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Diffstat (limited to 'gdtoa')
55 files changed, 0 insertions, 10090 deletions
diff --git a/gdtoa/AUTHORS b/gdtoa/AUTHORS deleted file mode 100644 index e69de29b..00000000 --- a/gdtoa/AUTHORS +++ /dev/null diff --git a/gdtoa/COPYING b/gdtoa/COPYING deleted file mode 100644 index e69de29b..00000000 --- a/gdtoa/COPYING +++ /dev/null diff --git a/gdtoa/ChangeLog b/gdtoa/ChangeLog deleted file mode 100644 index e69de29b..00000000 --- a/gdtoa/ChangeLog +++ /dev/null diff --git a/gdtoa/INSTALL b/gdtoa/INSTALL deleted file mode 100644 index 5458714e..00000000 --- a/gdtoa/INSTALL +++ /dev/null @@ -1,234 +0,0 @@ -Installation Instructions -************************* - -Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, -2006 Free Software Foundation, Inc. - -This file is free documentation; the Free Software Foundation gives -unlimited permission to copy, distribute and modify it. - -Basic Installation -================== - -Briefly, the shell commands `./configure; make; make install' should -configure, build, and install this package. The following -more-detailed instructions are generic; see the `README' file for -instructions specific to this package. - - The `configure' shell script attempts to guess correct values for -various system-dependent variables used during compilation. It uses -those values to create a `Makefile' in each directory of the package. -It may also create one or more `.h' files containing system-dependent -definitions. Finally, it creates a shell script `config.status' that -you can run in the future to recreate the current configuration, and a -file `config.log' containing compiler output (useful mainly for -debugging `configure'). - - It can also use an optional file (typically called `config.cache' -and enabled with `--cache-file=config.cache' or simply `-C') that saves -the results of its tests to speed up reconfiguring. Caching is -disabled by default to prevent problems with accidental use of stale -cache files. - - If you need to do unusual things to compile the package, please try -to figure out how `configure' could check whether to do them, and mail -diffs or instructions to the address given in the `README' so they can -be considered for the next release. If you are using the cache, and at -some point `config.cache' contains results you don't want to keep, you -may remove or edit it. - - The file `configure.ac' (or `configure.in') is used to create -`configure' by a program called `autoconf'. You need `configure.ac' if -you want to change it or regenerate `configure' using a newer version -of `autoconf'. - -The simplest way to compile this package is: - - 1. `cd' to the directory containing the package's source code and type - `./configure' to configure the package for your system. - - Running `configure' might take a while. While running, it prints - some messages telling which features it is checking for. - - 2. Type `make' to compile the package. - - 3. Optionally, type `make check' to run any self-tests that come with - the package. - - 4. Type `make install' to install the programs and any data files and - documentation. - - 5. You can remove the program binaries and object files from the - source code directory by typing `make clean'. To also remove the - files that `configure' created (so you can compile the package for - a different kind of computer), type `make distclean'. There is - also a `make maintainer-clean' target, but that is intended mainly - for the package's developers. If you use it, you may have to get - all sorts of other programs in order to regenerate files that came - with the distribution. - -Compilers and Options -===================== - -Some systems require unusual options for compilation or linking that the -`configure' script does not know about. Run `./configure --help' for -details on some of the pertinent environment variables. - - You can give `configure' initial values for configuration parameters -by setting variables in the command line or in the environment. Here -is an example: - - ./configure CC=c99 CFLAGS=-g LIBS=-lposix - - *Note Defining Variables::, for more details. - -Compiling For Multiple Architectures -==================================== - -You can compile the package for more than one kind of computer at the -same time, by placing the object files for each architecture in their -own directory. To do this, you can use GNU `make'. `cd' to the -directory where you want the object files and executables to go and run -the `configure' script. `configure' automatically checks for the -source code in the directory that `configure' is in and in `..'. - - With a non-GNU `make', it is safer to compile the package for one -architecture at a time in the source code directory. After you have -installed the package for one architecture, use `make distclean' before -reconfiguring for another architecture. - -Installation Names -================== - -By default, `make install' installs the package's commands under -`/usr/local/bin', include files under `/usr/local/include', etc. You -can specify an installation prefix other than `/usr/local' by giving -`configure' the option `--prefix=PREFIX'. - - You can specify separate installation prefixes for -architecture-specific files and architecture-independent files. If you -pass the option `--exec-prefix=PREFIX' to `configure', the package uses -PREFIX as the prefix for installing programs and libraries. -Documentation and other data files still use the regular prefix. - - In addition, if you use an unusual directory layout you can give -options like `--bindir=DIR' to specify different values for particular -kinds of files. Run `configure --help' for a list of the directories -you can set and what kinds of files go in them. - - If the package supports it, you can cause programs to be installed -with an extra prefix or suffix on their names by giving `configure' the -option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. - -Optional Features -================= - -Some packages pay attention to `--enable-FEATURE' options to -`configure', where FEATURE indicates an optional part of the package. -They may also pay attention to `--with-PACKAGE' options, where PACKAGE -is something like `gnu-as' or `x' (for the X Window System). The -`README' should mention any `--enable-' and `--with-' options that the -package recognizes. - - For packages that use the X Window System, `configure' can usually -find the X include and library files automatically, but if it doesn't, -you can use the `configure' options `--x-includes=DIR' and -`--x-libraries=DIR' to specify their locations. - -Specifying the System Type -========================== - -There may be some features `configure' cannot figure out automatically, -but needs to determine by the type of machine the package will run on. -Usually, assuming the package is built to be run on the _same_ -architectures, `configure' can figure that out, but if it prints a -message saying it cannot guess the machine type, give it the -`--build=TYPE' option. TYPE can either be a short name for the system -type, such as `sun4', or a canonical name which has the form: - - CPU-COMPANY-SYSTEM - -where SYSTEM can have one of these forms: - - OS KERNEL-OS - - See the file `config.sub' for the possible values of each field. If -`config.sub' isn't included in this package, then this package doesn't -need to know the machine type. - - If you are _building_ compiler tools for cross-compiling, you should -use the option `--target=TYPE' to select the type of system they will -produce code for. - - If you want to _use_ a cross compiler, that generates code for a -platform different from the build platform, you should specify the -"host" platform (i.e., that on which the generated programs will -eventually be run) with `--host=TYPE'. - -Sharing Defaults -================ - -If you want to set default values for `configure' scripts to share, you -can create a site shell script called `config.site' that gives default -values for variables like `CC', `cache_file', and `prefix'. -`configure' looks for `PREFIX/share/config.site' if it exists, then -`PREFIX/etc/config.site' if it exists. Or, you can set the -`CONFIG_SITE' environment variable to the location of the site script. -A warning: not all `configure' scripts look for a site script. - -Defining Variables -================== - -Variables not defined in a site shell script can be set in the -environment passed to `configure'. However, some packages may run -configure again during the build, and the customized values of these -variables may be lost. In order to avoid this problem, you should set -them in the `configure' command line, using `VAR=value'. For example: - - ./configure CC=/usr/local2/bin/gcc - -causes the specified `gcc' to be used as the C compiler (unless it is -overridden in the site shell script). - -Unfortunately, this technique does not work for `CONFIG_SHELL' due to -an Autoconf bug. Until the bug is fixed you can use this workaround: - - CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash - -`configure' Invocation -====================== - -`configure' recognizes the following options to control how it operates. - -`--help' -`-h' - Print a summary of the options to `configure', and exit. - -`--version' -`-V' - Print the version of Autoconf used to generate the `configure' - script, and exit. - -`--cache-file=FILE' - Enable the cache: use and save the results of the tests in FILE, - traditionally `config.cache'. FILE defaults to `/dev/null' to - disable caching. - -`--config-cache' -`-C' - Alias for `--cache-file=config.cache'. - -`--quiet' -`--silent' -`-q' - Do not print messages saying which checks are being made. To - suppress all normal output, redirect it to `/dev/null' (any error - messages will still be shown). - -`--srcdir=DIR' - Look for the package's source code in directory DIR. Usually - `configure' can determine that directory automatically. - -`configure' also accepts some other, not widely useful, options. Run -`configure --help' for more details. - diff --git a/gdtoa/LICENSE b/gdtoa/LICENSE deleted file mode 100644 index d736d781..00000000 --- a/gdtoa/LICENSE +++ /dev/null @@ -1,23 +0,0 @@ -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. diff --git a/gdtoa/Makefile.am b/gdtoa/Makefile.am deleted file mode 100644 index a1b1faf6..00000000 --- a/gdtoa/Makefile.am +++ /dev/null @@ -1,30 +0,0 @@ -lib_LTLIBRARIES = libgdtoa.la - -libgdtoa_la_LDFLAGS = -release 1.0 -libgdtoa_la_CPPFLAGS = -I$(top_builddir) -libgdtoa_la_SOURCES = \ - dmisc.c dtoa.c g_Qfmt.c g__fmt.c g_ddfmt.c g_dfmt.c g_ffmt.c \ - g_xLfmt.c g_xfmt.c gdtoa.c gethex.c gmisc.c hd_init.c hexnan.c \ - misc.c smisc.c strtoIQ.c strtoId.c strtoIdd.c strtoIf.c strtoIg.c \ - strtoIx.c strtoIxL.c strtod.c strtodI.c strtodg.c strtof.c strtopQ.c \ - strtopd.c strtopdd.c strtopf.c strtopx.c strtopxL.c strtorQ.c \ - strtord.c strtordd.c strtorf.c strtorx.c strtorxL.c sum.c ulp.c - -EXTRA_libgdtoa_la_SOURCES = arithchk.c qnan.c - -BUILT_SOURCES = arith.h gd_qnan.h -CLEANFILES = arith.h gd_qnan.h arithchk qnan -EXTRA_DIST = LICENSE strtodnrp.c - -arith.h: arithchk.c - $(CC) $(CFLAGS) -o $(top_builddir)/arithchk $< || \ - $(CC) -DNO_LONG_LONG $(CFLAGS) -o $(top_builddir)/arithchk $< - $(top_builddir)/arithchk > $(top_builddir)/$@ - rm -f $(top_builddir)/arithchk - -gd_qnan.h: qnan.c arith.h - $(CC) $(CFLAGS) -o $(top_builddir)/qnan -I$(top_builddir) $< - $(top_builddir)/qnan > $(top_builddir)/$@ - rm -f $(top_builddir)/qnan - -pkginclude_HEADERS = gdtoa.h gdtoaimp.h diff --git a/gdtoa/NEWS b/gdtoa/NEWS deleted file mode 100644 index e69de29b..00000000 --- a/gdtoa/NEWS +++ /dev/null diff --git a/gdtoa/README b/gdtoa/README deleted file mode 100644 index cf1947aa..00000000 --- a/gdtoa/README +++ /dev/null @@ -1,336 +0,0 @@ -This directory contains source for a library of binary -> decimal -and decimal -> binary conversion routines, for single-, double-, -and extended-precision IEEE binary floating-point arithmetic, and -other IEEE-like binary floating-point, including "double double", -as in - - T. J. Dekker, "A Floating-Point Technique for Extending the - Available Precision", Numer. Math. 18 (1971), pp. 224-242 - -and - - "Inside Macintosh: PowerPC Numerics", Addison-Wesley, 1994 - -The conversion routines use double-precision floating-point arithmetic -and, where necessary, high precision integer arithmetic. The routines -are generalizations of the strtod and dtoa routines described in - - David M. Gay, "Correctly Rounded Binary-Decimal and - Decimal-Binary Conversions", Numerical Analysis Manuscript - No. 90-10, Bell Labs, Murray Hill, 1990; - http://cm.bell-labs.com/cm/cs/what/ampl/REFS/rounding.ps.gz - -(based in part on papers by Clinger and Steele & White: see the -references in the above paper). - -The present conversion routines should be able to use any of IEEE binary, -VAX, or IBM-mainframe double-precision arithmetic internally, but I (dmg) -have so far only had a chance to test them with IEEE double precision -arithmetic. - -The core conversion routines are strtodg for decimal -> binary conversions -and gdtoa for binary -> decimal conversions. These routines operate -on arrays of unsigned 32-bit integers of type ULong, a signed 32-bit -exponent of type Long, and arithmetic characteristics described in -struct FPI; FPI, Long, and ULong are defined in gdtoa.h. File arith.h -is supposed to provide #defines that cause gdtoa.h to define its -types correctly. File arithchk.c is source for a program that -generates a suitable arith.h on all systems where I've been able to -test it. - -The core conversion routines are meant to be called by helper routines -that know details of the particular binary arithmetic of interest and -convert. The present directory provides helper routines for 5 variants -of IEEE binary floating-point arithmetic, each indicated by one or -two letters: - - f IEEE single precision - d IEEE double precision - x IEEE extended precision, as on Intel 80x87 - and software emulations of Motorola 68xxx chips - that do not pad the way the 68xxx does, but - only store 80 bits - xL IEEE extended precision, as on Motorola 68xxx chips - Q quad precision, as on Sun Sparc chips - dd double double, pairs of IEEE double numbers - whose sum is the desired value - -For decimal -> binary conversions, there are three families of -helper routines: one for round-nearest: - - strtof - strtod - strtodd - strtopd - strtopf - strtopx - strtopxL - strtopQ - -one with rounding direction specified: - - strtorf - strtord - strtordd - strtorx - strtorxL - strtorQ - -and one for computing an interval (at most one bit wide) that contains -the decimal number: - - strtoIf - strtoId - strtoIdd - strtoIx - strtoIxL - strtoIQ - -The latter call strtoIg, which makes one call on strtodg and adjusts -the result to provide the desired interval. On systems where native -arithmetic can easily make one-ulp adjustments on values in the -desired floating-point format, it might be more efficient to use the -native arithmetic. Routine strtodI is a variant of strtoId that -illustrates one way to do this for IEEE binary double-precision -arithmetic -- but whether this is more efficient remains to be seen. - -Functions strtod and strtof have "natural" return types, float and -double -- strtod is specified by the C standard, and strtof appears -in the stdlib.h of some systems, such as (at least some) Linux systems. -The other functions write their results to their final argument(s): -to the final two argument for the strtoI... (interval) functions, -and to the final argument for the others (strtop... and strtor...). -Where possible, these arguments have "natural" return types (double* -or float*), to permit at least some type checking. In reality, they -are viewed as arrays of ULong (or, for the "x" functions, UShort) -values. On systems where long double is the appropriate type, one can -pass long double* final argument(s) to these routines. The int value -that these routines return is the return value from the call they make -on strtodg; see the enum of possible return values in gdtoa.h. - -Source files g_ddfmt.c, misc.c, smisc.c, strtod.c, strtodg.c, and ulp.c -should use true IEEE double arithmetic (not, e.g., double extended), -at least for storing (and viewing the bits of) the variables declared -"double" within them. - -One detail indicated in struct FPI is whether the target binary -arithmetic departs from the IEEE standard by flushing denormalized -numbers to 0. On systems that do this, the helper routines for -conversion to double-double format (when compiled with -Sudden_Underflow #defined) penalize the bottom of the exponent -range so that they return a nonzero result only when the least -significant bit of the less significant member of the pair of -double values returned can be expressed as a normalized double -value. An alternative would be to drop to 53-bit precision near -the bottom of the exponent range. To get correct rounding, this -would (in general) require two calls on strtodg (one specifying -126-bit arithmetic, then, if necessary, one specifying 53-bit -arithmetic). - -By default, the core routine strtodg and strtod set errno to ERANGE -if the result overflows to +Infinity or underflows to 0. Compile -these routines with NO_ERRNO #defined to inhibit errno assignments. - -Routine strtod is based on netlib's "dtoa.c from fp", and -(f = strtod(s,se)) is more efficient for some conversions than, say, -strtord(s,se,1,&f). Parts of strtod require true IEEE double -arithmetic with the default rounding mode (round-to-nearest) and, on -systems with IEEE extended-precision registers, double-precision -(53-bit) rounding precision. If the machine uses (the equivalent of) -Intel 80x87 arithmetic, the call - _control87(PC_53, MCW_PC); -does this with many compilers. Whether this or another call is -appropriate depends on the compiler; for this to work, it may be -necessary to #include "float.h" or another system-dependent header -file. - -Source file strtodnrp.c gives a strtod that does not require 53-bit -rounding precision on systems (such as Intel IA32 systems) that may -suffer double rounding due to use of extended-precision registers. -For some conversions this variant of strtod is less efficient than the -one in strtod.c when the latter is run with 53-bit rounding precision. - -The values that the strto* routines return for NaNs are determined by -gd_qnan.h, which the makefile generates by running the program whose -source is qnan.c. Note that the rules for distinguishing signaling -from quiet NaNs are system-dependent. For cross-compilation, you need -to determine arith.h and gd_qnan.h suitably, e.g., using the -arithmetic of the target machine. - -C99's hexadecimal floating-point constants are recognized by the -strto* routines (but this feature has not yet been heavily tested). -Compiling with NO_HEX_FP #defined disables this feature. - -When compiled with -DINFNAN_CHECK, the strto* routines recognize C99's -NaN and Infinity syntax. Moreover, unless No_Hex_NaN is #defined, the -strto* routines also recognize C99's NaN(...) syntax: they accept -(case insensitively) strings of the form NaN(x), where x is a string -of hexadecimal digits and spaces; if there is only one string of -hexadecimal digits, it is taken for the fraction bits of the resulting -NaN; if there are two or more strings of hexadecimal digits, each -string is assigned to the next available sequence of 32-bit words of -fractions bits (starting with the most significant), right-aligned in -each sequence. - -For binary -> decimal conversions, I've provided just one family -of helper routines: - - g_ffmt - g_dfmt - g_ddfmt - g_xfmt - g_xLfmt - g_Qfmt - -which do a "%g" style conversion either to a specified number of decimal -places (if their ndig argument is positive), or to the shortest -decimal string that rounds to the given binary floating-point value -(if ndig <= 0). They write into a buffer supplied as an argument -and return either a pointer to the end of the string (a null character) -in the buffer, if the buffer was long enough, or 0. Other forms of -conversion are easily done with the help of gdtoa(), such as %e or %f -style and conversions with direction of rounding specified (so that, if -desired, the decimal value is either >= or <= the binary value). - -For an example of more general conversions based on dtoa(), see -netlib's "printf.c from ampl/solvers". - -For double-double -> decimal, g_ddfmt() assumes IEEE-like arithmetic -of precision max(126, #bits(input)) bits, where #bits(input) is the -number of mantissa bits needed to represent the sum of the two double -values in the input. - -The makefile creates a library, gdtoa.a. To use the helper -routines, a program only needs to include gdtoa.h. All the -source files for gdtoa.a include a more extensive gdtoaimp.h; -among other things, gdtoaimp.h has #defines that make "internal" -names end in _D2A. To make a "system" library, one could modify -these #defines to make the names start with __. - -Various comments about possible #defines appear in gdtoaimp.h, -but for most purposes, arith.h should set suitable #defines. - -Systems with preemptive scheduling of multiple threads require some -manual intervention. On such systems, it's necessary to compile -dmisc.c, dtoa.c gdota.c, and misc.c with MULTIPLE_THREADS #defined, -and to provide (or suitably #define) two locks, acquired by -ACQUIRE_DTOA_LOCK(n) and freed by FREE_DTOA_LOCK(n) for n = 0 or 1. -(The second lock, accessed in pow5mult, ensures lazy evaluation of -only one copy of high powers of 5; omitting this lock would introduce -a small probability of wasting memory, but would otherwise be harmless.) -Routines that call dtoa or gdtoa directly must also invoke freedtoa(s) -to free the value s returned by dtoa or gdtoa. It's OK to do so whether -or not MULTIPLE_THREADS is #defined, and the helper g_*fmt routines -listed above all do this indirectly (in gfmt_D2A(), which they all call). - -By default, there is a private pool of memory of length 2000 bytes -for intermediate quantities, and MALLOC (see gdtoaimp.h) is called only -if the private pool does not suffice. 2000 is large enough that MALLOC -is called only under very unusual circumstances (decimal -> binary -conversion of very long strings) for conversions to and from double -precision. For systems with preemptively scheduled multiple threads -or for conversions to extended or quad, it may be appropriate to -#define PRIVATE_MEM nnnn, where nnnn is a suitable value > 2000. -For extended and quad precisions, -DPRIVATE_MEM=20000 is probably -plenty even for many digits at the ends of the exponent range. -Use of the private pool avoids some overhead. - -Directory test provides some test routines. See its README. -I've also tested this stuff (except double double conversions) -with Vern Paxson's testbase program: see - - V. Paxson and W. Kahan, "A Program for Testing IEEE Binary-Decimal - Conversion", manuscript, May 1991, - ftp://ftp.ee.lbl.gov/testbase-report.ps.Z . - -(The same ftp directory has source for testbase.) - -Some system-dependent additions to CFLAGS in the makefile: - - HU-UX: -Aa -Ae - OSF (DEC Unix): -ieee_with_no_inexact - SunOS 4.1x: -DKR_headers -DBad_float_h - -If you want to put this stuff into a shared library and your -operating system requires export lists for shared libraries, -the following would be an appropriate export list: - - dtoa - freedtoa - g_Qfmt - g_ddfmt - g_dfmt - g_ffmt - g_xLfmt - g_xfmt - gdtoa - strtoIQ - strtoId - strtoIdd - strtoIf - strtoIx - strtoIxL - strtod - strtodI - strtodg - strtof - strtopQ - strtopd - strtopdd - strtopf - strtopx - strtopxL - strtorQ - strtord - strtordd - strtorf - strtorx - strtorxL - -When time permits, I (dmg) hope to write in more detail about the -present conversion routines; for now, this README file must suffice. -Meanwhile, if you wish to write helper functions for other kinds of -IEEE-like arithmetic, some explanation of struct FPI and the bits -array may be helpful. Both gdtoa and strtodg operate on a bits array -described by FPI *fpi. The bits array is of type ULong, a 32-bit -unsigned integer type. Floating-point numbers have fpi->nbits bits, -with the least significant 32 bits in bits[0], the next 32 bits in -bits[1], etc. These numbers are regarded as integers multiplied by -2^e (i.e., 2 to the power of the exponent e), where e is the second -argument (be) to gdtoa and is stored in *exp by strtodg. The minimum -and maximum exponent values fpi->emin and fpi->emax for normalized -floating-point numbers reflect this arrangement. For example, the -P754 standard for binary IEEE arithmetic specifies doubles as having -53 bits, with normalized values of the form 1.xxxxx... times 2^(b-1023), -with 52 bits (the x's) and the biased exponent b represented explicitly; -b is an unsigned integer in the range 1 <= b <= 2046 for normalized -finite doubles, b = 0 for denormals, and b = 2047 for Infinities and NaNs. -To turn an IEEE double into the representation used by strtodg and gdtoa, -we multiply 1.xxxx... by 2^52 (to make it an integer) and reduce the -exponent e = (b-1023) by 52: - - fpi->emin = 1 - 1023 - 52 - fpi->emax = 1046 - 1023 - 52 - -In various wrappers for IEEE double, we actually write -53 + 1 rather -than -52, to emphasize that there are 53 bits including one implicit bit. -Field fpi->rounding indicates the desired rounding direction, with -possible values - FPI_Round_zero = toward 0, - FPI_Round_near = unbiased rounding -- the IEEE default, - FPI_Round_up = toward +Infinity, and - FPI_Round_down = toward -Infinity -given in gdtoa.h. - -Field fpi->sudden_underflow indicates whether strtodg should return -denormals or flush them to zero. Normal floating-point numbers have -bit fpi->nbits in the bits array on. Denormals have it off, with -exponent = fpi->emin. Strtodg provides distinct return values for normals -and denormals; see gdtoa.h. - -Compiling g__fmt.c, strtod.c, and strtodg.c with -DUSE_LOCALE causes -the decimal-point character to be taken from the current locale; otherwise -it is '.'. - -Please send comments to David M. Gay (dmg at acm dot org, with " at " -changed at "@" and " dot " changed to "."). diff --git a/gdtoa/arithchk.c b/gdtoa/arithchk.c deleted file mode 100644 index 3211aeda..00000000 --- a/gdtoa/arithchk.c +++ /dev/null @@ -1,183 +0,0 @@ -/**************************************************************** -Copyright (C) 1997, 1998 Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. -****************************************************************/ - -/* Try to deduce arith.h from arithmetic properties. */ - -#include <stdio.h> - - static int dalign; - typedef struct -Akind { - char *name; - int kind; - } Akind; - - static Akind -IEEE_8087 = { "IEEE_8087", 1 }, -IEEE_MC68k = { "IEEE_MC68k", 2 }, -IBM = { "IBM", 3 }, -VAX = { "VAX", 4 }, -CRAY = { "CRAY", 5}; - - static Akind * -Lcheck() -{ - union { - double d; - long L[2]; - } u; - struct { - double d; - long L; - } x[2]; - - if (sizeof(x) > 2*(sizeof(double) + sizeof(long))) - dalign = 1; - u.L[0] = u.L[1] = 0; - u.d = 1e13; - if (u.L[0] == 1117925532 && u.L[1] == -448790528) - return &IEEE_MC68k; - if (u.L[1] == 1117925532 && u.L[0] == -448790528) - return &IEEE_8087; - if (u.L[0] == -2065213935 && u.L[1] == 10752) - return &VAX; - if (u.L[0] == 1267827943 && u.L[1] == 704643072) - return &IBM; - return 0; - } - - static Akind * -icheck() -{ - union { - double d; - int L[2]; - } u; - struct { - double d; - int L; - } x[2]; - - if (sizeof(x) > 2*(sizeof(double) + sizeof(int))) - dalign = 1; - u.L[0] = u.L[1] = 0; - u.d = 1e13; - if (u.L[0] == 1117925532 && u.L[1] == -448790528) - return &IEEE_MC68k; - if (u.L[1] == 1117925532 && u.L[0] == -448790528) - return &IEEE_8087; - if (u.L[0] == -2065213935 && u.L[1] == 10752) - return &VAX; - if (u.L[0] == 1267827943 && u.L[1] == 704643072) - return &IBM; - return 0; - } - -char *emptyfmt = ""; /* avoid possible warning message with printf("") */ - - static Akind * -ccheck() -{ - union { - double d; - long L; - } u; - long Cray1; - - /* Cray1 = 4617762693716115456 -- without overflow on non-Crays */ - Cray1 = printf(emptyfmt) < 0 ? 0 : 4617762; - if (printf(emptyfmt, Cray1) >= 0) - Cray1 = 1000000*Cray1 + 693716; - if (printf(emptyfmt, Cray1) >= 0) - Cray1 = 1000000*Cray1 + 115456; - u.d = 1e13; - if (u.L == Cray1) - return &CRAY; - return 0; - } - - static int -fzcheck() -{ - double a, b; - int i; - - a = 1.; - b = .1; - for(i = 155;; b *= b, i >>= 1) { - if (i & 1) { - a *= b; - if (i == 1) - break; - } - } - b = a * a; - return b == 0.; - } - - int -main() -{ - Akind *a = 0; - int Ldef = 0; - FILE *f; - -#ifdef WRITE_ARITH_H /* for Symantec's buggy "make" */ - f = fopen("arith.h", "w"); - if (!f) { - printf("Cannot open arith.h\n"); - return 1; - } -#else - f = stdout; -#endif - - if (sizeof(double) == 2*sizeof(long)) - a = Lcheck(); - else if (sizeof(double) == 2*sizeof(int)) { - Ldef = 1; - a = icheck(); - } - else if (sizeof(double) == sizeof(long)) - a = ccheck(); - if (a) { - fprintf(f, "#define %s\n#define Arith_Kind_ASL %d\n", - a->name, a->kind); - if (Ldef) - fprintf(f, "#define Long int\n#define Intcast (int)(long)\n"); - if (dalign) - fprintf(f, "#define Double_Align\n"); - if (sizeof(char*) == 8) - fprintf(f, "#define X64_bit_pointers\n"); -#ifndef NO_LONG_LONG - if (sizeof(long long) < 8) -#endif - fprintf(f, "#define NO_LONG_LONG\n"); - if (a->kind <= 2 && fzcheck()) - fprintf(f, "#define Sudden_Underflow\n"); - return 0; - } - fprintf(f, "/* Unknown arithmetic */\n"); - return 1; - } diff --git a/gdtoa/configure.in b/gdtoa/configure.in deleted file mode 100644 index 01ae5680..00000000 --- a/gdtoa/configure.in +++ /dev/null @@ -1,26 +0,0 @@ -# -*- Autoconf -*- -# Process this file with autoconf to produce a configure script. - -AC_PREREQ(2.59) -AC_INIT(gdtoa, 1.0, David M. Gay) -AM_INIT_AUTOMAKE(gdtoa, 1.0) -AC_CONFIG_SRCDIR([gdtoa.c]) -AC_CONFIG_HEADERS([acconf.h]) - -# Checks for programs. -AC_PROG_MAKE_SET -AC_PROG_LIBTOOL -AM_PROG_LIBTOOL - -# Checks for header files. -AC_STDC_HEADERS -AC_HAVE_HEADERS(math.h) - -# Checks for typedefs, structures, and compiler characteristics. -AC_TYPE_SIZE_T - -# Checks for library functions. -AC_HEADER_STDC - -AC_CONFIG_FILES([Makefile]) -AC_OUTPUT diff --git a/gdtoa/dmisc.c b/gdtoa/dmisc.c deleted file mode 100644 index ce170c73..00000000 --- a/gdtoa/dmisc.c +++ /dev/null @@ -1,216 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#ifndef MULTIPLE_THREADS - char *dtoa_result; -#endif - - char * -#ifdef KR_headers -rv_alloc(i) int i; -#else -rv_alloc(int i) -#endif -{ - int j, k, *r; - - j = sizeof(ULong); - for(k = 0; - sizeof(Bigint) - sizeof(ULong) - sizeof(int) + j <= i; - j <<= 1) - k++; - r = (int*)Balloc(k); - *r = k; - return -#ifndef MULTIPLE_THREADS - dtoa_result = -#endif - (char *)(r+1); - } - - char * -#ifdef KR_headers -nrv_alloc(s, rve, n) char *s, **rve; int n; -#else -nrv_alloc(char *s, char **rve, int n) -#endif -{ - char *rv, *t; - - t = rv = rv_alloc(n); - while((*t = *s++) !=0) - t++; - if (rve) - *rve = t; - return rv; - } - -/* freedtoa(s) must be used to free values s returned by dtoa - * when MULTIPLE_THREADS is #defined. It should be used in all cases, - * but for consistency with earlier versions of dtoa, it is optional - * when MULTIPLE_THREADS is not defined. - */ - - void -#ifdef KR_headers -freedtoa(s) char *s; -#else -freedtoa(char *s) -#endif -{ - Bigint *b = (Bigint *)((int *)s - 1); - b->maxwds = 1 << (b->k = *(int*)b); - Bfree(b); -#ifndef MULTIPLE_THREADS - if (s == dtoa_result) - dtoa_result = 0; -#endif - } - - int -quorem -#ifdef KR_headers - (b, S) Bigint *b, *S; -#else - (Bigint *b, Bigint *S) -#endif -{ - int n; - ULong *bx, *bxe, q, *sx, *sxe; -#ifdef ULLong - ULLong borrow, carry, y, ys; -#else - ULong borrow, carry, y, ys; -#ifdef Pack_32 - ULong si, z, zs; -#endif -#endif - - n = S->wds; -#ifdef DEBUG - /*debug*/ if (b->wds > n) - /*debug*/ Bug("oversize b in quorem"); -#endif - if (b->wds < n) - return 0; - sx = S->x; - sxe = sx + --n; - bx = b->x; - bxe = bx + n; - q = *bxe / (*sxe + 1); /* ensure q <= true quotient */ -#ifdef DEBUG - /*debug*/ if (q > 9) - /*debug*/ Bug("oversized quotient in quorem"); -#endif - if (q) { - borrow = 0; - carry = 0; - do { -#ifdef ULLong - ys = *sx++ * (ULLong)q + carry; - carry = ys >> 32; - y = *bx - (ys & 0xffffffffUL) - borrow; - borrow = y >> 32 & 1UL; - *bx++ = y & 0xffffffffUL; -#else -#ifdef Pack_32 - si = *sx++; - ys = (si & 0xffff) * q + carry; - zs = (si >> 16) * q + (ys >> 16); - carry = zs >> 16; - y = (*bx & 0xffff) - (ys & 0xffff) - borrow; - borrow = (y & 0x10000) >> 16; - z = (*bx >> 16) - (zs & 0xffff) - borrow; - borrow = (z & 0x10000) >> 16; - Storeinc(bx, z, y); -#else - ys = *sx++ * q + carry; - carry = ys >> 16; - y = *bx - (ys & 0xffff) - borrow; - borrow = (y & 0x10000) >> 16; - *bx++ = y & 0xffff; -#endif -#endif - } - while(sx <= sxe); - if (!*bxe) { - bx = b->x; - while(--bxe > bx && !*bxe) - --n; - b->wds = n; - } - } - if (cmp(b, S) >= 0) { - q++; - borrow = 0; - carry = 0; - bx = b->x; - sx = S->x; - do { -#ifdef ULLong - ys = *sx++ + carry; - carry = ys >> 32; - y = *bx - (ys & 0xffffffffUL) - borrow; - borrow = y >> 32 & 1UL; - *bx++ = y & 0xffffffffUL; -#else -#ifdef Pack_32 - si = *sx++; - ys = (si & 0xffff) + carry; - zs = (si >> 16) + (ys >> 16); - carry = zs >> 16; - y = (*bx & 0xffff) - (ys & 0xffff) - borrow; - borrow = (y & 0x10000) >> 16; - z = (*bx >> 16) - (zs & 0xffff) - borrow; - borrow = (z & 0x10000) >> 16; - Storeinc(bx, z, y); -#else - ys = *sx++ + carry; - carry = ys >> 16; - y = *bx - (ys & 0xffff) - borrow; - borrow = (y & 0x10000) >> 16; - *bx++ = y & 0xffff; -#endif -#endif - } - while(sx <= sxe); - bx = b->x; - bxe = bx + n; - if (!*bxe) { - while(--bxe > bx && !*bxe) - --n; - b->wds = n; - } - } - return q; - } diff --git a/gdtoa/dtoa.c b/gdtoa/dtoa.c deleted file mode 100644 index e808cc1f..00000000 --- a/gdtoa/dtoa.c +++ /dev/null @@ -1,753 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 1999 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -/* dtoa for IEEE arithmetic (dmg): convert double to ASCII string. - * - * Inspired by "How to Print Floating-Point Numbers Accurately" by - * Guy L. Steele, Jr. and Jon L. White [Proc. ACM SIGPLAN '90, pp. 112-126]. - * - * Modifications: - * 1. Rather than iterating, we use a simple numeric overestimate - * to determine k = floor(log10(d)). We scale relevant - * quantities using O(log2(k)) rather than O(k) multiplications. - * 2. For some modes > 2 (corresponding to ecvt and fcvt), we don't - * try to generate digits strictly left to right. Instead, we - * compute with fewer bits and propagate the carry if necessary - * when rounding the final digit up. This is often faster. - * 3. Under the assumption that input will be rounded nearest, - * mode 0 renders 1e23 as 1e23 rather than 9.999999999999999e22. - * That is, we allow equality in stopping tests when the - * round-nearest rule will give the same floating-point value - * as would satisfaction of the stopping test with strict - * inequality. - * 4. We remove common factors of powers of 2 from relevant - * quantities. - * 5. When converting floating-point integers less than 1e16, - * we use floating-point arithmetic rather than resorting - * to multiple-precision integers. - * 6. When asked to produce fewer than 15 digits, we first try - * to get by with floating-point arithmetic; we resort to - * multiple-precision integer arithmetic only if we cannot - * guarantee that the floating-point calculation has given - * the correctly rounded result. For k requested digits and - * "uniformly" distributed input, the probability is - * something like 10^(k-15) that we must resort to the Long - * calculation. - */ - -#ifdef Honor_FLT_ROUNDS -#define Rounding rounding -#undef Check_FLT_ROUNDS -#define Check_FLT_ROUNDS -#else -#define Rounding Flt_Rounds -#endif - - char * -dtoa -#ifdef KR_headers - (d, mode, ndigits, decpt, sign, rve) - double d; int mode, ndigits, *decpt, *sign; char **rve; -#else - (double d, int mode, int ndigits, int *decpt, int *sign, char **rve) -#endif -{ - /* Arguments ndigits, decpt, sign are similar to those - of ecvt and fcvt; trailing zeros are suppressed from - the returned string. If not null, *rve is set to point - to the end of the return value. If d is +-Infinity or NaN, - then *decpt is set to 9999. - - mode: - 0 ==> shortest string that yields d when read in - and rounded to nearest. - 1 ==> like 0, but with Steele & White stopping rule; - e.g. with IEEE P754 arithmetic , mode 0 gives - 1e23 whereas mode 1 gives 9.999999999999999e22. - 2 ==> max(1,ndigits) significant digits. This gives a - return value similar to that of ecvt, except - that trailing zeros are suppressed. - 3 ==> through ndigits past the decimal point. This - gives a return value similar to that from fcvt, - except that trailing zeros are suppressed, and - ndigits can be negative. - 4,5 ==> similar to 2 and 3, respectively, but (in - round-nearest mode) with the tests of mode 0 to - possibly return a shorter string that rounds to d. - With IEEE arithmetic and compilation with - -DHonor_FLT_ROUNDS, modes 4 and 5 behave the same - as modes 2 and 3 when FLT_ROUNDS != 1. - 6-9 ==> Debugging modes similar to mode - 4: don't try - fast floating-point estimate (if applicable). - - Values of mode other than 0-9 are treated as mode 0. - - Sufficient space is allocated to the return value - to hold the suppressed trailing zeros. - */ - - int bbits, b2, b5, be, dig, i, ieps, ilim, ilim0, ilim1, - j, j1, k, k0, k_check, leftright, m2, m5, s2, s5, - spec_case, try_quick; - Long L; -#ifndef Sudden_Underflow - int denorm; - ULong x; -#endif - Bigint *b, *b1, *delta, *mlo, *mhi, *S; - double d2, ds, eps; - char *s, *s0; -#ifdef Honor_FLT_ROUNDS - int rounding; -#endif -#ifdef SET_INEXACT - int inexact, oldinexact; -#endif - -#ifndef MULTIPLE_THREADS - if (dtoa_result) { - freedtoa(dtoa_result); - dtoa_result = 0; - } -#endif - - if (word0(d) & Sign_bit) { - /* set sign for everything, including 0's and NaNs */ - *sign = 1; - word0(d) &= ~Sign_bit; /* clear sign bit */ - } - else - *sign = 0; - -#if defined(IEEE_Arith) + defined(VAX) -#ifdef IEEE_Arith - if ((word0(d) & Exp_mask) == Exp_mask) -#else - if (word0(d) == 0x8000) -#endif - { - /* Infinity or NaN */ - *decpt = 9999; -#ifdef IEEE_Arith - if (!word1(d) && !(word0(d) & 0xfffff)) - return nrv_alloc("Infinity", rve, 8); -#endif - return nrv_alloc("NaN", rve, 3); - } -#endif -#ifdef IBM - dval(d) += 0; /* normalize */ -#endif - if (!dval(d)) { - *decpt = 1; - return nrv_alloc("0", rve, 1); - } - -#ifdef SET_INEXACT - try_quick = oldinexact = get_inexact(); - inexact = 1; -#endif -#ifdef Honor_FLT_ROUNDS - if ((rounding = Flt_Rounds) >= 2) { - if (*sign) - rounding = rounding == 2 ? 0 : 2; - else - if (rounding != 2) - rounding = 0; - } -#endif - - b = d2b(dval(d), &be, &bbits); -#ifdef Sudden_Underflow - i = (int)(word0(d) >> Exp_shift1 & (Exp_mask>>Exp_shift1)); -#else - if (( i = (int)(word0(d) >> Exp_shift1 & (Exp_mask>>Exp_shift1)) )!=0) { -#endif - dval(d2) = dval(d); - word0(d2) &= Frac_mask1; - word0(d2) |= Exp_11; -#ifdef IBM - if (( j = 11 - hi0bits(word0(d2) & Frac_mask) )!=0) - dval(d2) /= 1 << j; -#endif - - /* log(x) ~=~ log(1.5) + (x-1.5)/1.5 - * log10(x) = log(x) / log(10) - * ~=~ log(1.5)/log(10) + (x-1.5)/(1.5*log(10)) - * log10(d) = (i-Bias)*log(2)/log(10) + log10(d2) - * - * This suggests computing an approximation k to log10(d) by - * - * k = (i - Bias)*0.301029995663981 - * + ( (d2-1.5)*0.289529654602168 + 0.176091259055681 ); - * - * We want k to be too large rather than too small. - * The error in the first-order Taylor series approximation - * is in our favor, so we just round up the constant enough - * to compensate for any error in the multiplication of - * (i - Bias) by 0.301029995663981; since |i - Bias| <= 1077, - * and 1077 * 0.30103 * 2^-52 ~=~ 7.2e-14, - * adding 1e-13 to the constant term more than suffices. - * Hence we adjust the constant term to 0.1760912590558. - * (We could get a more accurate k by invoking log10, - * but this is probably not worthwhile.) - */ - - i -= Bias; -#ifdef IBM - i <<= 2; - i += j; -#endif -#ifndef Sudden_Underflow - denorm = 0; - } - else { - /* d is denormalized */ - - i = bbits + be + (Bias + (P-1) - 1); - x = i > 32 ? word0(d) << 64 - i | word1(d) >> i - 32 - : word1(d) << 32 - i; - dval(d2) = x; - word0(d2) -= 31*Exp_msk1; /* adjust exponent */ - i -= (Bias + (P-1) - 1) + 1; - denorm = 1; - } -#endif - ds = (dval(d2)-1.5)*0.289529654602168 + 0.1760912590558 + i*0.301029995663981; - k = (int)ds; - if (ds < 0. && ds != k) - k--; /* want k = floor(ds) */ - k_check = 1; - if (k >= 0 && k <= Ten_pmax) { - if (dval(d) < tens[k]) - k--; - k_check = 0; - } - j = bbits - i - 1; - if (j >= 0) { - b2 = 0; - s2 = j; - } - else { - b2 = -j; - s2 = 0; - } - if (k >= 0) { - b5 = 0; - s5 = k; - s2 += k; - } - else { - b2 -= k; - b5 = -k; - s5 = 0; - } - if (mode < 0 || mode > 9) - mode = 0; - -#ifndef SET_INEXACT -#ifdef Check_FLT_ROUNDS - try_quick = Rounding == 1; -#else - try_quick = 1; -#endif -#endif /*SET_INEXACT*/ - - if (mode > 5) { - mode -= 4; - try_quick = 0; - } - leftright = 1; - switch(mode) { - case 0: - case 1: - ilim = ilim1 = -1; - i = 18; - ndigits = 0; - break; - case 2: - leftright = 0; - /* no break */ - case 4: - if (ndigits <= 0) - ndigits = 1; - ilim = ilim1 = i = ndigits; - break; - case 3: - leftright = 0; - /* no break */ - case 5: - i = ndigits + k + 1; - ilim = i; - ilim1 = i - 1; - if (i <= 0) - i = 1; - } - s = s0 = rv_alloc(i); - -#ifdef Honor_FLT_ROUNDS - if (mode > 1 && rounding != 1) - leftright = 0; -#endif - - if (ilim >= 0 && ilim <= Quick_max && try_quick) { - - /* Try to get by with floating-point arithmetic. */ - - i = 0; - dval(d2) = dval(d); - k0 = k; - ilim0 = ilim; - ieps = 2; /* conservative */ - if (k > 0) { - ds = tens[k&0xf]; - j = k >> 4; - if (j & Bletch) { - /* prevent overflows */ - j &= Bletch - 1; - dval(d) /= bigtens[n_bigtens-1]; - ieps++; - } - for(; j; j >>= 1, i++) - if (j & 1) { - ieps++; - ds *= bigtens[i]; - } - dval(d) /= ds; - } - else if (( j1 = -k )!=0) { - dval(d) *= tens[j1 & 0xf]; - for(j = j1 >> 4; j; j >>= 1, i++) - if (j & 1) { - ieps++; - dval(d) *= bigtens[i]; - } - } - if (k_check && dval(d) < 1. && ilim > 0) { - if (ilim1 <= 0) - goto fast_failed; - ilim = ilim1; - k--; - dval(d) *= 10.; - ieps++; - } - dval(eps) = ieps*dval(d) + 7.; - word0(eps) -= (P-1)*Exp_msk1; - if (ilim == 0) { - S = mhi = 0; - dval(d) -= 5.; - if (dval(d) > dval(eps)) - goto one_digit; - if (dval(d) < -dval(eps)) - goto no_digits; - goto fast_failed; - } -#ifndef No_leftright - if (leftright) { - /* Use Steele & White method of only - * generating digits needed. - */ - dval(eps) = 0.5/tens[ilim-1] - dval(eps); - for(i = 0;;) { - L = dval(d); - dval(d) -= L; - *s++ = '0' + (int)L; - if (dval(d) < dval(eps)) - goto ret1; - if (1. - dval(d) < dval(eps)) - goto bump_up; - if (++i >= ilim) - break; - dval(eps) *= 10.; - dval(d) *= 10.; - } - } - else { -#endif - /* Generate ilim digits, then fix them up. */ - dval(eps) *= tens[ilim-1]; - for(i = 1;; i++, dval(d) *= 10.) { - L = (Long)(dval(d)); - if (!(dval(d) -= L)) - ilim = i; - *s++ = '0' + (int)L; - if (i == ilim) { - if (dval(d) > 0.5 + dval(eps)) - goto bump_up; - else if (dval(d) < 0.5 - dval(eps)) { - while(*--s == '0'); - s++; - goto ret1; - } - break; - } - } -#ifndef No_leftright - } -#endif - fast_failed: - s = s0; - dval(d) = dval(d2); - k = k0; - ilim = ilim0; - } - - /* Do we have a "small" integer? */ - - if (be >= 0 && k <= Int_max) { - /* Yes. */ - ds = tens[k]; - if (ndigits < 0 && ilim <= 0) { - S = mhi = 0; - if (ilim < 0 || dval(d) <= 5*ds) - goto no_digits; - goto one_digit; - } - for(i = 1;; i++, dval(d) *= 10.) { - L = (Long)(dval(d) / ds); - dval(d) -= L*ds; -#ifdef Check_FLT_ROUNDS - /* If FLT_ROUNDS == 2, L will usually be high by 1 */ - if (dval(d) < 0) { - L--; - dval(d) += ds; - } -#endif - *s++ = '0' + (int)L; - if (!dval(d)) { -#ifdef SET_INEXACT - inexact = 0; -#endif - break; - } - if (i == ilim) { -#ifdef Honor_FLT_ROUNDS - if (mode > 1) - switch(rounding) { - case 0: goto ret1; - case 2: goto bump_up; - } -#endif - dval(d) += dval(d); - if (dval(d) > ds || dval(d) == ds && L & 1) { - bump_up: - while(*--s == '9') - if (s == s0) { - k++; - *s = '0'; - break; - } - ++*s++; - } - break; - } - } - goto ret1; - } - - m2 = b2; - m5 = b5; - mhi = mlo = 0; - if (leftright) { - i = -#ifndef Sudden_Underflow - denorm ? be + (Bias + (P-1) - 1 + 1) : -#endif -#ifdef IBM - 1 + 4*P - 3 - bbits + ((bbits + be - 1) & 3); -#else - 1 + P - bbits; -#endif - b2 += i; - s2 += i; - mhi = i2b(1); - } - if (m2 > 0 && s2 > 0) { - i = m2 < s2 ? m2 : s2; - b2 -= i; - m2 -= i; - s2 -= i; - } - if (b5 > 0) { - if (leftright) { - if (m5 > 0) { - mhi = pow5mult(mhi, m5); - b1 = mult(mhi, b); - Bfree(b); - b = b1; - } - if (( j = b5 - m5 )!=0) - b = pow5mult(b, j); - } - else - b = pow5mult(b, b5); - } - S = i2b(1); - if (s5 > 0) - S = pow5mult(S, s5); - - /* Check for special case that d is a normalized power of 2. */ - - spec_case = 0; - if ((mode < 2 || leftright) -#ifdef Honor_FLT_ROUNDS - && rounding == 1 -#endif - ) { - if (!word1(d) && !(word0(d) & Bndry_mask) -#ifndef Sudden_Underflow - && word0(d) & (Exp_mask & ~Exp_msk1) -#endif - ) { - /* The special case */ - b2 += Log2P; - s2 += Log2P; - spec_case = 1; - } - } - - /* Arrange for convenient computation of quotients: - * shift left if necessary so divisor has 4 leading 0 bits. - * - * Perhaps we should just compute leading 28 bits of S once - * and for all and pass them and a shift to quorem, so it - * can do shifts and ors to compute the numerator for q. - */ -#ifdef Pack_32 - if (( i = ((s5 ? 32 - hi0bits(S->x[S->wds-1]) : 1) + s2) & 0x1f )!=0) - i = 32 - i; -#else - if (( i = ((s5 ? 32 - hi0bits(S->x[S->wds-1]) : 1) + s2) & 0xf )!=0) - i = 16 - i; -#endif - if (i > 4) { - i -= 4; - b2 += i; - m2 += i; - s2 += i; - } - else if (i < 4) { - i += 28; - b2 += i; - m2 += i; - s2 += i; - } - if (b2 > 0) - b = lshift(b, b2); - if (s2 > 0) - S = lshift(S, s2); - if (k_check) { - if (cmp(b,S) < 0) { - k--; - b = multadd(b, 10, 0); /* we botched the k estimate */ - if (leftright) - mhi = multadd(mhi, 10, 0); - ilim = ilim1; - } - } - if (ilim <= 0 && (mode == 3 || mode == 5)) { - if (ilim < 0 || cmp(b,S = multadd(S,5,0)) <= 0) { - /* no digits, fcvt style */ - no_digits: - k = -1 - ndigits; - goto ret; - } - one_digit: - *s++ = '1'; - k++; - goto ret; - } - if (leftright) { - if (m2 > 0) - mhi = lshift(mhi, m2); - - /* Compute mlo -- check for special case - * that d is a normalized power of 2. - */ - - mlo = mhi; - if (spec_case) { - mhi = Balloc(mhi->k); - Bcopy(mhi, mlo); - mhi = lshift(mhi, Log2P); - } - - for(i = 1;;i++) { - dig = quorem(b,S) + '0'; - /* Do we yet have the shortest decimal string - * that will round to d? - */ - j = cmp(b, mlo); - delta = diff(S, mhi); - j1 = delta->sign ? 1 : cmp(b, delta); - Bfree(delta); -#ifndef ROUND_BIASED - if (j1 == 0 && mode != 1 && !(word1(d) & 1) -#ifdef Honor_FLT_ROUNDS - && rounding >= 1 -#endif - ) { - if (dig == '9') - goto round_9_up; - if (j > 0) - dig++; -#ifdef SET_INEXACT - else if (!b->x[0] && b->wds <= 1) - inexact = 0; -#endif - *s++ = dig; - goto ret; - } -#endif - if (j < 0 || j == 0 && mode != 1 -#ifndef ROUND_BIASED - && !(word1(d) & 1) -#endif - ) { - if (!b->x[0] && b->wds <= 1) { -#ifdef SET_INEXACT - inexact = 0; -#endif - goto accept_dig; - } -#ifdef Honor_FLT_ROUNDS - if (mode > 1) - switch(rounding) { - case 0: goto accept_dig; - case 2: goto keep_dig; - } -#endif /*Honor_FLT_ROUNDS*/ - if (j1 > 0) { - b = lshift(b, 1); - j1 = cmp(b, S); - if ((j1 > 0 || j1 == 0 && dig & 1) - && dig++ == '9') - goto round_9_up; - } - accept_dig: - *s++ = dig; - goto ret; - } - if (j1 > 0) { -#ifdef Honor_FLT_ROUNDS - if (!rounding) - goto accept_dig; -#endif - if (dig == '9') { /* possible if i == 1 */ - round_9_up: - *s++ = '9'; - goto roundoff; - } - *s++ = dig + 1; - goto ret; - } -#ifdef Honor_FLT_ROUNDS - keep_dig: -#endif - *s++ = dig; - if (i == ilim) - break; - b = multadd(b, 10, 0); - if (mlo == mhi) - mlo = mhi = multadd(mhi, 10, 0); - else { - mlo = multadd(mlo, 10, 0); - mhi = multadd(mhi, 10, 0); - } - } - } - else - for(i = 1;; i++) { - *s++ = dig = quorem(b,S) + '0'; - if (!b->x[0] && b->wds <= 1) { -#ifdef SET_INEXACT - inexact = 0; -#endif - goto ret; - } - if (i >= ilim) - break; - b = multadd(b, 10, 0); - } - - /* Round off last digit */ - -#ifdef Honor_FLT_ROUNDS - switch(rounding) { - case 0: goto trimzeros; - case 2: goto roundoff; - } -#endif - b = lshift(b, 1); - j = cmp(b, S); - if (j > 0 || j == 0 && dig & 1) { - roundoff: - while(*--s == '9') - if (s == s0) { - k++; - *s++ = '1'; - goto ret; - } - ++*s++; - } - else { - trimzeros: - while(*--s == '0'); - s++; - } - ret: - Bfree(S); - if (mhi) { - if (mlo && mlo != mhi) - Bfree(mlo); - Bfree(mhi); - } - ret1: -#ifdef SET_INEXACT - if (inexact) { - if (!oldinexact) { - word0(d) = Exp_1 + (70 << Exp_shift); - word1(d) = 0; - dval(d) += 1.; - } - } - else if (!oldinexact) - clear_inexact(); -#endif - Bfree(b); - *s = 0; - *decpt = k + 1; - if (rve) - *rve = s; - return s0; - } diff --git a/gdtoa/g_Qfmt.c b/gdtoa/g_Qfmt.c deleted file mode 100644 index 2b9b3679..00000000 --- a/gdtoa/g_Qfmt.c +++ /dev/null @@ -1,114 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#define _3 3 -#endif -#ifdef IEEE_8087 -#define _0 3 -#define _1 2 -#define _2 1 -#define _3 0 -#endif - - char* -#ifdef KR_headers -g_Qfmt(buf, V, ndig, bufsize) char *buf; char *V; int ndig; unsigned bufsize; -#else -g_Qfmt(char *buf, void *V, int ndig, unsigned bufsize) -#endif -{ - static FPI fpi = { 113, 1-16383-113+1, 32766 - 16383 - 113 + 1, 1, 0 }; - char *b, *s, *se; - ULong bits[4], *L, sign; - int decpt, ex, i, mode; - - if (ndig < 0) - ndig = 0; - if (bufsize < ndig + 10) - return 0; - - L = (ULong*)V; - sign = L[_0] & 0x80000000L; - bits[3] = L[_0] & 0xffff; - bits[2] = L[_1]; - bits[1] = L[_2]; - bits[0] = L[_3]; - b = buf; - if ( (ex = (L[_0] & 0x7fff0000L) >> 16) !=0) { - if (ex == 0x7fff) { - /* Infinity or NaN */ - if (bits[0] | bits[1] | bits[2] | bits[3]) - b = strcp(b, "NaN"); - else { - b = buf; - if (sign) - *b++ = '-'; - b = strcp(b, "Infinity"); - } - return b; - } - i = STRTOG_Normal; - bits[3] |= 0x10000; - } - else if (bits[0] | bits[1] | bits[2] | bits[3]) { - i = STRTOG_Denormal; - ex = 1; - } - else { -#ifndef IGNORE_ZERO_SIGN - if (sign) - *b++ = '-'; -#endif - *b++ = '0'; - *b = 0; - return b; - } - ex -= 0x3fff + 112; - mode = 2; - if (ndig <= 0) { - if (bufsize < 48) - return 0; - mode = 0; - } - s = gdtoa(&fpi, ex, bits, &i, mode, ndig, &decpt, &se); - return g__fmt(buf, s, se, decpt, sign); - } diff --git a/gdtoa/g__fmt.c b/gdtoa/g__fmt.c deleted file mode 100644 index 021ecfb5..00000000 --- a/gdtoa/g__fmt.c +++ /dev/null @@ -1,99 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#ifdef USE_LOCALE -#include "locale.h" -#endif - - char * -#ifdef KR_headers -g__fmt(b, s, se, decpt, sign) char *b; char *s; char *se; int decpt; ULong sign; -#else -g__fmt(char *b, char *s, char *se, int decpt, ULong sign) -#endif -{ - int i, j, k; - char *s0 = s; -#ifdef USE_LOCALE - char decimalpoint = *localeconv()->decimal_point; -#else -#define decimalpoint '.' -#endif - if (sign) - *b++ = '-'; - if (decpt <= -4 || decpt > se - s + 5) { - *b++ = *s++; - if (*s) { - *b++ = decimalpoint; - while((*b = *s++) !=0) - b++; - } - *b++ = 'e'; - /* sprintf(b, "%+.2d", decpt - 1); */ - if (--decpt < 0) { - *b++ = '-'; - decpt = -decpt; - } - else - *b++ = '+'; - for(j = 2, k = 10; 10*k <= decpt; j++, k *= 10){} - for(;;) { - i = decpt / k; - *b++ = i + '0'; - if (--j <= 0) - break; - decpt -= i*k; - decpt *= 10; - } - *b = 0; - } - else if (decpt <= 0) { - *b++ = decimalpoint; - for(; decpt < 0; decpt++) - *b++ = '0'; - while((*b = *s++) !=0) - b++; - } - else { - while((*b = *s++) !=0) { - b++; - if (--decpt == 0 && *s) - *b++ = decimalpoint; - } - for(; decpt > 0; decpt--) - *b++ = '0'; - *b = 0; - } - freedtoa(s0); - return b; - } diff --git a/gdtoa/g_ddfmt.c b/gdtoa/g_ddfmt.c deleted file mode 100644 index 7fc30578..00000000 --- a/gdtoa/g_ddfmt.c +++ /dev/null @@ -1,154 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg@acm.org). */ - -#include "gdtoaimp.h" -#include <string.h> - - char * -#ifdef KR_headers -g_ddfmt(buf, dd, ndig, bufsize) char *buf; double *dd; int ndig; unsigned bufsize; -#else -g_ddfmt(char *buf, double *dd, int ndig, unsigned bufsize) -#endif -{ - FPI fpi; - char *b, *s, *se; - ULong *L, bits0[4], *bits, *zx; - int bx, by, decpt, ex, ey, i, j, mode; - Bigint *x, *y, *z; - double ddx[2]; - - if (bufsize < 10 || bufsize < ndig + 8) - return 0; - - L = (ULong*)dd; - if ((L[_0] & 0x7ff00000L) == 0x7ff00000L) { - /* Infinity or NaN */ - if (L[_0] & 0xfffff || L[_1]) { - nanret: - return strcp(buf, "NaN"); - } - if ((L[2+_0] & 0x7ff00000) == 0x7ff00000) { - if (L[2+_0] & 0xfffff || L[2+_1]) - goto nanret; - if ((L[_0] ^ L[2+_0]) & 0x80000000L) - goto nanret; /* Infinity - Infinity */ - } - infret: - b = buf; - if (L[_0] & 0x80000000L) - *b++ = '-'; - return strcp(b, "Infinity"); - } - if ((L[2+_0] & 0x7ff00000) == 0x7ff00000) { - L += 2; - if (L[_0] & 0xfffff || L[_1]) - goto nanret; - goto infret; - } - if (dd[0] + dd[1] == 0.) { - b = buf; -#ifndef IGNORE_ZERO_SIGN - if (L[_0] & L[2+_0] & 0x80000000L) - *b++ = '-'; -#endif - *b++ = '0'; - *b = 0; - return b; - } - if ((L[_0] & 0x7ff00000L) < (L[2+_0] & 0x7ff00000L)) { - ddx[1] = dd[0]; - ddx[0] = dd[1]; - dd = ddx; - L = (ULong*)dd; - } - z = d2b(dd[0], &ex, &bx); - if (dd[1] == 0.) - goto no_y; - x = z; - y = d2b(dd[1], &ey, &by); - if ( (i = ex - ey) !=0) { - if (i > 0) { - x = lshift(x, i); - ex = ey; - } - else - y = lshift(y, -i); - } - if ((L[_0] ^ L[2+_0]) & 0x80000000L) { - z = diff(x, y); - if (L[_0] & 0x80000000L) - z->sign = 1 - z->sign; - } - else { - z = sum(x, y); - if (L[_0] & 0x80000000L) - z->sign = 1; - } - Bfree(x); - Bfree(y); - no_y: - bits = zx = z->x; - for(i = 0; !*zx; zx++) - i += 32; - i += lo0bits(zx); - if (i) { - rshift(z, i); - ex += i; - } - fpi.nbits = z->wds * 32 - hi0bits(z->x[j = z->wds-1]); - if (fpi.nbits < 106) { - fpi.nbits = 106; - if (j < 3) { - for(i = 0; i <= j; i++) - bits0[i] = bits[i]; - while(i < 4) - bits0[i++] = 0; - bits = bits0; - } - } - mode = 2; - if (ndig <= 0) { - if (bufsize < (int)(fpi.nbits * .301029995664) + 10) { - Bfree(z); - return 0; - } - mode = 0; - } - fpi.emin = 1-1023-53+1; - fpi.emax = 2046-1023-106+1; - fpi.rounding = FPI_Round_near; - fpi.sudden_underflow = 0; - i = STRTOG_Normal; - s = gdtoa(&fpi, ex, bits, &i, mode, ndig, &decpt, &se); - b = g__fmt(buf, s, se, decpt, z->sign); - Bfree(z); - return b; - } diff --git a/gdtoa/g_dfmt.c b/gdtoa/g_dfmt.c deleted file mode 100644 index db2636f6..00000000 --- a/gdtoa/g_dfmt.c +++ /dev/null @@ -1,89 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - char* -#ifdef KR_headers -g_dfmt(buf, d, ndig, bufsize) char *buf; double *d; int ndig; unsigned bufsize; -#else -g_dfmt(char *buf, double *d, int ndig, unsigned bufsize) -#endif -{ - static FPI fpi = { 53, 1-1023-53+1, 2046-1023-53+1, 1, 0 }; - char *b, *s, *se; - ULong bits[2], *L, sign; - int decpt, ex, i, mode; - - if (ndig < 0) - ndig = 0; - if (bufsize < ndig + 10) - return 0; - - L = (ULong*)d; - sign = L[_0] & 0x80000000L; - if ((L[_0] & 0x7ff00000) == 0x7ff00000) { - /* Infinity or NaN */ - if (L[_0] & 0xfffff || L[_1]) { - return strcp(buf, "NaN"); - } - b = buf; - if (sign) - *b++ = '-'; - return strcp(b, "Infinity"); - } - if (L[_1] == 0 && (L[_0] ^ sign) == 0 /*d == 0.*/) { - b = buf; -#ifndef IGNORE_ZERO_SIGN - if (L[_0] & 0x80000000L) - *b++ = '-'; -#endif - *b++ = '0'; - *b = 0; - return b; - } - bits[0] = L[_1]; - bits[1] = L[_0] & 0xfffff; - if ( (ex = (L[_0] >> 20) & 0x7ff) !=0) - bits[1] |= 0x100000; - else - ex = 1; - ex -= 0x3ff + 52; - mode = 2; - if (ndig <= 0) { - if (bufsize < 25) - return 0; - mode = 0; - } - i = STRTOG_Normal; - s = gdtoa(&fpi, ex, bits, &i, mode, ndig, &decpt, &se); - return g__fmt(buf, s, se, decpt, sign); - } diff --git a/gdtoa/g_ffmt.c b/gdtoa/g_ffmt.c deleted file mode 100644 index 612adfae..00000000 --- a/gdtoa/g_ffmt.c +++ /dev/null @@ -1,88 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - char* -#ifdef KR_headers -g_ffmt(buf, f, ndig, bufsize) char *buf; float *f; int ndig; unsigned bufsize; -#else -g_ffmt(char *buf, float *f, int ndig, unsigned bufsize) -#endif -{ - static FPI fpi = { 24, 1-127-24+1, 254-127-24+1, 1, 0 }; - char *b, *s, *se; - ULong bits[1], *L, sign; - int decpt, ex, i, mode; - - if (ndig < 0) - ndig = 0; - if (bufsize < ndig + 10) - return 0; - - L = (ULong*)f; - sign = L[0] & 0x80000000L; - if ((L[0] & 0x7f800000) == 0x7f800000) { - /* Infinity or NaN */ - if (L[0] & 0x7fffff) { - return strcp(buf, "NaN"); - } - b = buf; - if (sign) - *b++ = '-'; - return strcp(b, "Infinity"); - } - if (*f == 0.) { - b = buf; -#ifndef IGNORE_ZERO_SIGN - if (L[0] & 0x80000000L) - *b++ = '-'; -#endif - *b++ = '0'; - *b = 0; - return b; - } - bits[0] = L[0] & 0x7fffff; - if ( (ex = (L[0] >> 23) & 0xff) !=0) - bits[0] |= 0x800000; - else - ex = 1; - ex -= 0x7f + 23; - mode = 2; - if (ndig <= 0) { - if (bufsize < 16) - return 0; - mode = 0; - } - i = STRTOG_Normal; - s = gdtoa(&fpi, ex, bits, &i, mode, ndig, &decpt, &se); - return g__fmt(buf, s, se, decpt, sign); - } diff --git a/gdtoa/g_xLfmt.c b/gdtoa/g_xLfmt.c deleted file mode 100644 index 1bbc6e21..00000000 --- a/gdtoa/g_xLfmt.c +++ /dev/null @@ -1,108 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#endif -#ifdef IEEE_8087 -#define _0 2 -#define _1 1 -#define _2 0 -#endif - - char* -#ifdef KR_headers -g_xLfmt(buf, V, ndig, bufsize) char *buf; char *V; int ndig; unsigned bufsize; -#else -g_xLfmt(char *buf, void *V, int ndig, unsigned bufsize) -#endif -{ - static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, 0 }; - char *b, *s, *se; - ULong bits[2], *L, sign; - int decpt, ex, i, mode; - - if (ndig < 0) - ndig = 0; - if (bufsize < ndig + 10) - return 0; - - L = (ULong*)V; - sign = L[_0] & 0x80000000L; - bits[1] = L[_1]; - bits[0] = L[_2]; - if ( (ex = (L[_0] >> 16) & 0x7fff) !=0) { - if (ex == 0x7fff) { - /* Infinity or NaN */ - if (bits[0] | bits[1]) - b = strcp(buf, "NaN"); - else { - b = buf; - if (sign) - *b++ = '-'; - b = strcp(b, "Infinity"); - } - return b; - } - i = STRTOG_Normal; - } - else if (bits[0] | bits[1]) { - i = STRTOG_Denormal; - } - else { - b = buf; -#ifndef IGNORE_ZERO_SIGN - if (sign) - *b++ = '-'; -#endif - *b++ = '0'; - *b = 0; - return b; - } - ex -= 0x3fff + 63; - mode = 2; - if (ndig <= 0) { - if (bufsize < 32) - return 0; - mode = 0; - } - s = gdtoa(&fpi, ex, bits, &i, mode, ndig, &decpt, &se); - return g__fmt(buf, s, se, decpt, sign); - } diff --git a/gdtoa/g_xfmt.c b/gdtoa/g_xfmt.c deleted file mode 100644 index 47a862d6..00000000 --- a/gdtoa/g_xfmt.c +++ /dev/null @@ -1,114 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#define _3 3 -#define _4 4 -#endif -#ifdef IEEE_8087 -#define _0 4 -#define _1 3 -#define _2 2 -#define _3 1 -#define _4 0 -#endif - - char* -#ifdef KR_headers -g_xfmt(buf, V, ndig, bufsize) char *buf; char *V; int ndig; unsigned bufsize; -#else -g_xfmt(char *buf, void *V, int ndig, unsigned bufsize) -#endif -{ - static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, 0 }; - char *b, *s, *se; - ULong bits[2], sign; - UShort *L; - int decpt, ex, i, mode; - - if (ndig < 0) - ndig = 0; - if (bufsize < ndig + 10) - return 0; - - L = (UShort *)V; - sign = L[_0] & 0x8000; - bits[1] = (L[_1] << 16) | L[_2]; - bits[0] = (L[_3] << 16) | L[_4]; - if ( (ex = L[_0] & 0x7fff) !=0) { - if (ex == 0x7fff) { - /* Infinity or NaN */ - if (bits[0] | bits[1]) - b = strcp(buf, "NaN"); - else { - b = buf; - if (sign) - *b++ = '-'; - b = strcp(b, "Infinity"); - } - return b; - } - i = STRTOG_Normal; - } - else if (bits[0] | bits[1]) { - i = STRTOG_Denormal; - ex = 1; - } - else { - b = buf; -#ifndef IGNORE_ZERO_SIGN - if (sign) - *b++ = '-'; -#endif - *b++ = '0'; - *b = 0; - return b; - } - ex -= 0x3fff + 63; - mode = 2; - if (ndig <= 0) { - if (bufsize < 32) - return 0; - mode = 0; - } - s = gdtoa(&fpi, ex, bits, &i, mode, ndig, &decpt, &se); - return g__fmt(buf, s, se, decpt, sign); - } diff --git a/gdtoa/gdtoa.c b/gdtoa/gdtoa.c deleted file mode 100644 index 8ff8cc58..00000000 --- a/gdtoa/gdtoa.c +++ /dev/null @@ -1,758 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 1999 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - static Bigint * -#ifdef KR_headers -bitstob(bits, nbits, bbits) ULong *bits; int nbits; int *bbits; -#else -bitstob(ULong *bits, int nbits, int *bbits) -#endif -{ - int i, k; - Bigint *b; - ULong *be, *x, *x0; - - i = ULbits; - k = 0; - while(i < nbits) { - i <<= 1; - k++; - } -#ifndef Pack_32 - if (!k) - k = 1; -#endif - b = Balloc(k); - be = bits + ((nbits - 1) >> kshift); - x = x0 = b->x; - do { - *x++ = *bits & ALL_ON; -#ifdef Pack_16 - *x++ = (*bits >> 16) & ALL_ON; -#endif - } while(++bits <= be); - i = x - x0; - while(!x0[--i]) - if (!i) { - b->wds = 0; - *bbits = 0; - goto ret; - } - b->wds = i + 1; - *bbits = i*ULbits + 32 - hi0bits(b->x[i]); - ret: - return b; - } - -/* dtoa for IEEE arithmetic (dmg): convert double to ASCII string. - * - * Inspired by "How to Print Floating-Point Numbers Accurately" by - * Guy L. Steele, Jr. and Jon L. White [Proc. ACM SIGPLAN '90, pp. 112-126]. - * - * Modifications: - * 1. Rather than iterating, we use a simple numeric overestimate - * to determine k = floor(log10(d)). We scale relevant - * quantities using O(log2(k)) rather than O(k) multiplications. - * 2. For some modes > 2 (corresponding to ecvt and fcvt), we don't - * try to generate digits strictly left to right. Instead, we - * compute with fewer bits and propagate the carry if necessary - * when rounding the final digit up. This is often faster. - * 3. Under the assumption that input will be rounded nearest, - * mode 0 renders 1e23 as 1e23 rather than 9.999999999999999e22. - * That is, we allow equality in stopping tests when the - * round-nearest rule will give the same floating-point value - * as would satisfaction of the stopping test with strict - * inequality. - * 4. We remove common factors of powers of 2 from relevant - * quantities. - * 5. When converting floating-point integers less than 1e16, - * we use floating-point arithmetic rather than resorting - * to multiple-precision integers. - * 6. When asked to produce fewer than 15 digits, we first try - * to get by with floating-point arithmetic; we resort to - * multiple-precision integer arithmetic only if we cannot - * guarantee that the floating-point calculation has given - * the correctly rounded result. For k requested digits and - * "uniformly" distributed input, the probability is - * something like 10^(k-15) that we must resort to the Long - * calculation. - */ - - char * -gdtoa -#ifdef KR_headers - (fpi, be, bits, kindp, mode, ndigits, decpt, rve) - FPI *fpi; int be; ULong *bits; - int *kindp, mode, ndigits, *decpt; char **rve; -#else - (FPI *fpi, int be, ULong *bits, int *kindp, int mode, int ndigits, int *decpt, char **rve) -#endif -{ - /* Arguments ndigits and decpt are similar to the second and third - arguments of ecvt and fcvt; trailing zeros are suppressed from - the returned string. If not null, *rve is set to point - to the end of the return value. If d is +-Infinity or NaN, - then *decpt is set to 9999. - - mode: - 0 ==> shortest string that yields d when read in - and rounded to nearest. - 1 ==> like 0, but with Steele & White stopping rule; - e.g. with IEEE P754 arithmetic , mode 0 gives - 1e23 whereas mode 1 gives 9.999999999999999e22. - 2 ==> max(1,ndigits) significant digits. This gives a - return value similar to that of ecvt, except - that trailing zeros are suppressed. - 3 ==> through ndigits past the decimal point. This - gives a return value similar to that from fcvt, - except that trailing zeros are suppressed, and - ndigits can be negative. - 4-9 should give the same return values as 2-3, i.e., - 4 <= mode <= 9 ==> same return as mode - 2 + (mode & 1). These modes are mainly for - debugging; often they run slower but sometimes - faster than modes 2-3. - 4,5,8,9 ==> left-to-right digit generation. - 6-9 ==> don't try fast floating-point estimate - (if applicable). - - Values of mode other than 0-9 are treated as mode 0. - - Sufficient space is allocated to the return value - to hold the suppressed trailing zeros. - */ - - int bbits, b2, b5, be0, dig, i, ieps, ilim, ilim0, ilim1, inex; - int j, j1, k, k0, k_check, kind, leftright, m2, m5, nbits; - int rdir, s2, s5, spec_case, try_quick; - Long L; - Bigint *b, *b1, *delta, *mlo, *mhi, *mhi1, *S; - double d, d2, ds, eps; - char *s, *s0; - -#ifndef MULTIPLE_THREADS - if (dtoa_result) { - freedtoa(dtoa_result); - dtoa_result = 0; - } -#endif - inex = 0; - kind = *kindp &= ~STRTOG_Inexact; - switch(kind & STRTOG_Retmask) { - case STRTOG_Zero: - goto ret_zero; - case STRTOG_Normal: - case STRTOG_Denormal: - break; - case STRTOG_Infinite: - *decpt = -32768; - return nrv_alloc("Infinity", rve, 8); - case STRTOG_NaN: - *decpt = -32768; - return nrv_alloc("NaN", rve, 3); - default: - return 0; - } - b = bitstob(bits, nbits = fpi->nbits, &bbits); - be0 = be; - if ( (i = trailz(b)) !=0) { - rshift(b, i); - be += i; - bbits -= i; - } - if (!b->wds) { - Bfree(b); - ret_zero: - *decpt = 1; - return nrv_alloc("0", rve, 1); - } - - dval(d) = b2d(b, &i); - i = be + bbits - 1; - word0(d) &= Frac_mask1; - word0(d) |= Exp_11; -#ifdef IBM - if ( (j = 11 - hi0bits(word0(d) & Frac_mask)) !=0) - dval(d) /= 1 << j; -#endif - - /* log(x) ~=~ log(1.5) + (x-1.5)/1.5 - * log10(x) = log(x) / log(10) - * ~=~ log(1.5)/log(10) + (x-1.5)/(1.5*log(10)) - * log10(d) = (i-Bias)*log(2)/log(10) + log10(d2) - * - * This suggests computing an approximation k to log10(d) by - * - * k = (i - Bias)*0.301029995663981 - * + ( (d2-1.5)*0.289529654602168 + 0.176091259055681 ); - * - * We want k to be too large rather than too small. - * The error in the first-order Taylor series approximation - * is in our favor, so we just round up the constant enough - * to compensate for any error in the multiplication of - * (i - Bias) by 0.301029995663981; since |i - Bias| <= 1077, - * and 1077 * 0.30103 * 2^-52 ~=~ 7.2e-14, - * adding 1e-13 to the constant term more than suffices. - * Hence we adjust the constant term to 0.1760912590558. - * (We could get a more accurate k by invoking log10, - * but this is probably not worthwhile.) - */ -#ifdef IBM - i <<= 2; - i += j; -#endif - ds = (dval(d)-1.5)*0.289529654602168 + 0.1760912590558 + i*0.301029995663981; - - /* correct assumption about exponent range */ - if ((j = i) < 0) - j = -j; - if ((j -= 1077) > 0) - ds += j * 7e-17; - - k = (int)ds; - if (ds < 0. && ds != k) - k--; /* want k = floor(ds) */ - k_check = 1; -#ifdef IBM - j = be + bbits - 1; - if ( (j1 = j & 3) !=0) - dval(d) *= 1 << j1; - word0(d) += j << Exp_shift - 2 & Exp_mask; -#else - word0(d) += (be + bbits - 1) << Exp_shift; -#endif - if (k >= 0 && k <= Ten_pmax) { - if (dval(d) < tens[k]) - k--; - k_check = 0; - } - j = bbits - i - 1; - if (j >= 0) { - b2 = 0; - s2 = j; - } - else { - b2 = -j; - s2 = 0; - } - if (k >= 0) { - b5 = 0; - s5 = k; - s2 += k; - } - else { - b2 -= k; - b5 = -k; - s5 = 0; - } - if (mode < 0 || mode > 9) - mode = 0; - try_quick = 1; - if (mode > 5) { - mode -= 4; - try_quick = 0; - } - leftright = 1; - switch(mode) { - case 0: - case 1: - ilim = ilim1 = -1; - i = (int)(nbits * .30103) + 3; - ndigits = 0; - break; - case 2: - leftright = 0; - /* no break */ - case 4: - if (ndigits <= 0) - ndigits = 1; - ilim = ilim1 = i = ndigits; - break; - case 3: - leftright = 0; - /* no break */ - case 5: - i = ndigits + k + 1; - ilim = i; - ilim1 = i - 1; - if (i <= 0) - i = 1; - } - s = s0 = rv_alloc(i); - - if ( (rdir = fpi->rounding - 1) !=0) { - if (rdir < 0) - rdir = 2; - if (kind & STRTOG_Neg) - rdir = 3 - rdir; - } - - /* Now rdir = 0 ==> round near, 1 ==> round up, 2 ==> round down. */ - - if (ilim >= 0 && ilim <= Quick_max && try_quick && !rdir -#ifndef IMPRECISE_INEXACT - && k == 0 -#endif - ) { - - /* Try to get by with floating-point arithmetic. */ - - i = 0; - d2 = dval(d); -#ifdef IBM - if ( (j = 11 - hi0bits(word0(d) & Frac_mask)) !=0) - dval(d) /= 1 << j; -#endif - k0 = k; - ilim0 = ilim; - ieps = 2; /* conservative */ - if (k > 0) { - ds = tens[k&0xf]; - j = k >> 4; - if (j & Bletch) { - /* prevent overflows */ - j &= Bletch - 1; - dval(d) /= bigtens[n_bigtens-1]; - ieps++; - } - for(; j; j >>= 1, i++) - if (j & 1) { - ieps++; - ds *= bigtens[i]; - } - } - else { - ds = 1.; - if ( (j1 = -k) !=0) { - dval(d) *= tens[j1 & 0xf]; - for(j = j1 >> 4; j; j >>= 1, i++) - if (j & 1) { - ieps++; - dval(d) *= bigtens[i]; - } - } - } - if (k_check && dval(d) < 1. && ilim > 0) { - if (ilim1 <= 0) - goto fast_failed; - ilim = ilim1; - k--; - dval(d) *= 10.; - ieps++; - } - dval(eps) = ieps*dval(d) + 7.; - word0(eps) -= (P-1)*Exp_msk1; - if (ilim == 0) { - S = mhi = 0; - dval(d) -= 5.; - if (dval(d) > dval(eps)) - goto one_digit; - if (dval(d) < -dval(eps)) - goto no_digits; - goto fast_failed; - } -#ifndef No_leftright - if (leftright) { - /* Use Steele & White method of only - * generating digits needed. - */ - dval(eps) = ds*0.5/tens[ilim-1] - dval(eps); - for(i = 0;;) { - L = (Long)(dval(d)/ds); - dval(d) -= L*ds; - *s++ = '0' + (int)L; - if (dval(d) < dval(eps)) { - if (dval(d)) - inex = STRTOG_Inexlo; - goto ret1; - } - if (ds - dval(d) < dval(eps)) - goto bump_up; - if (++i >= ilim) - break; - dval(eps) *= 10.; - dval(d) *= 10.; - } - } - else { -#endif - /* Generate ilim digits, then fix them up. */ - dval(eps) *= tens[ilim-1]; - for(i = 1;; i++, dval(d) *= 10.) { - if ( (L = (Long)(dval(d)/ds)) !=0) - dval(d) -= L*ds; - *s++ = '0' + (int)L; - if (i == ilim) { - ds *= 0.5; - if (dval(d) > ds + dval(eps)) - goto bump_up; - else if (dval(d) < ds - dval(eps)) { - while(*--s == '0'){} - s++; - if (dval(d)) - inex = STRTOG_Inexlo; - goto ret1; - } - break; - } - } -#ifndef No_leftright - } -#endif - fast_failed: - s = s0; - dval(d) = d2; - k = k0; - ilim = ilim0; - } - - /* Do we have a "small" integer? */ - - if (be >= 0 && k <= Int_max) { - /* Yes. */ - ds = tens[k]; - if (ndigits < 0 && ilim <= 0) { - S = mhi = 0; - if (ilim < 0 || dval(d) <= 5*ds) - goto no_digits; - goto one_digit; - } - for(i = 1;; i++, dval(d) *= 10.) { - L = dval(d) / ds; - dval(d) -= L*ds; -#ifdef Check_FLT_ROUNDS - /* If FLT_ROUNDS == 2, L will usually be high by 1 */ - if (dval(d) < 0) { - L--; - dval(d) += ds; - } -#endif - *s++ = '0' + (int)L; - if (dval(d) == 0.) - break; - if (i == ilim) { - if (rdir) { - if (rdir == 1) - goto bump_up; - inex = STRTOG_Inexlo; - goto ret1; - } - dval(d) += dval(d); - if (dval(d) > ds || dval(d) == ds && L & 1) { - bump_up: - inex = STRTOG_Inexhi; - while(*--s == '9') - if (s == s0) { - k++; - *s = '0'; - break; - } - ++*s++; - } - else - inex = STRTOG_Inexlo; - break; - } - } - goto ret1; - } - - m2 = b2; - m5 = b5; - mhi = mlo = 0; - if (leftright) { - if (mode < 2) { - i = nbits - bbits; - if (be - i++ < fpi->emin) - /* denormal */ - i = be - fpi->emin + 1; - } - else { - j = ilim - 1; - if (m5 >= j) - m5 -= j; - else { - s5 += j -= m5; - b5 += j; - m5 = 0; - } - if ((i = ilim) < 0) { - m2 -= i; - i = 0; - } - } - b2 += i; - s2 += i; - mhi = i2b(1); - } - if (m2 > 0 && s2 > 0) { - i = m2 < s2 ? m2 : s2; - b2 -= i; - m2 -= i; - s2 -= i; - } - if (b5 > 0) { - if (leftright) { - if (m5 > 0) { - mhi = pow5mult(mhi, m5); - b1 = mult(mhi, b); - Bfree(b); - b = b1; - } - if ( (j = b5 - m5) !=0) - b = pow5mult(b, j); - } - else - b = pow5mult(b, b5); - } - S = i2b(1); - if (s5 > 0) - S = pow5mult(S, s5); - - /* Check for special case that d is a normalized power of 2. */ - - spec_case = 0; - if (mode < 2) { - if (bbits == 1 && be0 > fpi->emin + 1) { - /* The special case */ - b2++; - s2++; - spec_case = 1; - } - } - - /* Arrange for convenient computation of quotients: - * shift left if necessary so divisor has 4 leading 0 bits. - * - * Perhaps we should just compute leading 28 bits of S once - * and for all and pass them and a shift to quorem, so it - * can do shifts and ors to compute the numerator for q. - */ -#ifdef Pack_32 - if ( (i = ((s5 ? 32 - hi0bits(S->x[S->wds-1]) : 1) + s2) & 0x1f) !=0) - i = 32 - i; -#else - if ( (i = ((s5 ? 32 - hi0bits(S->x[S->wds-1]) : 1) + s2) & 0xf) !=0) - i = 16 - i; -#endif - if (i > 4) { - i -= 4; - b2 += i; - m2 += i; - s2 += i; - } - else if (i < 4) { - i += 28; - b2 += i; - m2 += i; - s2 += i; - } - if (b2 > 0) - b = lshift(b, b2); - if (s2 > 0) - S = lshift(S, s2); - if (k_check) { - if (cmp(b,S) < 0) { - k--; - b = multadd(b, 10, 0); /* we botched the k estimate */ - if (leftright) - mhi = multadd(mhi, 10, 0); - ilim = ilim1; - } - } - if (ilim <= 0 && mode > 2) { - if (ilim < 0 || cmp(b,S = multadd(S,5,0)) <= 0) { - /* no digits, fcvt style */ - no_digits: - k = -1 - ndigits; - inex = STRTOG_Inexlo; - goto ret; - } - one_digit: - inex = STRTOG_Inexhi; - *s++ = '1'; - k++; - goto ret; - } - if (leftright) { - if (m2 > 0) - mhi = lshift(mhi, m2); - - /* Compute mlo -- check for special case - * that d is a normalized power of 2. - */ - - mlo = mhi; - if (spec_case) { - mhi = Balloc(mhi->k); - Bcopy(mhi, mlo); - mhi = lshift(mhi, 1); - } - - for(i = 1;;i++) { - dig = quorem(b,S) + '0'; - /* Do we yet have the shortest decimal string - * that will round to d? - */ - j = cmp(b, mlo); - delta = diff(S, mhi); - j1 = delta->sign ? 1 : cmp(b, delta); - Bfree(delta); -#ifndef ROUND_BIASED - if (j1 == 0 && !mode && !(bits[0] & 1) && !rdir) { - if (dig == '9') - goto round_9_up; - if (j <= 0) { - if (b->wds > 1 || b->x[0]) - inex = STRTOG_Inexlo; - } - else { - dig++; - inex = STRTOG_Inexhi; - } - *s++ = dig; - goto ret; - } -#endif - if (j < 0 || j == 0 && !mode -#ifndef ROUND_BIASED - && !(bits[0] & 1) -#endif - ) { - if (rdir && (b->wds > 1 || b->x[0])) { - if (rdir == 2) { - inex = STRTOG_Inexlo; - goto accept; - } - while (cmp(S,mhi) > 0) { - *s++ = dig; - mhi1 = multadd(mhi, 10, 0); - if (mlo == mhi) - mlo = mhi1; - mhi = mhi1; - b = multadd(b, 10, 0); - dig = quorem(b,S) + '0'; - } - if (dig++ == '9') - goto round_9_up; - inex = STRTOG_Inexhi; - goto accept; - } - if (j1 > 0) { - b = lshift(b, 1); - j1 = cmp(b, S); - if ((j1 > 0 || j1 == 0 && dig & 1) - && dig++ == '9') - goto round_9_up; - inex = STRTOG_Inexhi; - } - if (b->wds > 1 || b->x[0]) - inex = STRTOG_Inexlo; - accept: - *s++ = dig; - goto ret; - } - if (j1 > 0 && rdir != 2) { - if (dig == '9') { /* possible if i == 1 */ - round_9_up: - *s++ = '9'; - inex = STRTOG_Inexhi; - goto roundoff; - } - inex = STRTOG_Inexhi; - *s++ = dig + 1; - goto ret; - } - *s++ = dig; - if (i == ilim) - break; - b = multadd(b, 10, 0); - if (mlo == mhi) - mlo = mhi = multadd(mhi, 10, 0); - else { - mlo = multadd(mlo, 10, 0); - mhi = multadd(mhi, 10, 0); - } - } - } - else - for(i = 1;; i++) { - *s++ = dig = quorem(b,S) + '0'; - if (i >= ilim) - break; - b = multadd(b, 10, 0); - } - - /* Round off last digit */ - - if (rdir) { - if (rdir == 2 || b->wds <= 1 && !b->x[0]) - goto chopzeros; - goto roundoff; - } - b = lshift(b, 1); - j = cmp(b, S); - if (j > 0 || j == 0 && dig & 1) { - roundoff: - inex = STRTOG_Inexhi; - while(*--s == '9') - if (s == s0) { - k++; - *s++ = '1'; - goto ret; - } - ++*s++; - } - else { - chopzeros: - if (b->wds > 1 || b->x[0]) - inex = STRTOG_Inexlo; - while(*--s == '0'){} - s++; - } - ret: - Bfree(S); - if (mhi) { - if (mlo && mlo != mhi) - Bfree(mlo); - Bfree(mhi); - } - ret1: - Bfree(b); - *s = 0; - *decpt = k + 1; - if (rve) - *rve = s; - *kindp |= inex; - return s0; - } diff --git a/gdtoa/gdtoa.h b/gdtoa/gdtoa.h deleted file mode 100644 index ee6a9e53..00000000 --- a/gdtoa/gdtoa.h +++ /dev/null @@ -1,153 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#ifndef GDTOA_H_INCLUDED -#define GDTOA_H_INCLUDED - -#include "arith.h" - -#ifndef Long -#define Long long -#endif -#ifndef ULong -typedef unsigned Long ULong; -#endif -#ifndef UShort -typedef unsigned short UShort; -#endif - -#ifndef ANSI -#ifdef KR_headers -#define ANSI(x) () -#define Void /*nothing*/ -#else -#define ANSI(x) x -#define Void void -#endif -#endif /* ANSI */ - -#ifndef CONST -#ifdef KR_headers -#define CONST /* blank */ -#else -#define CONST const -#endif -#endif /* CONST */ - - enum { /* return values from strtodg */ - STRTOG_Zero = 0, - STRTOG_Normal = 1, - STRTOG_Denormal = 2, - STRTOG_Infinite = 3, - STRTOG_NaN = 4, - STRTOG_NaNbits = 5, - STRTOG_NoNumber = 6, - STRTOG_Retmask = 7, - - /* The following may be or-ed into one of the above values. */ - - STRTOG_Neg = 0x08, - STRTOG_Inexlo = 0x10, - STRTOG_Inexhi = 0x20, - STRTOG_Inexact = 0x30, - STRTOG_Underflow= 0x40, - STRTOG_Overflow = 0x80 - }; - - typedef struct -FPI { - int nbits; - int emin; - int emax; - int rounding; - int sudden_underflow; - } FPI; - -enum { /* FPI.rounding values: same as FLT_ROUNDS */ - FPI_Round_zero = 0, - FPI_Round_near = 1, - FPI_Round_up = 2, - FPI_Round_down = 3 - }; - -#ifdef __cplusplus -extern "C" { -#endif - -extern char* dtoa ANSI((double d, int mode, int ndigits, int *decpt, - int *sign, char **rve)); -extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp, - int mode, int ndigits, int *decpt, char **rve)); -extern void freedtoa ANSI((char*)); -extern float strtof ANSI((CONST char *, char **)); -extern double strtod ANSI((CONST char *, char **)); -extern int strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*)); - -extern char* g_ddfmt ANSI((char*, double*, int, unsigned)); -extern char* g_dfmt ANSI((char*, double*, int, unsigned)); -extern char* g_ffmt ANSI((char*, float*, int, unsigned)); -extern char* g_Qfmt ANSI((char*, void*, int, unsigned)); -extern char* g_xfmt ANSI((char*, void*, int, unsigned)); -extern char* g_xLfmt ANSI((char*, void*, int, unsigned)); - -extern int strtoId ANSI((CONST char*, char**, double*, double*)); -extern int strtoIdd ANSI((CONST char*, char**, double*, double*)); -extern int strtoIf ANSI((CONST char*, char**, float*, float*)); -extern int strtoIQ ANSI((CONST char*, char**, void*, void*)); -extern int strtoIx ANSI((CONST char*, char**, void*, void*)); -extern int strtoIxL ANSI((CONST char*, char**, void*, void*)); -extern int strtord ANSI((CONST char*, char**, int, double*)); -extern int strtordd ANSI((CONST char*, char**, int, double*)); -extern int strtorf ANSI((CONST char*, char**, int, float*)); -extern int strtorQ ANSI((CONST char*, char**, int, void*)); -extern int strtorx ANSI((CONST char*, char**, int, void*)); -extern int strtorxL ANSI((CONST char*, char**, int, void*)); -#if 1 -extern int strtodI ANSI((CONST char*, char**, double*)); -extern int strtopd ANSI((CONST char*, char**, double*)); -extern int strtopdd ANSI((CONST char*, char**, double*)); -extern int strtopf ANSI((CONST char*, char**, float*)); -extern int strtopQ ANSI((CONST char*, char**, void*)); -extern int strtopx ANSI((CONST char*, char**, void*)); -extern int strtopxL ANSI((CONST char*, char**, void*)); -#else -#define strtopd(s,se,x) strtord(s,se,1,x) -#define strtopdd(s,se,x) strtordd(s,se,1,x) -#define strtopf(s,se,x) strtorf(s,se,1,x) -#define strtopQ(s,se,x) strtorQ(s,se,1,x) -#define strtopx(s,se,x) strtorx(s,se,1,x) -#define strtopxL(s,se,x) strtorxL(s,se,1,x) -#endif - -#ifdef __cplusplus -} -#endif -#endif /* GDTOA_H_INCLUDED */ diff --git a/gdtoa/gdtoaimp.h b/gdtoa/gdtoaimp.h deleted file mode 100644 index c8b9edfc..00000000 --- a/gdtoa/gdtoaimp.h +++ /dev/null @@ -1,615 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998-2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* This is a variation on dtoa.c that converts arbitary binary - floating-point formats to and from decimal notation. It uses - double-precision arithmetic internally, so there are still - various #ifdefs that adapt the calculations to the native - double-precision arithmetic (any of IEEE, VAX D_floating, - or IBM mainframe arithmetic). - - Please send bug reports to David M. Gay (dmg at acm dot org, - with " at " changed at "@" and " dot " changed to "."). - */ - -/* On a machine with IEEE extended-precision registers, it is - * necessary to specify double-precision (53-bit) rounding precision - * before invoking strtod or dtoa. If the machine uses (the equivalent - * of) Intel 80x87 arithmetic, the call - * _control87(PC_53, MCW_PC); - * does this with many compilers. Whether this or another call is - * appropriate depends on the compiler; for this to work, it may be - * necessary to #include "float.h" or another system-dependent header - * file. - */ - -/* strtod for IEEE-, VAX-, and IBM-arithmetic machines. - * - * This strtod returns a nearest machine number to the input decimal - * string (or sets errno to ERANGE). With IEEE arithmetic, ties are - * broken by the IEEE round-even rule. Otherwise ties are broken by - * biased rounding (add half and chop). - * - * Inspired loosely by William D. Clinger's paper "How to Read Floating - * Point Numbers Accurately" [Proc. ACM SIGPLAN '90, pp. 112-126]. - * - * Modifications: - * - * 1. We only require IEEE, IBM, or VAX double-precision - * arithmetic (not IEEE double-extended). - * 2. We get by with floating-point arithmetic in a case that - * Clinger missed -- when we're computing d * 10^n - * for a small integer d and the integer n is not too - * much larger than 22 (the maximum integer k for which - * we can represent 10^k exactly), we may be able to - * compute (d*10^k) * 10^(e-k) with just one roundoff. - * 3. Rather than a bit-at-a-time adjustment of the binary - * result in the hard case, we use floating-point - * arithmetic to determine the adjustment to within - * one bit; only in really hard cases do we need to - * compute a second residual. - * 4. Because of 3., we don't need a large table of powers of 10 - * for ten-to-e (just some small tables, e.g. of 10^k - * for 0 <= k <= 22). - */ - -/* - * #define IEEE_8087 for IEEE-arithmetic machines where the least - * significant byte has the lowest address. - * #define IEEE_MC68k for IEEE-arithmetic machines where the most - * significant byte has the lowest address. - * #define Long int on machines with 32-bit ints and 64-bit longs. - * #define Sudden_Underflow for IEEE-format machines without gradual - * underflow (i.e., that flush to zero on underflow). - * #define IBM for IBM mainframe-style floating-point arithmetic. - * #define VAX for VAX-style floating-point arithmetic (D_floating). - * #define No_leftright to omit left-right logic in fast floating-point - * computation of dtoa. - * #define Check_FLT_ROUNDS if FLT_ROUNDS can assume the values 2 or 3. - * #define RND_PRODQUOT to use rnd_prod and rnd_quot (assembly routines - * that use extended-precision instructions to compute rounded - * products and quotients) with IBM. - * #define ROUND_BIASED for IEEE-format with biased rounding. - * #define Inaccurate_Divide for IEEE-format with correctly rounded - * products but inaccurate quotients, e.g., for Intel i860. - * #define NO_LONG_LONG on machines that do not have a "long long" - * integer type (of >= 64 bits). On such machines, you can - * #define Just_16 to store 16 bits per 32-bit Long when doing - * high-precision integer arithmetic. Whether this speeds things - * up or slows things down depends on the machine and the number - * being converted. If long long is available and the name is - * something other than "long long", #define Llong to be the name, - * and if "unsigned Llong" does not work as an unsigned version of - * Llong, #define #ULLong to be the corresponding unsigned type. - * #define KR_headers for old-style C function headers. - * #define Bad_float_h if your system lacks a float.h or if it does not - * define some or all of DBL_DIG, DBL_MAX_10_EXP, DBL_MAX_EXP, - * FLT_RADIX, FLT_ROUNDS, and DBL_MAX. - * #define MALLOC your_malloc, where your_malloc(n) acts like malloc(n) - * if memory is available and otherwise does something you deem - * appropriate. If MALLOC is undefined, malloc will be invoked - * directly -- and assumed always to succeed. - * #define Omit_Private_Memory to omit logic (added Jan. 1998) for making - * memory allocations from a private pool of memory when possible. - * When used, the private pool is PRIVATE_MEM bytes long: 2304 bytes, - * unless #defined to be a different length. This default length - * suffices to get rid of MALLOC calls except for unusual cases, - * such as decimal-to-binary conversion of a very long string of - * digits. When converting IEEE double precision values, the - * longest string gdtoa can return is about 751 bytes long. For - * conversions by strtod of strings of 800 digits and all gdtoa - * conversions of IEEE doubles in single-threaded executions with - * 8-byte pointers, PRIVATE_MEM >= 7400 appears to suffice; with - * 4-byte pointers, PRIVATE_MEM >= 7112 appears adequate. - * #define INFNAN_CHECK on IEEE systems to cause strtod to check for - * Infinity and NaN (case insensitively). - * When INFNAN_CHECK is #defined and No_Hex_NaN is not #defined, - * strtodg also accepts (case insensitively) strings of the form - * NaN(x), where x is a string of hexadecimal digits and spaces; - * if there is only one string of hexadecimal digits, it is taken - * for the fraction bits of the resulting NaN; if there are two or - * more strings of hexadecimal digits, each string is assigned - * to the next available sequence of 32-bit words of fractions - * bits (starting with the most significant), right-aligned in - * each sequence. - * #define MULTIPLE_THREADS if the system offers preemptively scheduled - * multiple threads. In this case, you must provide (or suitably - * #define) two locks, acquired by ACQUIRE_DTOA_LOCK(n) and freed - * by FREE_DTOA_LOCK(n) for n = 0 or 1. (The second lock, accessed - * in pow5mult, ensures lazy evaluation of only one copy of high - * powers of 5; omitting this lock would introduce a small - * probability of wasting memory, but would otherwise be harmless.) - * You must also invoke freedtoa(s) to free the value s returned by - * dtoa. You may do so whether or not MULTIPLE_THREADS is #defined. - * #define IMPRECISE_INEXACT if you do not care about the setting of - * the STRTOG_Inexact bits in the special case of doing IEEE double - * precision conversions (which could also be done by the strtog in - * dtoa.c). - * #define NO_HEX_FP to disable recognition of C9x's hexadecimal - * floating-point constants. - * #define -DNO_ERRNO to suppress setting errno (in strtod.c and - * strtodg.c). - * #define NO_STRING_H to use private versions of memcpy. - * On some K&R systems, it may also be necessary to - * #define DECLARE_SIZE_T in this case. - * #define YES_ALIAS to permit aliasing certain double values with - * arrays of ULongs. This leads to slightly better code with - * some compilers and was always used prior to 19990916, but it - * is not strictly legal and can cause trouble with aggressively - * optimizing compilers (e.g., gcc 2.95.1 under -O2). - * #define USE_LOCALE to use the current locale's decimal_point value. - */ - -#ifndef GDTOAIMP_H_INCLUDED -#define GDTOAIMP_H_INCLUDED -#include "gdtoa.h" -#include "gd_qnan.h" - -#ifdef DEBUG -#include "stdio.h" -#define Bug(x) {fprintf(stderr, "%s\n", x); exit(1);} -#endif - -#include "stdlib.h" -#include "string.h" - -#ifdef KR_headers -#define Char char -#else -#define Char void -#endif - -#ifdef MALLOC -extern Char *MALLOC ANSI((size_t)); -#else -#define MALLOC malloc -#endif - -#undef IEEE_Arith -#undef Avoid_Underflow -#ifdef IEEE_MC68k -#define IEEE_Arith -#endif -#ifdef IEEE_8087 -#define IEEE_Arith -#endif - -#include "errno.h" -#ifdef Bad_float_h - -#ifdef IEEE_Arith -#define DBL_DIG 15 -#define DBL_MAX_10_EXP 308 -#define DBL_MAX_EXP 1024 -#define FLT_RADIX 2 -#define DBL_MAX 1.7976931348623157e+308 -#endif - -#ifdef IBM -#define DBL_DIG 16 -#define DBL_MAX_10_EXP 75 -#define DBL_MAX_EXP 63 -#define FLT_RADIX 16 -#define DBL_MAX 7.2370055773322621e+75 -#endif - -#ifdef VAX -#define DBL_DIG 16 -#define DBL_MAX_10_EXP 38 -#define DBL_MAX_EXP 127 -#define FLT_RADIX 2 -#define DBL_MAX 1.7014118346046923e+38 -#define n_bigtens 2 -#endif - -#ifndef LONG_MAX -#define LONG_MAX 2147483647 -#endif - -#else /* ifndef Bad_float_h */ -#include "float.h" -#endif /* Bad_float_h */ - -#ifdef IEEE_Arith -#define Scale_Bit 0x10 -#define n_bigtens 5 -#endif - -#ifdef IBM -#define n_bigtens 3 -#endif - -#ifdef VAX -#define n_bigtens 2 -#endif - -#ifndef __MATH_H__ -#include "math.h" -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -#if defined(IEEE_8087) + defined(IEEE_MC68k) + defined(VAX) + defined(IBM) != 1 -Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined. -#endif - -typedef union { double d; ULong L[2]; } U; - -#ifdef YES_ALIAS -#define dval(x) x -#ifdef IEEE_8087 -#define word0(x) ((ULong *)&x)[1] -#define word1(x) ((ULong *)&x)[0] -#else -#define word0(x) ((ULong *)&x)[0] -#define word1(x) ((ULong *)&x)[1] -#endif -#else /* !YES_ALIAS */ -#ifdef IEEE_8087 -#define word0(x) ((U*)&x)->L[1] -#define word1(x) ((U*)&x)->L[0] -#else -#define word0(x) ((U*)&x)->L[0] -#define word1(x) ((U*)&x)->L[1] -#endif -#define dval(x) ((U*)&x)->d -#endif /* YES_ALIAS */ - -/* The following definition of Storeinc is appropriate for MIPS processors. - * An alternative that might be better on some machines is - * #define Storeinc(a,b,c) (*a++ = b << 16 | c & 0xffff) - */ -#if defined(IEEE_8087) + defined(VAX) -#define Storeinc(a,b,c) (((unsigned short *)a)[1] = (unsigned short)b, \ -((unsigned short *)a)[0] = (unsigned short)c, a++) -#else -#define Storeinc(a,b,c) (((unsigned short *)a)[0] = (unsigned short)b, \ -((unsigned short *)a)[1] = (unsigned short)c, a++) -#endif - -/* #define P DBL_MANT_DIG */ -/* Ten_pmax = floor(P*log(2)/log(5)) */ -/* Bletch = (highest power of 2 < DBL_MAX_10_EXP) / 16 */ -/* Quick_max = floor((P-1)*log(FLT_RADIX)/log(10) - 1) */ -/* Int_max = floor(P*log(FLT_RADIX)/log(10) - 1) */ - -#ifdef IEEE_Arith -#define Exp_shift 20 -#define Exp_shift1 20 -#define Exp_msk1 0x100000 -#define Exp_msk11 0x100000 -#define Exp_mask 0x7ff00000 -#define P 53 -#define Bias 1023 -#define Emin (-1022) -#define Exp_1 0x3ff00000 -#define Exp_11 0x3ff00000 -#define Ebits 11 -#define Frac_mask 0xfffff -#define Frac_mask1 0xfffff -#define Ten_pmax 22 -#define Bletch 0x10 -#define Bndry_mask 0xfffff -#define Bndry_mask1 0xfffff -#define LSB 1 -#define Sign_bit 0x80000000 -#define Log2P 1 -#define Tiny0 0 -#define Tiny1 1 -#define Quick_max 14 -#define Int_max 14 - -#ifndef Flt_Rounds -#ifdef FLT_ROUNDS -#define Flt_Rounds FLT_ROUNDS -#else -#define Flt_Rounds 1 -#endif -#endif /*Flt_Rounds*/ - -#else /* ifndef IEEE_Arith */ -#undef Sudden_Underflow -#define Sudden_Underflow -#ifdef IBM -#undef Flt_Rounds -#define Flt_Rounds 0 -#define Exp_shift 24 -#define Exp_shift1 24 -#define Exp_msk1 0x1000000 -#define Exp_msk11 0x1000000 -#define Exp_mask 0x7f000000 -#define P 14 -#define Bias 65 -#define Exp_1 0x41000000 -#define Exp_11 0x41000000 -#define Ebits 8 /* exponent has 7 bits, but 8 is the right value in b2d */ -#define Frac_mask 0xffffff -#define Frac_mask1 0xffffff -#define Bletch 4 -#define Ten_pmax 22 -#define Bndry_mask 0xefffff -#define Bndry_mask1 0xffffff -#define LSB 1 -#define Sign_bit 0x80000000 -#define Log2P 4 -#define Tiny0 0x100000 -#define Tiny1 0 -#define Quick_max 14 -#define Int_max 15 -#else /* VAX */ -#undef Flt_Rounds -#define Flt_Rounds 1 -#define Exp_shift 23 -#define Exp_shift1 7 -#define Exp_msk1 0x80 -#define Exp_msk11 0x800000 -#define Exp_mask 0x7f80 -#define P 56 -#define Bias 129 -#define Exp_1 0x40800000 -#define Exp_11 0x4080 -#define Ebits 8 -#define Frac_mask 0x7fffff -#define Frac_mask1 0xffff007f -#define Ten_pmax 24 -#define Bletch 2 -#define Bndry_mask 0xffff007f -#define Bndry_mask1 0xffff007f -#define LSB 0x10000 -#define Sign_bit 0x8000 -#define Log2P 1 -#define Tiny0 0x80 -#define Tiny1 0 -#define Quick_max 15 -#define Int_max 15 -#endif /* IBM, VAX */ -#endif /* IEEE_Arith */ - -#ifndef IEEE_Arith -#define ROUND_BIASED -#endif - -#ifdef RND_PRODQUOT -#define rounded_product(a,b) a = rnd_prod(a, b) -#define rounded_quotient(a,b) a = rnd_quot(a, b) -#ifdef KR_headers -extern double rnd_prod(), rnd_quot(); -#else -extern double rnd_prod(double, double), rnd_quot(double, double); -#endif -#else -#define rounded_product(a,b) a *= b -#define rounded_quotient(a,b) a /= b -#endif - -#define Big0 (Frac_mask1 | Exp_msk1*(DBL_MAX_EXP+Bias-1)) -#define Big1 0xffffffff - -#undef Pack_16 -#ifndef Pack_32 -#define Pack_32 -#endif - -#ifdef NO_LONG_LONG -#undef ULLong -#ifdef Just_16 -#undef Pack_32 -#define Pack_16 -/* When Pack_32 is not defined, we store 16 bits per 32-bit Long. - * This makes some inner loops simpler and sometimes saves work - * during multiplications, but it often seems to make things slightly - * slower. Hence the default is now to store 32 bits per Long. - */ -#endif -#else /* long long available */ -#ifndef Llong -#define Llong long long -#endif -#ifndef ULLong -#define ULLong unsigned Llong -#endif -#endif /* NO_LONG_LONG */ - -#ifdef Pack_32 -#define ULbits 32 -#define kshift 5 -#define kmask 31 -#define ALL_ON 0xffffffff -#else -#define ULbits 16 -#define kshift 4 -#define kmask 15 -#define ALL_ON 0xffff -#endif - -#ifndef MULTIPLE_THREADS -#define ACQUIRE_DTOA_LOCK(n) /*nothing*/ -#define FREE_DTOA_LOCK(n) /*nothing*/ -#endif - -#define Kmax 15 - - struct -Bigint { - struct Bigint *next; - int k, maxwds, sign, wds; - ULong x[1]; - }; - - typedef struct Bigint Bigint; - -#ifdef NO_STRING_H -#ifdef DECLARE_SIZE_T -typedef unsigned int size_t; -#endif -extern void memcpy_D2A ANSI((void*, const void*, size_t)); -#define Bcopy(x,y) memcpy_D2A(&x->sign,&y->sign,y->wds*sizeof(ULong) + 2*sizeof(int)) -#else /* !NO_STRING_H */ -#define Bcopy(x,y) memcpy(&x->sign,&y->sign,y->wds*sizeof(ULong) + 2*sizeof(int)) -#endif /* NO_STRING_H */ - -#define Balloc Balloc_D2A -#define Bfree Bfree_D2A -#define ULtoQ ULtoQ_D2A -#define ULtof ULtof_D2A -#define ULtod ULtod_D2A -#define ULtodd ULtodd_D2A -#define ULtox ULtox_D2A -#define ULtoxL ULtoxL_D2A -#define any_on any_on_D2A -#define b2d b2d_D2A -#define bigtens bigtens_D2A -#define cmp cmp_D2A -#define copybits copybits_D2A -#define d2b d2b_D2A -#define decrement decrement_D2A -#define diff diff_D2A -#define dtoa_result dtoa_result_D2A -#define g__fmt g__fmt_D2A -#define gethex gethex_D2A -#define hexdig hexdig_D2A -#define hexnan hexnan_D2A -#define hi0bits(x) hi0bits_D2A((ULong)(x)) -#define i2b i2b_D2A -#define increment increment_D2A -#define lo0bits lo0bits_D2A -#define lshift lshift_D2A -#define match match_D2A -#define mult mult_D2A -#define multadd multadd_D2A -#define nrv_alloc nrv_alloc_D2A -#define pow5mult pow5mult_D2A -#define quorem quorem_D2A -#define ratio ratio_D2A -#define rshift rshift_D2A -#define rv_alloc rv_alloc_D2A -#define s2b s2b_D2A -#define set_ones set_ones_D2A -#define strcp strcp_D2A -#define strtoIg strtoIg_D2A -#define sum sum_D2A -#define tens tens_D2A -#define tinytens tinytens_D2A -#define tinytens tinytens_D2A -#define trailz trailz_D2A -#define ulp ulp_D2A - - extern char *dtoa_result; - extern CONST double bigtens[], tens[], tinytens[]; - extern unsigned char hexdig[]; - - extern Bigint *Balloc ANSI((int)); - extern void Bfree ANSI((Bigint*)); - extern void ULtof ANSI((ULong*, ULong*, Long, int)); - extern void ULtod ANSI((ULong*, ULong*, Long, int)); - extern void ULtodd ANSI((ULong*, ULong*, Long, int)); - extern void ULtoQ ANSI((ULong*, ULong*, Long, int)); - extern void ULtox ANSI((UShort*, ULong*, Long, int)); - extern void ULtoxL ANSI((ULong*, ULong*, Long, int)); - extern ULong any_on ANSI((Bigint*, int)); - extern double b2d ANSI((Bigint*, int*)); - extern int cmp ANSI((Bigint*, Bigint*)); - extern void copybits ANSI((ULong*, int, Bigint*)); - extern Bigint *d2b ANSI((double, int*, int*)); - extern int decrement ANSI((Bigint*)); - extern Bigint *diff ANSI((Bigint*, Bigint*)); - extern char *dtoa ANSI((double d, int mode, int ndigits, - int *decpt, int *sign, char **rve)); - extern char *g__fmt ANSI((char*, char*, char*, int, ULong)); - extern int gethex ANSI((CONST char**, FPI*, Long*, Bigint**, int)); - extern void hexdig_init_D2A(Void); - extern int hexnan ANSI((CONST char**, FPI*, ULong*)); - extern int hi0bits_D2A ANSI((ULong)); - extern Bigint *i2b ANSI((int)); - extern Bigint *increment ANSI((Bigint*)); - extern int lo0bits ANSI((ULong*)); - extern Bigint *lshift ANSI((Bigint*, int)); - extern int match ANSI((CONST char**, char*)); - extern Bigint *mult ANSI((Bigint*, Bigint*)); - extern Bigint *multadd ANSI((Bigint*, int, int)); - extern char *nrv_alloc ANSI((char*, char **, int)); - extern Bigint *pow5mult ANSI((Bigint*, int)); - extern int quorem ANSI((Bigint*, Bigint*)); - extern double ratio ANSI((Bigint*, Bigint*)); - extern void rshift ANSI((Bigint*, int)); - extern char *rv_alloc ANSI((int)); - extern Bigint *s2b ANSI((CONST char*, int, int, ULong)); - extern Bigint *set_ones ANSI((Bigint*, int)); - extern char *strcp ANSI((char*, const char*)); - extern int strtoIg ANSI((CONST char*, char**, FPI*, Long*, Bigint**, int*)); - extern double strtod ANSI((const char *s00, char **se)); - extern Bigint *sum ANSI((Bigint*, Bigint*)); - extern int trailz ANSI((Bigint*)); - extern double ulp ANSI((double)); - -#ifdef __cplusplus -} -#endif -/* - * NAN_WORD0 and NAN_WORD1 are only referenced in strtod.c. Prior to - * 20050115, they used to be hard-wired here (to 0x7ff80000 and 0, - * respectively), but now are determined by compiling and running - * qnan.c to generate gd_qnan.h, which specifies d_QNAN0 and d_QNAN1. - * Formerly gdtoaimp.h recommended supplying suitable -DNAN_WORD0=... - * and -DNAN_WORD1=... values if necessary. This should still work. - * (On HP Series 700/800 machines, -DNAN_WORD0=0x7ff40000 works.) - */ -#ifdef IEEE_Arith -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#ifndef NAN_WORD0 -#define NAN_WORD0 d_QNAN0 -#endif -#ifndef NAN_WORD1 -#define NAN_WORD1 d_QNAN1 -#endif -#else -#define _0 1 -#define _1 0 -#ifndef NAN_WORD0 -#define NAN_WORD0 d_QNAN1 -#endif -#ifndef NAN_WORD1 -#define NAN_WORD1 d_QNAN0 -#endif -#endif -#else -#undef INFNAN_CHECK -#endif - -#undef SI -#ifdef Sudden_Underflow -#define SI 1 -#else -#define SI 0 -#endif - -#endif /* GDTOAIMP_H_INCLUDED */ diff --git a/gdtoa/gethex.c b/gdtoa/gethex.c deleted file mode 100644 index 610f7473..00000000 --- a/gdtoa/gethex.c +++ /dev/null @@ -1,247 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#ifdef USE_LOCALE -#include "locale.h" -#endif - - int -#ifdef KR_headers -gethex(sp, fpi, exp, bp, sign) - CONST char **sp; FPI *fpi; Long *exp; Bigint **bp; int sign; -#else -gethex( CONST char **sp, FPI *fpi, Long *exp, Bigint **bp, int sign) -#endif -{ - Bigint *b; - CONST unsigned char *decpt, *s0, *s, *s1; - int esign, havedig, irv, k, n, nbits, up, zret; - ULong L, lostbits, *x; - Long e, e1; -#ifdef USE_LOCALE - unsigned char decimalpoint = *localeconv()->decimal_point; -#else -#define decimalpoint '.' -#endif - - if (!hexdig['0']) - hexdig_init_D2A(); - havedig = 0; - s0 = *(CONST unsigned char **)sp + 2; - while(s0[havedig] == '0') - havedig++; - s0 += havedig; - s = s0; - decpt = 0; - zret = 0; - e = 0; - if (!hexdig[*s]) { - zret = 1; - if (*s != decimalpoint) - goto pcheck; - decpt = ++s; - if (!hexdig[*s]) - goto pcheck; - while(*s == '0') - s++; - if (hexdig[*s]) - zret = 0; - havedig = 1; - s0 = s; - } - while(hexdig[*s]) - s++; - if (*s == decimalpoint && !decpt) { - decpt = ++s; - while(hexdig[*s]) - s++; - } - if (decpt) - e = -(((Long)(s-decpt)) << 2); - pcheck: - s1 = s; - switch(*s) { - case 'p': - case 'P': - esign = 0; - switch(*++s) { - case '-': - esign = 1; - /* no break */ - case '+': - s++; - } - if ((n = hexdig[*s]) == 0 || n > 0x19) { - s = s1; - break; - } - e1 = n - 0x10; - while((n = hexdig[*++s]) !=0 && n <= 0x19) - e1 = 10*e1 + n - 0x10; - if (esign) - e1 = -e1; - e += e1; - } - *sp = (char*)s; - if (zret) - return havedig ? STRTOG_Zero : STRTOG_NoNumber; - n = s1 - s0 - 1; - for(k = 0; n > 7; n >>= 1) - k++; - b = Balloc(k); - x = b->x; - n = 0; - L = 0; - while(s1 > s0) { - if (*--s1 == decimalpoint) - continue; - if (n == 32) { - *x++ = L; - L = 0; - n = 0; - } - L |= (hexdig[*s1] & 0x0f) << n; - n += 4; - } - *x++ = L; - b->wds = n = x - b->x; - n = 32*n - hi0bits(L); - nbits = fpi->nbits; - lostbits = 0; - x = b->x; - if (n > nbits) { - n -= nbits; - if (any_on(b,n)) { - lostbits = 1; - k = n - 1; - if (x[k>>kshift] & 1 << (k & kmask)) { - lostbits = 2; - if (k > 1 && any_on(b,k-1)) - lostbits = 3; - } - } - rshift(b, n); - e += n; - } - else if (n < nbits) { - n = nbits - n; - b = lshift(b, n); - e -= n; - x = b->x; - } - if (e > fpi->emax) { - ovfl: - Bfree(b); - *bp = 0; - return STRTOG_Infinite | STRTOG_Overflow | STRTOG_Inexhi; - } - irv = STRTOG_Normal; - if (e < fpi->emin) { - irv = STRTOG_Denormal; - n = fpi->emin - e; - if (n >= nbits) { - switch (fpi->rounding) { - case FPI_Round_near: - if (n == nbits && (n < 2 || any_on(b,n-1))) - goto one_bit; - break; - case FPI_Round_up: - if (!sign) - goto one_bit; - break; - case FPI_Round_down: - if (sign) { - one_bit: - *exp = fpi->emin; - x[0] = b->wds = 1; - *bp = b; - return STRTOG_Denormal | STRTOG_Inexhi - | STRTOG_Underflow; - } - } - Bfree(b); - *bp = 0; - return STRTOG_Zero | STRTOG_Inexlo | STRTOG_Underflow; - } - k = n - 1; - if (lostbits) - lostbits = 1; - else if (k > 0) - lostbits = any_on(b,k); - if (x[k>>kshift] & 1 << (k & kmask)) - lostbits |= 2; - nbits -= n; - rshift(b,n); - e = fpi->emin; - } - if (lostbits) { - up = 0; - switch(fpi->rounding) { - case FPI_Round_zero: - break; - case FPI_Round_near: - if (lostbits & 2 - && (lostbits & 1) | x[0] & 1) - up = 1; - break; - case FPI_Round_up: - up = 1 - sign; - break; - case FPI_Round_down: - up = sign; - } - if (up) { - k = b->wds; - b = increment(b); - x = b->x; - if (irv == STRTOG_Denormal) { - if (nbits == fpi->nbits - 1 - && x[nbits >> kshift] & 1 << (nbits & kmask)) - irv = STRTOG_Normal; - } - else if (b->wds > k - || (n = nbits & kmask) !=0 - && hi0bits(x[k-1]) < 32-n) { - rshift(b,1); - if (++e > fpi->emax) - goto ovfl; - } - irv |= STRTOG_Inexhi; - } - else - irv |= STRTOG_Inexlo; - } - *bp = b; - *exp = e; - return irv; - } diff --git a/gdtoa/gmisc.c b/gdtoa/gmisc.c deleted file mode 100644 index 8270ef94..00000000 --- a/gdtoa/gmisc.c +++ /dev/null @@ -1,86 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - void -#ifdef KR_headers -rshift(b, k) Bigint *b; int k; -#else -rshift(Bigint *b, int k) -#endif -{ - ULong *x, *x1, *xe, y; - int n; - - x = x1 = b->x; - n = k >> kshift; - if (n < b->wds) { - xe = x + b->wds; - x += n; - if (k &= kmask) { - n = ULbits - k; - y = *x++ >> k; - while(x < xe) { - *x1++ = (y | (*x << n)) & ALL_ON; - y = *x++ >> k; - } - if ((*x1 = y) !=0) - x1++; - } - else - while(x < xe) - *x1++ = *x++; - } - if ((b->wds = x1 - b->x) == 0) - b->x[0] = 0; - } - - int -#ifdef KR_headers -trailz(b) Bigint *b; -#else -trailz(Bigint *b) -#endif -{ - ULong L, *x, *xe; - int n = 0; - - x = b->x; - xe = x + b->wds; - for(n = 0; x < xe && !*x; x++) - n += ULbits; - if (x < xe) { - L = *x; - n += lo0bits(&L); - } - return n; - } diff --git a/gdtoa/hd_init.c b/gdtoa/hd_init.c deleted file mode 100644 index fa6e18de..00000000 --- a/gdtoa/hd_init.c +++ /dev/null @@ -1,55 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - unsigned char hexdig[256]; - - static void -#ifdef KR_headers -htinit(h, s, inc) unsigned char *h; unsigned char *s; int inc; -#else -htinit(unsigned char *h, unsigned char *s, int inc) -#endif -{ - int i, j; - for(i = 0; (j = s[i]) !=0; i++) - h[j] = i + inc; - } - - void -hexdig_init_D2A(Void) -{ -#define USC (unsigned char *) - htinit(hexdig, USC "0123456789", 0x10); - htinit(hexdig, USC "abcdef", 0x10 + 10); - htinit(hexdig, USC "ABCDEF", 0x10 + 10); - } diff --git a/gdtoa/hexnan.c b/gdtoa/hexnan.c deleted file mode 100644 index 591cad13..00000000 --- a/gdtoa/hexnan.c +++ /dev/null @@ -1,131 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - static void -#ifdef KR_headers -L_shift(x, x1, i) ULong *x; ULong *x1; int i; -#else -L_shift(ULong *x, ULong *x1, int i) -#endif -{ - int j; - - i = 8 - i; - i <<= 2; - j = ULbits - i; - do { - *x |= x[1] << j; - x[1] >>= i; - } while(++x < x1); - } - - int -#ifdef KR_headers -hexnan(sp, fpi, x0) - CONST char **sp; FPI *fpi; ULong *x0; -#else -hexnan( CONST char **sp, FPI *fpi, ULong *x0) -#endif -{ - ULong c, h, *x, *x1, *xe; - CONST char *s; - int havedig, hd0, i, nbits; - - if (!hexdig['0']) - hexdig_init_D2A(); - nbits = fpi->nbits; - x = x0 + (nbits >> kshift); - if (nbits & kmask) - x++; - *--x = 0; - x1 = xe = x; - havedig = hd0 = i = 0; - s = *sp; - while(c = *(CONST unsigned char*)++s) { - if (!(h = hexdig[c])) { - if (c <= ' ') { - if (hd0 < havedig) { - if (x < x1 && i < 8) - L_shift(x, x1, i); - if (x <= x0) { - i = 8; - continue; - } - hd0 = havedig; - *--x = 0; - x1 = x; - i = 0; - } - continue; - } - if (/*(*/ c == ')' && havedig) { - *sp = s + 1; - break; - } - return STRTOG_NaN; - } - havedig++; - if (++i > 8) { - if (x <= x0) - continue; - i = 1; - *--x = 0; - } - *x = (*x << 4) | h & 0xf; - } - if (!havedig) - return STRTOG_NaN; - if (x < x1 && i < 8) - L_shift(x, x1, i); - if (x > x0) { - x1 = x0; - do *x1++ = *x++; - while(x <= xe); - do *x1++ = 0; - while(x1 <= xe); - } - else { - /* truncate high-order word if necessary */ - if ( (i = nbits & (ULbits-1)) !=0) - *xe &= ((ULong)0xffffffff) >> (ULbits - i); - } - for(x1 = xe;; --x1) { - if (*x1 != 0) - break; - if (x1 == x0) { - *x1 = 1; - break; - } - } - return STRTOG_NaNbits; - } diff --git a/gdtoa/misc.c b/gdtoa/misc.c deleted file mode 100644 index b3ce7c9b..00000000 --- a/gdtoa/misc.c +++ /dev/null @@ -1,865 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 1999 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - static Bigint *freelist[Kmax+1]; -#ifndef Omit_Private_Memory -#ifndef PRIVATE_MEM -#define PRIVATE_MEM 2304 -#endif -#define PRIVATE_mem ((PRIVATE_MEM+sizeof(double)-1)/sizeof(double)) -static double private_mem[PRIVATE_mem], *pmem_next = private_mem; -#endif - - Bigint * -Balloc -#ifdef KR_headers - (k) int k; -#else - (int k) -#endif -{ - int x; - Bigint *rv; -#ifndef Omit_Private_Memory - unsigned int len; -#endif - - ACQUIRE_DTOA_LOCK(0); - if ( (rv = freelist[k]) !=0) { - freelist[k] = rv->next; - } - else { - x = 1 << k; -#ifdef Omit_Private_Memory - rv = (Bigint *)MALLOC(sizeof(Bigint) + (x-1)*sizeof(ULong)); -#else - len = (sizeof(Bigint) + (x-1)*sizeof(ULong) + sizeof(double) - 1) - /sizeof(double); - if (pmem_next - private_mem + len <= PRIVATE_mem) { - rv = (Bigint*)pmem_next; - pmem_next += len; - } - else - rv = (Bigint*)MALLOC(len*sizeof(double)); -#endif - rv->k = k; - rv->maxwds = x; - } - FREE_DTOA_LOCK(0); - rv->sign = rv->wds = 0; - return rv; - } - - void -Bfree -#ifdef KR_headers - (v) Bigint *v; -#else - (Bigint *v) -#endif -{ - if (v) { - ACQUIRE_DTOA_LOCK(0); - v->next = freelist[v->k]; - freelist[v->k] = v; - FREE_DTOA_LOCK(0); - } - } - - int -lo0bits -#ifdef KR_headers - (y) ULong *y; -#else - (ULong *y) -#endif -{ - register int k; - register ULong x = *y; - - if (x & 7) { - if (x & 1) - return 0; - if (x & 2) { - *y = x >> 1; - return 1; - } - *y = x >> 2; - return 2; - } - k = 0; - if (!(x & 0xffff)) { - k = 16; - x >>= 16; - } - if (!(x & 0xff)) { - k += 8; - x >>= 8; - } - if (!(x & 0xf)) { - k += 4; - x >>= 4; - } - if (!(x & 0x3)) { - k += 2; - x >>= 2; - } - if (!(x & 1)) { - k++; - x >>= 1; - if (!x) - return 32; - } - *y = x; - return k; - } - - Bigint * -multadd -#ifdef KR_headers - (b, m, a) Bigint *b; int m, a; -#else - (Bigint *b, int m, int a) /* multiply by m and add a */ -#endif -{ - int i, wds; -#ifdef ULLong - ULong *x; - ULLong carry, y; -#else - ULong carry, *x, y; -#ifdef Pack_32 - ULong xi, z; -#endif -#endif - Bigint *b1; - - wds = b->wds; - x = b->x; - i = 0; - carry = a; - do { -#ifdef ULLong - y = *x * (ULLong)m + carry; - carry = y >> 32; - *x++ = y & 0xffffffffUL; -#else -#ifdef Pack_32 - xi = *x; - y = (xi & 0xffff) * m + carry; - z = (xi >> 16) * m + (y >> 16); - carry = z >> 16; - *x++ = (z << 16) + (y & 0xffff); -#else - y = *x * m + carry; - carry = y >> 16; - *x++ = y & 0xffff; -#endif -#endif - } - while(++i < wds); - if (carry) { - if (wds >= b->maxwds) { - b1 = Balloc(b->k+1); - Bcopy(b1, b); - Bfree(b); - b = b1; - } - b->x[wds++] = carry; - b->wds = wds; - } - return b; - } - - int -hi0bits_D2A -#ifdef KR_headers - (x) register ULong x; -#else - (register ULong x) -#endif -{ - register int k = 0; - - if (!(x & 0xffff0000)) { - k = 16; - x <<= 16; - } - if (!(x & 0xff000000)) { - k += 8; - x <<= 8; - } - if (!(x & 0xf0000000)) { - k += 4; - x <<= 4; - } - if (!(x & 0xc0000000)) { - k += 2; - x <<= 2; - } - if (!(x & 0x80000000)) { - k++; - if (!(x & 0x40000000)) - return 32; - } - return k; - } - - Bigint * -i2b -#ifdef KR_headers - (i) int i; -#else - (int i) -#endif -{ - Bigint *b; - - b = Balloc(1); - b->x[0] = i; - b->wds = 1; - return b; - } - - Bigint * -mult -#ifdef KR_headers - (a, b) Bigint *a, *b; -#else - (Bigint *a, Bigint *b) -#endif -{ - Bigint *c; - int k, wa, wb, wc; - ULong *x, *xa, *xae, *xb, *xbe, *xc, *xc0; - ULong y; -#ifdef ULLong - ULLong carry, z; -#else - ULong carry, z; -#ifdef Pack_32 - ULong z2; -#endif -#endif - - if (a->wds < b->wds) { - c = a; - a = b; - b = c; - } - k = a->k; - wa = a->wds; - wb = b->wds; - wc = wa + wb; - if (wc > a->maxwds) - k++; - c = Balloc(k); - for(x = c->x, xa = x + wc; x < xa; x++) - *x = 0; - xa = a->x; - xae = xa + wa; - xb = b->x; - xbe = xb + wb; - xc0 = c->x; -#ifdef ULLong - for(; xb < xbe; xc0++) { - if ( (y = *xb++) !=0) { - x = xa; - xc = xc0; - carry = 0; - do { - z = *x++ * (ULLong)y + *xc + carry; - carry = z >> 32; - *xc++ = z & 0xffffffffUL; - } - while(x < xae); - *xc = carry; - } - } -#else -#ifdef Pack_32 - for(; xb < xbe; xb++, xc0++) { - if ( (y = *xb & 0xffff) !=0) { - x = xa; - xc = xc0; - carry = 0; - do { - z = (*x & 0xffff) * y + (*xc & 0xffff) + carry; - carry = z >> 16; - z2 = (*x++ >> 16) * y + (*xc >> 16) + carry; - carry = z2 >> 16; - Storeinc(xc, z2, z); - } - while(x < xae); - *xc = carry; - } - if ( (y = *xb >> 16) !=0) { - x = xa; - xc = xc0; - carry = 0; - z2 = *xc; - do { - z = (*x & 0xffff) * y + (*xc >> 16) + carry; - carry = z >> 16; - Storeinc(xc, z, z2); - z2 = (*x++ >> 16) * y + (*xc & 0xffff) + carry; - carry = z2 >> 16; - } - while(x < xae); - *xc = z2; - } - } -#else - for(; xb < xbe; xc0++) { - if ( (y = *xb++) !=0) { - x = xa; - xc = xc0; - carry = 0; - do { - z = *x++ * y + *xc + carry; - carry = z >> 16; - *xc++ = z & 0xffff; - } - while(x < xae); - *xc = carry; - } - } -#endif -#endif - for(xc0 = c->x, xc = xc0 + wc; wc > 0 && !*--xc; --wc) ; - c->wds = wc; - return c; - } - - static Bigint *p5s; - - Bigint * -pow5mult -#ifdef KR_headers - (b, k) Bigint *b; int k; -#else - (Bigint *b, int k) -#endif -{ - Bigint *b1, *p5, *p51; - int i; - static int p05[3] = { 5, 25, 125 }; - - if ( (i = k & 3) !=0) - b = multadd(b, p05[i-1], 0); - - if (!(k >>= 2)) - return b; - if ((p5 = p5s) == 0) { - /* first time */ -#ifdef MULTIPLE_THREADS - ACQUIRE_DTOA_LOCK(1); - if (!(p5 = p5s)) { - p5 = p5s = i2b(625); - p5->next = 0; - } - FREE_DTOA_LOCK(1); -#else - p5 = p5s = i2b(625); - p5->next = 0; -#endif - } - for(;;) { - if (k & 1) { - b1 = mult(b, p5); - Bfree(b); - b = b1; - } - if (!(k >>= 1)) - break; - if ((p51 = p5->next) == 0) { -#ifdef MULTIPLE_THREADS - ACQUIRE_DTOA_LOCK(1); - if (!(p51 = p5->next)) { - p51 = p5->next = mult(p5,p5); - p51->next = 0; - } - FREE_DTOA_LOCK(1); -#else - p51 = p5->next = mult(p5,p5); - p51->next = 0; -#endif - } - p5 = p51; - } - return b; - } - - Bigint * -lshift -#ifdef KR_headers - (b, k) Bigint *b; int k; -#else - (Bigint *b, int k) -#endif -{ - int i, k1, n, n1; - Bigint *b1; - ULong *x, *x1, *xe, z; - - n = k >> kshift; - k1 = b->k; - n1 = n + b->wds + 1; - for(i = b->maxwds; n1 > i; i <<= 1) - k1++; - b1 = Balloc(k1); - x1 = b1->x; - for(i = 0; i < n; i++) - *x1++ = 0; - x = b->x; - xe = x + b->wds; - if (k &= kmask) { -#ifdef Pack_32 - k1 = 32 - k; - z = 0; - do { - *x1++ = *x << k | z; - z = *x++ >> k1; - } - while(x < xe); - if ((*x1 = z) !=0) - ++n1; -#else - k1 = 16 - k; - z = 0; - do { - *x1++ = *x << k & 0xffff | z; - z = *x++ >> k1; - } - while(x < xe); - if (*x1 = z) - ++n1; -#endif - } - else do - *x1++ = *x++; - while(x < xe); - b1->wds = n1 - 1; - Bfree(b); - return b1; - } - - int -cmp -#ifdef KR_headers - (a, b) Bigint *a, *b; -#else - (Bigint *a, Bigint *b) -#endif -{ - ULong *xa, *xa0, *xb, *xb0; - int i, j; - - i = a->wds; - j = b->wds; -#ifdef DEBUG - if (i > 1 && !a->x[i-1]) - Bug("cmp called with a->x[a->wds-1] == 0"); - if (j > 1 && !b->x[j-1]) - Bug("cmp called with b->x[b->wds-1] == 0"); -#endif - if (i -= j) - return i; - xa0 = a->x; - xa = xa0 + j; - xb0 = b->x; - xb = xb0 + j; - for(;;) { - if (*--xa != *--xb) - return *xa < *xb ? -1 : 1; - if (xa <= xa0) - break; - } - return 0; - } - - Bigint * -diff -#ifdef KR_headers - (a, b) Bigint *a, *b; -#else - (Bigint *a, Bigint *b) -#endif -{ - Bigint *c; - int i, wa, wb; - ULong *xa, *xae, *xb, *xbe, *xc; -#ifdef ULLong - ULLong borrow, y; -#else - ULong borrow, y; -#ifdef Pack_32 - ULong z; -#endif -#endif - - i = cmp(a,b); - if (!i) { - c = Balloc(0); - c->wds = 1; - c->x[0] = 0; - return c; - } - if (i < 0) { - c = a; - a = b; - b = c; - i = 1; - } - else - i = 0; - c = Balloc(a->k); - c->sign = i; - wa = a->wds; - xa = a->x; - xae = xa + wa; - wb = b->wds; - xb = b->x; - xbe = xb + wb; - xc = c->x; - borrow = 0; -#ifdef ULLong - do { - y = (ULLong)*xa++ - *xb++ - borrow; - borrow = y >> 32 & 1UL; - *xc++ = y & 0xffffffffUL; - } - while(xb < xbe); - while(xa < xae) { - y = *xa++ - borrow; - borrow = y >> 32 & 1UL; - *xc++ = y & 0xffffffffUL; - } -#else -#ifdef Pack_32 - do { - y = (*xa & 0xffff) - (*xb & 0xffff) - borrow; - borrow = (y & 0x10000) >> 16; - z = (*xa++ >> 16) - (*xb++ >> 16) - borrow; - borrow = (z & 0x10000) >> 16; - Storeinc(xc, z, y); - } - while(xb < xbe); - while(xa < xae) { - y = (*xa & 0xffff) - borrow; - borrow = (y & 0x10000) >> 16; - z = (*xa++ >> 16) - borrow; - borrow = (z & 0x10000) >> 16; - Storeinc(xc, z, y); - } -#else - do { - y = *xa++ - *xb++ - borrow; - borrow = (y & 0x10000) >> 16; - *xc++ = y & 0xffff; - } - while(xb < xbe); - while(xa < xae) { - y = *xa++ - borrow; - borrow = (y & 0x10000) >> 16; - *xc++ = y & 0xffff; - } -#endif -#endif - while(!*--xc) - wa--; - c->wds = wa; - return c; - } - - double -b2d -#ifdef KR_headers - (a, e) Bigint *a; int *e; -#else - (Bigint *a, int *e) -#endif -{ - ULong *xa, *xa0, w, y, z; - int k; - double d; -#ifdef VAX - ULong d0, d1; -#else -#define d0 word0(d) -#define d1 word1(d) -#endif - - xa0 = a->x; - xa = xa0 + a->wds; - y = *--xa; -#ifdef DEBUG - if (!y) Bug("zero y in b2d"); -#endif - k = hi0bits(y); - *e = 32 - k; -#ifdef Pack_32 - if (k < Ebits) { - d0 = Exp_1 | y >> Ebits - k; - w = xa > xa0 ? *--xa : 0; - d1 = y << (32-Ebits) + k | w >> Ebits - k; - goto ret_d; - } - z = xa > xa0 ? *--xa : 0; - if (k -= Ebits) { - d0 = Exp_1 | y << k | z >> 32 - k; - y = xa > xa0 ? *--xa : 0; - d1 = z << k | y >> 32 - k; - } - else { - d0 = Exp_1 | y; - d1 = z; - } -#else - if (k < Ebits + 16) { - z = xa > xa0 ? *--xa : 0; - d0 = Exp_1 | y << k - Ebits | z >> Ebits + 16 - k; - w = xa > xa0 ? *--xa : 0; - y = xa > xa0 ? *--xa : 0; - d1 = z << k + 16 - Ebits | w << k - Ebits | y >> 16 + Ebits - k; - goto ret_d; - } - z = xa > xa0 ? *--xa : 0; - w = xa > xa0 ? *--xa : 0; - k -= Ebits + 16; - d0 = Exp_1 | y << k + 16 | z << k | w >> 16 - k; - y = xa > xa0 ? *--xa : 0; - d1 = w << k + 16 | y << k; -#endif - ret_d: -#ifdef VAX - word0(d) = d0 >> 16 | d0 << 16; - word1(d) = d1 >> 16 | d1 << 16; -#endif - return dval(d); - } -#undef d0 -#undef d1 - - Bigint * -d2b -#ifdef KR_headers - (d, e, bits) double d; int *e, *bits; -#else - (double d, int *e, int *bits) -#endif -{ - Bigint *b; -#ifndef Sudden_Underflow - int i; -#endif - int de, k; - ULong *x, y, z; -#ifdef VAX - ULong d0, d1; - d0 = word0(d) >> 16 | word0(d) << 16; - d1 = word1(d) >> 16 | word1(d) << 16; -#else -#define d0 word0(d) -#define d1 word1(d) -#endif - -#ifdef Pack_32 - b = Balloc(1); -#else - b = Balloc(2); -#endif - x = b->x; - - z = d0 & Frac_mask; - d0 &= 0x7fffffff; /* clear sign bit, which we ignore */ -#ifdef Sudden_Underflow - de = (int)(d0 >> Exp_shift); -#ifndef IBM - z |= Exp_msk11; -#endif -#else - if ( (de = (int)(d0 >> Exp_shift)) !=0) - z |= Exp_msk1; -#endif -#ifdef Pack_32 - if ( (y = d1) !=0) { - if ( (k = lo0bits(&y)) !=0) { - x[0] = y | z << 32 - k; - z >>= k; - } - else - x[0] = y; -#ifndef Sudden_Underflow - i = -#endif - b->wds = (x[1] = z) !=0 ? 2 : 1; - } - else { -#ifdef DEBUG - if (!z) - Bug("Zero passed to d2b"); -#endif - k = lo0bits(&z); - x[0] = z; -#ifndef Sudden_Underflow - i = -#endif - b->wds = 1; - k += 32; - } -#else - if ( (y = d1) !=0) { - if ( (k = lo0bits(&y)) !=0) - if (k >= 16) { - x[0] = y | z << 32 - k & 0xffff; - x[1] = z >> k - 16 & 0xffff; - x[2] = z >> k; - i = 2; - } - else { - x[0] = y & 0xffff; - x[1] = y >> 16 | z << 16 - k & 0xffff; - x[2] = z >> k & 0xffff; - x[3] = z >> k+16; - i = 3; - } - else { - x[0] = y & 0xffff; - x[1] = y >> 16; - x[2] = z & 0xffff; - x[3] = z >> 16; - i = 3; - } - } - else { -#ifdef DEBUG - if (!z) - Bug("Zero passed to d2b"); -#endif - k = lo0bits(&z); - if (k >= 16) { - x[0] = z; - i = 0; - } - else { - x[0] = z & 0xffff; - x[1] = z >> 16; - i = 1; - } - k += 32; - } - while(!x[i]) - --i; - b->wds = i + 1; -#endif -#ifndef Sudden_Underflow - if (de) { -#endif -#ifdef IBM - *e = (de - Bias - (P-1) << 2) + k; - *bits = 4*P + 8 - k - hi0bits(word0(d) & Frac_mask); -#else - *e = de - Bias - (P-1) + k; - *bits = P - k; -#endif -#ifndef Sudden_Underflow - } - else { - *e = de - Bias - (P-1) + 1 + k; -#ifdef Pack_32 - *bits = 32*i - hi0bits(x[i-1]); -#else - *bits = (i+2)*16 - hi0bits(x[i]); -#endif - } -#endif - return b; - } -#undef d0 -#undef d1 - - CONST double -#ifdef IEEE_Arith -bigtens[] = { 1e16, 1e32, 1e64, 1e128, 1e256 }; -CONST double tinytens[] = { 1e-16, 1e-32, 1e-64, 1e-128, 1e-256 - }; -#else -#ifdef IBM -bigtens[] = { 1e16, 1e32, 1e64 }; -CONST double tinytens[] = { 1e-16, 1e-32, 1e-64 }; -#else -bigtens[] = { 1e16, 1e32 }; -CONST double tinytens[] = { 1e-16, 1e-32 }; -#endif -#endif - - CONST double -tens[] = { - 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, - 1e10, 1e11, 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, - 1e20, 1e21, 1e22 -#ifdef VAX - , 1e23, 1e24 -#endif - }; - - char * -#ifdef KR_headers -strcp_D2A(a, b) char *a; char *b; -#else -strcp_D2A(char *a, CONST char *b) -#endif -{ - while(*a = *b++) - a++; - return a; - } - -#ifdef NO_STRING_H - - Char * -#ifdef KR_headers -memcpy_D2A(a, b, len) Char *a; Char *b; size_t len; -#else -memcpy_D2A(void *a1, void *b1, size_t len) -#endif -{ - register char *a = (char*)a1, *ae = a + len; - register char *b = (char*)b1, *a0 = a; - while(a < ae) - *a++ = *b++; - return a0; - } - -#endif /* NO_STRING_H */ diff --git a/gdtoa/qnan.c b/gdtoa/qnan.c deleted file mode 100644 index 118e7492..00000000 --- a/gdtoa/qnan.c +++ /dev/null @@ -1,110 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 2005 by David M. Gay -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and its -documentation for any purpose and without fee is hereby granted, -provided that the above copyright notice appear in all copies and that -both that the copyright notice and this permission notice and warranty -disclaimer appear in supporting documentation, and that the name of -the author or any of his current or former employers not be used in -advertising or publicity pertaining to distribution of the software -without specific, written prior permission. - -THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN -NO EVENT SHALL THE AUTHOR OR ANY OF HIS CURRENT OR FORMER EMPLOYERS BE -LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY -DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, -WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS -SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -/* Program to compute quiet NaNs of various precisions (float, */ -/* double, and perhaps long double) on the current system, */ -/* provided the system uses binary IEEE (P754) arithmetic. */ -/* Note that one system's quiet NaN may be a signaling NaN on */ -/* another system. The IEEE arithmetic standards (P754, P854) */ -/* do not specify how to distinguish signaling NaNs from quiet */ -/* ones, and this detail varies across systems. The computed */ -/* NaN values are encoded in #defines for values for an */ -/* unsigned 32-bit integer type, called Ulong below, and */ -/* (for long double) perhaps as unsigned short values. Once */ -/* upon a time, there were PC compilers for Intel CPUs that */ -/* had sizeof(long double) = 10. Are such compilers still */ -/* distributed? */ - -#include <stdio.h> -#include "arith.h" - -#ifndef Long -#define Long long -#endif - -typedef unsigned Long Ulong; - -#undef HAVE_IEEE -#ifdef IEEE_8087 -#define _0 1 -#define _1 0 -#define HAVE_IEEE -#endif -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define HAVE_IEEE -#endif - -#define UL (unsigned long) - - int -main(void) -{ -#ifdef HAVE_IEEE - typedef union { - float f; - double d; - Ulong L[4]; -#ifndef NO_LONG_LONG - unsigned short u[5]; - long double D; -#endif - } U; - U a, b, c; - int i; - - a.L[0] = b.L[0] = 0x7f800000; - c.f = a.f - b.f; - printf("#define f_QNAN 0x%lx\n", UL c.L[0]); - a.L[_0] = b.L[_0] = 0x7ff00000; - a.L[_1] = b.L[_1] = 0; - c.d = a.d - b.d; /* quiet NaN */ - printf("#define d_QNAN0 0x%lx\n", UL c.L[0]); - printf("#define d_QNAN1 0x%lx\n", UL c.L[1]); -#ifdef NO_LONG_LONG - for(i = 0; i < 4; i++) - printf("#define ld_QNAN%d 0xffffffff\n", i); - for(i = 0; i < 5; i++) - printf("#define ldus_QNAN%d 0xffff\n", i); -#else - b.D = c.D = a.d; - if (printf("") < 0) - c.D = 37; /* never executed; just defeat optimization */ - a.L[2] = a.L[3] = 0; - a.D = b.D - c.D; - for(i = 0; i < 4; i++) - printf("#define ld_QNAN%d 0x%lx\n", i, UL a.L[i]); - for(i = 0; i < 5; i++) - printf("#define ldus_QNAN%d 0x%x\n", i, a.u[i]); -#endif -#endif /* HAVE_IEEE */ - return 0; - } diff --git a/gdtoa/smisc.c b/gdtoa/smisc.c deleted file mode 100644 index 163011e0..00000000 --- a/gdtoa/smisc.c +++ /dev/null @@ -1,191 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 1999 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - Bigint * -s2b -#ifdef KR_headers - (s, nd0, nd, y9) CONST char *s; int nd0, nd; ULong y9; -#else - (CONST char *s, int nd0, int nd, ULong y9) -#endif -{ - Bigint *b; - int i, k; - Long x, y; - - x = (nd + 8) / 9; - for(k = 0, y = 1; x > y; y <<= 1, k++) ; -#ifdef Pack_32 - b = Balloc(k); - b->x[0] = y9; - b->wds = 1; -#else - b = Balloc(k+1); - b->x[0] = y9 & 0xffff; - b->wds = (b->x[1] = y9 >> 16) ? 2 : 1; -#endif - - i = 9; - if (9 < nd0) { - s += 9; - do b = multadd(b, 10, *s++ - '0'); - while(++i < nd0); - s++; - } - else - s += 10; - for(; i < nd; i++) - b = multadd(b, 10, *s++ - '0'); - return b; - } - - double -ratio -#ifdef KR_headers - (a, b) Bigint *a, *b; -#else - (Bigint *a, Bigint *b) -#endif -{ - double da, db; - int k, ka, kb; - - dval(da) = b2d(a, &ka); - dval(db) = b2d(b, &kb); - k = ka - kb + ULbits*(a->wds - b->wds); -#ifdef IBM - if (k > 0) { - word0(da) += (k >> 2)*Exp_msk1; - if (k &= 3) - dval(da) *= 1 << k; - } - else { - k = -k; - word0(db) += (k >> 2)*Exp_msk1; - if (k &= 3) - dval(db) *= 1 << k; - } -#else - if (k > 0) - word0(da) += k*Exp_msk1; - else { - k = -k; - word0(db) += k*Exp_msk1; - } -#endif - return dval(da) / dval(db); - } - -#ifdef INFNAN_CHECK - - int -match -#ifdef KR_headers - (sp, t) char **sp, *t; -#else - (CONST char **sp, char *t) -#endif -{ - int c, d; - CONST char *s = *sp; - - while( (d = *t++) !=0) { - if ((c = *++s) >= 'A' && c <= 'Z') - c += 'a' - 'A'; - if (c != d) - return 0; - } - *sp = s + 1; - return 1; - } -#endif /* INFNAN_CHECK */ - - void -#ifdef KR_headers -copybits(c, n, b) ULong *c; int n; Bigint *b; -#else -copybits(ULong *c, int n, Bigint *b) -#endif -{ - ULong *ce, *x, *xe; -#ifdef Pack_16 - int nw, nw1; -#endif - - ce = c + ((n-1) >> kshift) + 1; - x = b->x; -#ifdef Pack_32 - xe = x + b->wds; - while(x < xe) - *c++ = *x++; -#else - nw = b->wds; - nw1 = nw & 1; - for(xe = x + (nw - nw1); x < xe; x += 2) - Storeinc(c, x[1], x[0]); - if (nw1) - *c++ = *x; -#endif - while(c < ce) - *c++ = 0; - } - - ULong -#ifdef KR_headers -any_on(b, k) Bigint *b; int k; -#else -any_on(Bigint *b, int k) -#endif -{ - int n, nwds; - ULong *x, *x0, x1, x2; - - x = b->x; - nwds = b->wds; - n = k >> kshift; - if (n > nwds) - n = nwds; - else if (n < nwds && (k &= kmask)) { - x1 = x2 = x[n]; - x1 >>= k; - x1 <<= k; - if (x1 != x2) - return 1; - } - x0 = x; - x += n; - while(x > x0) - if (*--x) - return 1; - return 0; - } diff --git a/gdtoa/strtoIQ.c b/gdtoa/strtoIQ.c deleted file mode 100644 index 9ce5120e..00000000 --- a/gdtoa/strtoIQ.c +++ /dev/null @@ -1,63 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtoIQ(s, sp, a, b) CONST char *s; char **sp; void *a; void *b; -#else -strtoIQ(CONST char *s, char **sp, void *a, void *b) -#endif -{ - static FPI fpi = { 113, 1-16383-113+1, 32766-16383-113+1, 1, SI }; - Long exp[2]; - Bigint *B[2]; - int k, rv[2]; - ULong *L = (ULong *)a, *M = (ULong *)b; - - B[0] = Balloc(2); - B[0]->wds = 4; - k = strtoIg(s, sp, &fpi, exp, B, rv); - ULtoQ(L, B[0]->x, exp[0], rv[0]); - Bfree(B[0]); - if (B[1]) { - ULtoQ(M, B[1]->x, exp[1], rv[1]); - Bfree(B[1]); - } - else { - M[0] = L[0]; - M[1] = L[1]; - M[2] = L[2]; - M[3] = L[3]; - } - return k; - } diff --git a/gdtoa/strtoId.c b/gdtoa/strtoId.c deleted file mode 100644 index 1c97d382..00000000 --- a/gdtoa/strtoId.c +++ /dev/null @@ -1,60 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtoId(s, sp, f0, f1) CONST char *s; char **sp; double *f0, *f1; -#else -strtoId(CONST char *s, char **sp, double *f0, double *f1) -#endif -{ - static FPI fpi = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI }; - Long exp[2]; - Bigint *B[2]; - int k, rv[2]; - - B[0] = Balloc(1); - B[0]->wds = 2; - k = strtoIg(s, sp, &fpi, exp, B, rv); - ULtod((ULong*)f0, B[0]->x, exp[0], rv[0]); - Bfree(B[0]); - if (B[1]) { - ULtod((ULong*)f1, B[1]->x, exp[1], rv[1]); - Bfree(B[1]); - } - else { - ((ULong*)f1)[0] = ((ULong*)f0)[0]; - ((ULong*)f1)[1] = ((ULong*)f0)[1]; - } - return k; - } diff --git a/gdtoa/strtoIdd.c b/gdtoa/strtoIdd.c deleted file mode 100644 index 40b7936b..00000000 --- a/gdtoa/strtoIdd.c +++ /dev/null @@ -1,66 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtoIdd(s, sp, f0, f1) CONST char *s; char **sp; double *f0, *f1; -#else -strtoIdd(CONST char *s, char **sp, double *f0, double *f1) -#endif -{ -#ifdef Sudden_Underflow - static FPI fpi = { 106, 1-1023, 2046-1023-106+1, 1, 1 }; -#else - static FPI fpi = { 106, 1-1023-53+1, 2046-1023-106+1, 1, 0 }; -#endif - Long exp[2]; - Bigint *B[2]; - int k, rv[2]; - - B[0] = Balloc(2); - B[0]->wds = 4; - k = strtoIg(s, sp, &fpi, exp, B, rv); - ULtodd((ULong*)f0, B[0]->x, exp[0], rv[0]); - Bfree(B[0]); - if (B[1]) { - ULtodd((ULong*)f1, B[1]->x, exp[1], rv[1]); - Bfree(B[1]); - } - else { - ((ULong*)f1)[0] = ((ULong*)f0)[0]; - ((ULong*)f1)[1] = ((ULong*)f0)[1]; - ((ULong*)f1)[2] = ((ULong*)f0)[2]; - ((ULong*)f1)[3] = ((ULong*)f0)[3]; - } - return k; - } diff --git a/gdtoa/strtoIf.c b/gdtoa/strtoIf.c deleted file mode 100644 index 65ecab2e..00000000 --- a/gdtoa/strtoIf.c +++ /dev/null @@ -1,58 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtoIf(s, sp, f0, f1) CONST char *s; char **sp; float *f0, *f1; -#else -strtoIf(CONST char *s, char **sp, float *f0, float *f1) -#endif -{ - static FPI fpi = { 24, 1-127-24+1, 254-127-24+1, 1, SI }; - Long exp[2]; - Bigint *B[2]; - int k, rv[2]; - - B[0] = Balloc(0); - B[0]->wds = 1; - k = strtoIg(s, sp, &fpi, exp, B, rv); - ULtof((ULong*)f0, B[0]->x, exp[0], rv[0]); - Bfree(B[0]); - if (B[1]) { - ULtof((ULong*)f1, B[1]->x, exp[1], rv[1]); - Bfree(B[1]); - } - else - *(ULong*)f1 = *(ULong*)f0; - return k; - } diff --git a/gdtoa/strtoIg.c b/gdtoa/strtoIg.c deleted file mode 100644 index ec46a3eb..00000000 --- a/gdtoa/strtoIg.c +++ /dev/null @@ -1,133 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtoIg(s00, se, fpi, exp, B, rvp) CONST char *s00; char **se; FPI *fpi; Long *exp; Bigint **B; int *rvp; -#else -strtoIg(CONST char *s00, char **se, FPI *fpi, Long *exp, Bigint **B, int *rvp) -#endif -{ - Bigint *b, *b1; - int i, nb, nw, nw1, rv, rv1, swap; - unsigned int nb1, nb11; - Long e1; - - b = *B; - rv = strtodg(s00, se, fpi, exp, b->x); - if (!(rv & STRTOG_Inexact)) { - B[1] = 0; - return *rvp = rv; - } - e1 = exp[0]; - rv1 = rv ^ STRTOG_Inexact; - b1 = Balloc(b->k); - Bcopy(b1, b); - nb = fpi->nbits; - nb1 = nb & 31; - nb11 = (nb1 - 1) & 31; - nw = b->wds; - nw1 = nw - 1; - if (rv & STRTOG_Inexlo) { - swap = 0; - b1 = increment(b1); - if (fpi->sudden_underflow - && (rv & STRTOG_Retmask) == STRTOG_Zero) { - b1->x[0] = 0; - b1->x[nw1] = 1L << nb11; - rv1 += STRTOG_Normal - STRTOG_Zero; - rv1 &= ~STRTOG_Underflow; - goto swapcheck; - } - if (b1->wds > nw - || nb1 && b1->x[nw1] & 1L << nb1) { - if (++e1 > fpi->emax) - rv1 = STRTOG_Infinite | STRTOG_Inexhi; - rshift(b1, 1); - } - else if ((rv & STRTOG_Retmask) == STRTOG_Denormal) { - if (b1->x[nw1] & 1L << nb11) { - rv1 += STRTOG_Normal - STRTOG_Denormal; - rv1 &= ~STRTOG_Underflow; - } - } - } - else { - swap = STRTOG_Neg; - if ((rv & STRTOG_Retmask) == STRTOG_Infinite) { - b1 = set_ones(b1, nb); - e1 = fpi->emax; - rv1 = STRTOG_Normal | STRTOG_Inexlo; - goto swapcheck; - } - decrement(b1); - if ((rv & STRTOG_Retmask) == STRTOG_Denormal) { - for(i = nw1; !b1->x[i]; --i) - if (!i) { - rv1 = STRTOG_Zero | STRTOG_Inexlo; - break; - } - goto swapcheck; - } - if (!(b1->x[nw1] & 1L << nb11)) { - if (e1 == fpi->emin) { - if (fpi->sudden_underflow) - rv1 += STRTOG_Zero - STRTOG_Normal; - else - rv1 += STRTOG_Denormal - STRTOG_Normal; - rv1 |= STRTOG_Underflow; - } - else { - b1 = lshift(b1, 1); - b1->x[0] |= 1; - --e1; - } - } - } - swapcheck: - if (swap ^ (rv & STRTOG_Neg)) { - rvp[0] = rv1; - rvp[1] = rv; - B[0] = b1; - B[1] = b; - exp[1] = exp[0]; - exp[0] = e1; - } - else { - rvp[0] = rv; - rvp[1] = rv1; - B[1] = b1; - exp[1] = e1; - } - return rv; - } diff --git a/gdtoa/strtoIx.c b/gdtoa/strtoIx.c deleted file mode 100644 index 783a631f..00000000 --- a/gdtoa/strtoIx.c +++ /dev/null @@ -1,64 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtoIx(s, sp, a, b) CONST char *s; char **sp; void *a; void *b; -#else -strtoIx(CONST char *s, char **sp, void *a, void *b) -#endif -{ - static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI }; - Long exp[2]; - Bigint *B[2]; - int k, rv[2]; - UShort *L = (UShort *)a, *M = (UShort *)b; - - B[0] = Balloc(1); - B[0]->wds = 2; - k = strtoIg(s, sp, &fpi, exp, B, rv); - ULtox(L, B[0]->x, exp[0], rv[0]); - Bfree(B[0]); - if (B[1]) { - ULtox(M, B[1]->x, exp[1], rv[1]); - Bfree(B[1]); - } - else { - M[0] = L[0]; - M[1] = L[1]; - M[2] = L[2]; - M[3] = L[3]; - M[4] = L[4]; - } - return k; - } diff --git a/gdtoa/strtoIxL.c b/gdtoa/strtoIxL.c deleted file mode 100644 index 869bfd16..00000000 --- a/gdtoa/strtoIxL.c +++ /dev/null @@ -1,62 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtoIxL(s, sp, a, b) CONST char *s; char **sp; void *a; void *b; -#else -strtoIxL(CONST char *s, char **sp, void *a, void *b) -#endif -{ - static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI }; - Long exp[2]; - Bigint *B[2]; - int k, rv[2]; - ULong *L = (ULong *)a, *M = (ULong *)b; - - B[0] = Balloc(1); - B[0]->wds = 2; - k = strtoIg(s, sp, &fpi, exp, B, rv); - ULtoxL(L, B[0]->x, exp[0], rv[0]); - Bfree(B[0]); - if (B[1]) { - ULtoxL(M, B[1]->x, exp[1], rv[1]); - Bfree(B[1]); - } - else { - M[0] = L[0]; - M[1] = L[1]; - M[2] = L[2]; - } - return k; - } diff --git a/gdtoa/strtod.c b/gdtoa/strtod.c deleted file mode 100644 index 66a3baa2..00000000 --- a/gdtoa/strtod.c +++ /dev/null @@ -1,982 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998-2001 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" -#ifndef NO_FENV_H -#include <fenv.h> -#endif - -#ifdef USE_LOCALE -#include "locale.h" -#endif - -#ifdef IEEE_Arith -#ifndef NO_IEEE_Scale -#define Avoid_Underflow -#undef tinytens -/* The factor of 2^53 in tinytens[4] helps us avoid setting the underflow */ -/* flag unnecessarily. It leads to a song and dance at the end of strtod. */ -static CONST double tinytens[] = { 1e-16, 1e-32, 1e-64, 1e-128, - 9007199254740992.e-256 - }; -#endif -#endif - -#ifdef Honor_FLT_ROUNDS -#define Rounding rounding -#undef Check_FLT_ROUNDS -#define Check_FLT_ROUNDS -#else -#define Rounding Flt_Rounds -#endif - - double -strtod -#ifdef KR_headers - (s00, se) CONST char *s00; char **se; -#else - (CONST char *s00, char **se) -#endif -{ -#ifdef Avoid_Underflow - int scale; -#endif - int bb2, bb5, bbe, bd2, bd5, bbbits, bs2, c, decpt, dsign, - e, e1, esign, i, j, k, nd, nd0, nf, nz, nz0, sign; - CONST char *s, *s0, *s1; - double aadj, aadj1, adj, rv, rv0; - Long L; - ULong y, z; - Bigint *bb, *bb1, *bd, *bd0, *bs, *delta; -#ifdef SET_INEXACT - int inexact, oldinexact; -#endif -#ifdef Honor_FLT_ROUNDS - int rounding; -#endif - - sign = nz0 = nz = decpt = 0; - dval(rv) = 0.; - for(s = s00;;s++) switch(*s) { - case '-': - sign = 1; - /* no break */ - case '+': - if (*++s) - goto break2; - /* no break */ - case 0: - goto ret0; - case '\t': - case '\n': - case '\v': - case '\f': - case '\r': - case ' ': - continue; - default: - goto break2; - } - break2: - if (*s == '0') { -#ifndef NO_HEX_FP - { - static FPI fpi = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI }; - Long exp; - ULong bits[2]; - switch(s[1]) { - case 'x': - case 'X': - { -#if defined(FE_DOWNWARD) && defined(FE_TONEAREST) && defined(FE_TOWARDZERO) && defined(FE_UPWARD) - FPI fpi1 = fpi; - switch(fegetround()) { - case FE_TOWARDZERO: fpi1.rounding = 0; break; - case FE_UPWARD: fpi1.rounding = 2; break; - case FE_DOWNWARD: fpi1.rounding = 3; - } -#else -#define fpi1 fpi -#endif - switch((i = gethex(&s, &fpi1, &exp, &bb, sign)) & STRTOG_Retmask) { - case STRTOG_NoNumber: - s = s00; - sign = 0; - case STRTOG_Zero: - break; - default: - if (bb) { - copybits(bits, fpi.nbits, bb); - Bfree(bb); - } - ULtod(((U*)&rv)->L, bits, exp, i); - }} - goto ret; - } - } -#endif - nz0 = 1; - while(*++s == '0') ; - if (!*s) - goto ret; - } - s0 = s; - y = z = 0; - for(nd = nf = 0; (c = *s) >= '0' && c <= '9'; nd++, s++) - if (nd < 9) - y = 10*y + c - '0'; - else if (nd < 16) - z = 10*z + c - '0'; - nd0 = nd; -#ifdef USE_LOCALE - if (c == *localeconv()->decimal_point) -#else - if (c == '.') -#endif - { - decpt = 1; - c = *++s; - if (!nd) { - for(; c == '0'; c = *++s) - nz++; - if (c > '0' && c <= '9') { - s0 = s; - nf += nz; - nz = 0; - goto have_dig; - } - goto dig_done; - } - for(; c >= '0' && c <= '9'; c = *++s) { - have_dig: - nz++; - if (c -= '0') { - nf += nz; - for(i = 1; i < nz; i++) - if (nd++ < 9) - y *= 10; - else if (nd <= DBL_DIG + 1) - z *= 10; - if (nd++ < 9) - y = 10*y + c; - else if (nd <= DBL_DIG + 1) - z = 10*z + c; - nz = 0; - } - } - } - dig_done: - e = 0; - if (c == 'e' || c == 'E') { - if (!nd && !nz && !nz0) { - goto ret0; - } - s00 = s; - esign = 0; - switch(c = *++s) { - case '-': - esign = 1; - case '+': - c = *++s; - } - if (c >= '0' && c <= '9') { - while(c == '0') - c = *++s; - if (c > '0' && c <= '9') { - L = c - '0'; - s1 = s; - while((c = *++s) >= '0' && c <= '9') - L = 10*L + c - '0'; - if (s - s1 > 8 || L > 19999) - /* Avoid confusion from exponents - * so large that e might overflow. - */ - e = 19999; /* safe for 16 bit ints */ - else - e = (int)L; - if (esign) - e = -e; - } - else - e = 0; - } - else - s = s00; - } - if (!nd) { - if (!nz && !nz0) { -#ifdef INFNAN_CHECK - /* Check for Nan and Infinity */ - ULong bits[2]; - static FPI fpinan = /* only 52 explicit bits */ - { 52, 1-1023-53+1, 2046-1023-53+1, 1, SI }; - if (!decpt) - switch(c) { - case 'i': - case 'I': - if (match(&s,"nf")) { - --s; - if (!match(&s,"inity")) - ++s; - word0(rv) = 0x7ff00000; - word1(rv) = 0; - goto ret; - } - break; - case 'n': - case 'N': - if (match(&s, "an")) { -#ifndef No_Hex_NaN - if (*s == '(' /*)*/ - && hexnan(&s, &fpinan, bits) - == STRTOG_NaNbits) { - word0(rv) = 0x7ff00000 | bits[1]; - word1(rv) = bits[0]; - } - else { -#endif - word0(rv) = NAN_WORD0; - word1(rv) = NAN_WORD1; -#ifndef No_Hex_NaN - } -#endif - goto ret; - } - } -#endif /* INFNAN_CHECK */ - ret0: - s = s00; - sign = 0; - } - goto ret; - } - e1 = e -= nf; - - /* Now we have nd0 digits, starting at s0, followed by a - * decimal point, followed by nd-nd0 digits. The number we're - * after is the integer represented by those digits times - * 10**e */ - - if (!nd0) - nd0 = nd; - k = nd < DBL_DIG + 1 ? nd : DBL_DIG + 1; - dval(rv) = y; - if (k > 9) { -#ifdef SET_INEXACT - if (k > DBL_DIG) - oldinexact = get_inexact(); -#endif - dval(rv) = tens[k - 9] * dval(rv) + z; - } - bd0 = 0; - if (nd <= DBL_DIG -#ifndef RND_PRODQUOT -#ifndef Honor_FLT_ROUNDS - && Flt_Rounds == 1 -#endif -#endif - ) { - if (!e) - goto ret; - if (e > 0) { - if (e <= Ten_pmax) { -#ifdef VAX - goto vax_ovfl_check; -#else -#ifdef Honor_FLT_ROUNDS - /* round correctly FLT_ROUNDS = 2 or 3 */ - if (sign) { - rv = -rv; - sign = 0; - } -#endif - /* rv = */ rounded_product(dval(rv), tens[e]); - goto ret; -#endif - } - i = DBL_DIG - nd; - if (e <= Ten_pmax + i) { - /* A fancier test would sometimes let us do - * this for larger i values. - */ -#ifdef Honor_FLT_ROUNDS - /* round correctly FLT_ROUNDS = 2 or 3 */ - if (sign) { - rv = -rv; - sign = 0; - } -#endif - e -= i; - dval(rv) *= tens[i]; -#ifdef VAX - /* VAX exponent range is so narrow we must - * worry about overflow here... - */ - vax_ovfl_check: - word0(rv) -= P*Exp_msk1; - /* rv = */ rounded_product(dval(rv), tens[e]); - if ((word0(rv) & Exp_mask) - > Exp_msk1*(DBL_MAX_EXP+Bias-1-P)) - goto ovfl; - word0(rv) += P*Exp_msk1; -#else - /* rv = */ rounded_product(dval(rv), tens[e]); -#endif - goto ret; - } - } -#ifndef Inaccurate_Divide - else if (e >= -Ten_pmax) { -#ifdef Honor_FLT_ROUNDS - /* round correctly FLT_ROUNDS = 2 or 3 */ - if (sign) { - rv = -rv; - sign = 0; - } -#endif - /* rv = */ rounded_quotient(dval(rv), tens[-e]); - goto ret; - } -#endif - } - e1 += nd - k; - -#ifdef IEEE_Arith -#ifdef SET_INEXACT - inexact = 1; - if (k <= DBL_DIG) - oldinexact = get_inexact(); -#endif -#ifdef Avoid_Underflow - scale = 0; -#endif -#ifdef Honor_FLT_ROUNDS - if ((rounding = Flt_Rounds) >= 2) { - if (sign) - rounding = rounding == 2 ? 0 : 2; - else - if (rounding != 2) - rounding = 0; - } -#endif -#endif /*IEEE_Arith*/ - - /* Get starting approximation = rv * 10**e1 */ - - if (e1 > 0) { - if ( (i = e1 & 15) !=0) - dval(rv) *= tens[i]; - if (e1 &= ~15) { - if (e1 > DBL_MAX_10_EXP) { - ovfl: -#ifndef NO_ERRNO - errno = ERANGE; -#endif - /* Can't trust HUGE_VAL */ -#ifdef IEEE_Arith -#ifdef Honor_FLT_ROUNDS - switch(rounding) { - case 0: /* toward 0 */ - case 3: /* toward -infinity */ - word0(rv) = Big0; - word1(rv) = Big1; - break; - default: - word0(rv) = Exp_mask; - word1(rv) = 0; - } -#else /*Honor_FLT_ROUNDS*/ - word0(rv) = Exp_mask; - word1(rv) = 0; -#endif /*Honor_FLT_ROUNDS*/ -#ifdef SET_INEXACT - /* set overflow bit */ - dval(rv0) = 1e300; - dval(rv0) *= dval(rv0); -#endif -#else /*IEEE_Arith*/ - word0(rv) = Big0; - word1(rv) = Big1; -#endif /*IEEE_Arith*/ - if (bd0) - goto retfree; - goto ret; - } - e1 >>= 4; - for(j = 0; e1 > 1; j++, e1 >>= 1) - if (e1 & 1) - dval(rv) *= bigtens[j]; - /* The last multiplication could overflow. */ - word0(rv) -= P*Exp_msk1; - dval(rv) *= bigtens[j]; - if ((z = word0(rv) & Exp_mask) - > Exp_msk1*(DBL_MAX_EXP+Bias-P)) - goto ovfl; - if (z > Exp_msk1*(DBL_MAX_EXP+Bias-1-P)) { - /* set to largest number */ - /* (Can't trust DBL_MAX) */ - word0(rv) = Big0; - word1(rv) = Big1; - } - else - word0(rv) += P*Exp_msk1; - } - } - else if (e1 < 0) { - e1 = -e1; - if ( (i = e1 & 15) !=0) - dval(rv) /= tens[i]; - if (e1 >>= 4) { - if (e1 >= 1 << n_bigtens) - goto undfl; -#ifdef Avoid_Underflow - if (e1 & Scale_Bit) - scale = 2*P; - for(j = 0; e1 > 0; j++, e1 >>= 1) - if (e1 & 1) - dval(rv) *= tinytens[j]; - if (scale && (j = 2*P + 1 - ((word0(rv) & Exp_mask) - >> Exp_shift)) > 0) { - /* scaled rv is denormal; zap j low bits */ - if (j >= 32) { - word1(rv) = 0; - if (j >= 53) - word0(rv) = (P+2)*Exp_msk1; - else - word0(rv) &= 0xffffffff << j-32; - } - else - word1(rv) &= 0xffffffff << j; - } -#else - for(j = 0; e1 > 1; j++, e1 >>= 1) - if (e1 & 1) - dval(rv) *= tinytens[j]; - /* The last multiplication could underflow. */ - dval(rv0) = dval(rv); - dval(rv) *= tinytens[j]; - if (!dval(rv)) { - dval(rv) = 2.*dval(rv0); - dval(rv) *= tinytens[j]; -#endif - if (!dval(rv)) { - undfl: - dval(rv) = 0.; -#ifndef NO_ERRNO - errno = ERANGE; -#endif - if (bd0) - goto retfree; - goto ret; - } -#ifndef Avoid_Underflow - word0(rv) = Tiny0; - word1(rv) = Tiny1; - /* The refinement below will clean - * this approximation up. - */ - } -#endif - } - } - - /* Now the hard part -- adjusting rv to the correct value.*/ - - /* Put digits into bd: true value = bd * 10^e */ - - bd0 = s2b(s0, nd0, nd, y); - - for(;;) { - bd = Balloc(bd0->k); - Bcopy(bd, bd0); - bb = d2b(dval(rv), &bbe, &bbbits); /* rv = bb * 2^bbe */ - bs = i2b(1); - - if (e >= 0) { - bb2 = bb5 = 0; - bd2 = bd5 = e; - } - else { - bb2 = bb5 = -e; - bd2 = bd5 = 0; - } - if (bbe >= 0) - bb2 += bbe; - else - bd2 -= bbe; - bs2 = bb2; -#ifdef Honor_FLT_ROUNDS - if (rounding != 1) - bs2++; -#endif -#ifdef Avoid_Underflow - j = bbe - scale; - i = j + bbbits - 1; /* logb(rv) */ - if (i < Emin) /* denormal */ - j += P - Emin; - else - j = P + 1 - bbbits; -#else /*Avoid_Underflow*/ -#ifdef Sudden_Underflow -#ifdef IBM - j = 1 + 4*P - 3 - bbbits + ((bbe + bbbits - 1) & 3); -#else - j = P + 1 - bbbits; -#endif -#else /*Sudden_Underflow*/ - j = bbe; - i = j + bbbits - 1; /* logb(rv) */ - if (i < Emin) /* denormal */ - j += P - Emin; - else - j = P + 1 - bbbits; -#endif /*Sudden_Underflow*/ -#endif /*Avoid_Underflow*/ - bb2 += j; - bd2 += j; -#ifdef Avoid_Underflow - bd2 += scale; -#endif - i = bb2 < bd2 ? bb2 : bd2; - if (i > bs2) - i = bs2; - if (i > 0) { - bb2 -= i; - bd2 -= i; - bs2 -= i; - } - if (bb5 > 0) { - bs = pow5mult(bs, bb5); - bb1 = mult(bs, bb); - Bfree(bb); - bb = bb1; - } - if (bb2 > 0) - bb = lshift(bb, bb2); - if (bd5 > 0) - bd = pow5mult(bd, bd5); - if (bd2 > 0) - bd = lshift(bd, bd2); - if (bs2 > 0) - bs = lshift(bs, bs2); - delta = diff(bb, bd); - dsign = delta->sign; - delta->sign = 0; - i = cmp(delta, bs); -#ifdef Honor_FLT_ROUNDS - if (rounding != 1) { - if (i < 0) { - /* Error is less than an ulp */ - if (!delta->x[0] && delta->wds <= 1) { - /* exact */ -#ifdef SET_INEXACT - inexact = 0; -#endif - break; - } - if (rounding) { - if (dsign) { - adj = 1.; - goto apply_adj; - } - } - else if (!dsign) { - adj = -1.; - if (!word1(rv) - && !(word0(rv) & Frac_mask)) { - y = word0(rv) & Exp_mask; -#ifdef Avoid_Underflow - if (!scale || y > 2*P*Exp_msk1) -#else - if (y) -#endif - { - delta = lshift(delta,Log2P); - if (cmp(delta, bs) <= 0) - adj = -0.5; - } - } - apply_adj: -#ifdef Avoid_Underflow - if (scale && (y = word0(rv) & Exp_mask) - <= 2*P*Exp_msk1) - word0(adj) += (2*P+1)*Exp_msk1 - y; -#else -#ifdef Sudden_Underflow - if ((word0(rv) & Exp_mask) <= - P*Exp_msk1) { - word0(rv) += P*Exp_msk1; - dval(rv) += adj*ulp(dval(rv)); - word0(rv) -= P*Exp_msk1; - } - else -#endif /*Sudden_Underflow*/ -#endif /*Avoid_Underflow*/ - dval(rv) += adj*ulp(dval(rv)); - } - break; - } - adj = ratio(delta, bs); - if (adj < 1.) - adj = 1.; - if (adj <= 0x7ffffffe) { - /* adj = rounding ? ceil(adj) : floor(adj); */ - y = adj; - if (y != adj) { - if (!((rounding>>1) ^ dsign)) - y++; - adj = y; - } - } -#ifdef Avoid_Underflow - if (scale && (y = word0(rv) & Exp_mask) <= 2*P*Exp_msk1) - word0(adj) += (2*P+1)*Exp_msk1 - y; -#else -#ifdef Sudden_Underflow - if ((word0(rv) & Exp_mask) <= P*Exp_msk1) { - word0(rv) += P*Exp_msk1; - adj *= ulp(dval(rv)); - if (dsign) - dval(rv) += adj; - else - dval(rv) -= adj; - word0(rv) -= P*Exp_msk1; - goto cont; - } -#endif /*Sudden_Underflow*/ -#endif /*Avoid_Underflow*/ - adj *= ulp(dval(rv)); - if (dsign) - dval(rv) += adj; - else - dval(rv) -= adj; - goto cont; - } -#endif /*Honor_FLT_ROUNDS*/ - - if (i < 0) { - /* Error is less than half an ulp -- check for - * special case of mantissa a power of two. - */ - if (dsign || word1(rv) || word0(rv) & Bndry_mask -#ifdef IEEE_Arith -#ifdef Avoid_Underflow - || (word0(rv) & Exp_mask) <= (2*P+1)*Exp_msk1 -#else - || (word0(rv) & Exp_mask) <= Exp_msk1 -#endif -#endif - ) { -#ifdef SET_INEXACT - if (!delta->x[0] && delta->wds <= 1) - inexact = 0; -#endif - break; - } - if (!delta->x[0] && delta->wds <= 1) { - /* exact result */ -#ifdef SET_INEXACT - inexact = 0; -#endif - break; - } - delta = lshift(delta,Log2P); - if (cmp(delta, bs) > 0) - goto drop_down; - break; - } - if (i == 0) { - /* exactly half-way between */ - if (dsign) { - if ((word0(rv) & Bndry_mask1) == Bndry_mask1 - && word1(rv) == ( -#ifdef Avoid_Underflow - (scale && (y = word0(rv) & Exp_mask) <= 2*P*Exp_msk1) - ? (0xffffffff & (0xffffffff << (2*P+1-(y>>Exp_shift)))) : -#endif - 0xffffffff)) { - /*boundary case -- increment exponent*/ - word0(rv) = (word0(rv) & Exp_mask) - + Exp_msk1 -#ifdef IBM - | Exp_msk1 >> 4 -#endif - ; - word1(rv) = 0; -#ifdef Avoid_Underflow - dsign = 0; -#endif - break; - } - } - else if (!(word0(rv) & Bndry_mask) && !word1(rv)) { - drop_down: - /* boundary case -- decrement exponent */ -#ifdef Sudden_Underflow /*{{*/ - L = word0(rv) & Exp_mask; -#ifdef IBM - if (L < Exp_msk1) -#else -#ifdef Avoid_Underflow - if (L <= (scale ? (2*P+1)*Exp_msk1 : Exp_msk1)) -#else - if (L <= Exp_msk1) -#endif /*Avoid_Underflow*/ -#endif /*IBM*/ - goto undfl; - L -= Exp_msk1; -#else /*Sudden_Underflow}{*/ -#ifdef Avoid_Underflow - if (scale) { - L = word0(rv) & Exp_mask; - if (L <= (2*P+1)*Exp_msk1) { - if (L > (P+2)*Exp_msk1) - /* round even ==> */ - /* accept rv */ - break; - /* rv = smallest denormal */ - goto undfl; - } - } -#endif /*Avoid_Underflow*/ - L = (word0(rv) & Exp_mask) - Exp_msk1; -#endif /*Sudden_Underflow}*/ - word0(rv) = L | Bndry_mask1; - word1(rv) = 0xffffffff; -#ifdef IBM - goto cont; -#else - break; -#endif - } -#ifndef ROUND_BIASED - if (!(word1(rv) & LSB)) - break; -#endif - if (dsign) - dval(rv) += ulp(dval(rv)); -#ifndef ROUND_BIASED - else { - dval(rv) -= ulp(dval(rv)); -#ifndef Sudden_Underflow - if (!dval(rv)) - goto undfl; -#endif - } -#ifdef Avoid_Underflow - dsign = 1 - dsign; -#endif -#endif - break; - } - if ((aadj = ratio(delta, bs)) <= 2.) { - if (dsign) - aadj = aadj1 = 1.; - else if (word1(rv) || word0(rv) & Bndry_mask) { -#ifndef Sudden_Underflow - if (word1(rv) == Tiny1 && !word0(rv)) - goto undfl; -#endif - aadj = 1.; - aadj1 = -1.; - } - else { - /* special case -- power of FLT_RADIX to be */ - /* rounded down... */ - - if (aadj < 2./FLT_RADIX) - aadj = 1./FLT_RADIX; - else - aadj *= 0.5; - aadj1 = -aadj; - } - } - else { - aadj *= 0.5; - aadj1 = dsign ? aadj : -aadj; -#ifdef Check_FLT_ROUNDS - switch(Rounding) { - case 2: /* towards +infinity */ - aadj1 -= 0.5; - break; - case 0: /* towards 0 */ - case 3: /* towards -infinity */ - aadj1 += 0.5; - } -#else - if (Flt_Rounds == 0) - aadj1 += 0.5; -#endif /*Check_FLT_ROUNDS*/ - } - y = word0(rv) & Exp_mask; - - /* Check for overflow */ - - if (y == Exp_msk1*(DBL_MAX_EXP+Bias-1)) { - dval(rv0) = dval(rv); - word0(rv) -= P*Exp_msk1; - adj = aadj1 * ulp(dval(rv)); - dval(rv) += adj; - if ((word0(rv) & Exp_mask) >= - Exp_msk1*(DBL_MAX_EXP+Bias-P)) { - if (word0(rv0) == Big0 && word1(rv0) == Big1) - goto ovfl; - word0(rv) = Big0; - word1(rv) = Big1; - goto cont; - } - else - word0(rv) += P*Exp_msk1; - } - else { -#ifdef Avoid_Underflow - if (scale && y <= 2*P*Exp_msk1) { - if (aadj <= 0x7fffffff) { - if ((z = aadj) <= 0) - z = 1; - aadj = z; - aadj1 = dsign ? aadj : -aadj; - } - word0(aadj1) += (2*P+1)*Exp_msk1 - y; - } - adj = aadj1 * ulp(dval(rv)); - dval(rv) += adj; -#else -#ifdef Sudden_Underflow - if ((word0(rv) & Exp_mask) <= P*Exp_msk1) { - dval(rv0) = dval(rv); - word0(rv) += P*Exp_msk1; - adj = aadj1 * ulp(dval(rv)); - dval(rv) += adj; -#ifdef IBM - if ((word0(rv) & Exp_mask) < P*Exp_msk1) -#else - if ((word0(rv) & Exp_mask) <= P*Exp_msk1) -#endif - { - if (word0(rv0) == Tiny0 - && word1(rv0) == Tiny1) - goto undfl; - word0(rv) = Tiny0; - word1(rv) = Tiny1; - goto cont; - } - else - word0(rv) -= P*Exp_msk1; - } - else { - adj = aadj1 * ulp(dval(rv)); - dval(rv) += adj; - } -#else /*Sudden_Underflow*/ - /* Compute adj so that the IEEE rounding rules will - * correctly round rv + adj in some half-way cases. - * If rv * ulp(rv) is denormalized (i.e., - * y <= (P-1)*Exp_msk1), we must adjust aadj to avoid - * trouble from bits lost to denormalization; - * example: 1.2e-307 . - */ - if (y <= (P-1)*Exp_msk1 && aadj > 1.) { - aadj1 = (double)(int)(aadj + 0.5); - if (!dsign) - aadj1 = -aadj1; - } - adj = aadj1 * ulp(dval(rv)); - dval(rv) += adj; -#endif /*Sudden_Underflow*/ -#endif /*Avoid_Underflow*/ - } - z = word0(rv) & Exp_mask; -#ifndef SET_INEXACT -#ifdef Avoid_Underflow - if (!scale) -#endif - if (y == z) { - /* Can we stop now? */ - L = (Long)aadj; - aadj -= L; - /* The tolerances below are conservative. */ - if (dsign || word1(rv) || word0(rv) & Bndry_mask) { - if (aadj < .4999999 || aadj > .5000001) - break; - } - else if (aadj < .4999999/FLT_RADIX) - break; - } -#endif - cont: - Bfree(bb); - Bfree(bd); - Bfree(bs); - Bfree(delta); - } -#ifdef SET_INEXACT - if (inexact) { - if (!oldinexact) { - word0(rv0) = Exp_1 + (70 << Exp_shift); - word1(rv0) = 0; - dval(rv0) += 1.; - } - } - else if (!oldinexact) - clear_inexact(); -#endif -#ifdef Avoid_Underflow - if (scale) { - word0(rv0) = Exp_1 - 2*P*Exp_msk1; - word1(rv0) = 0; - dval(rv) *= dval(rv0); -#ifndef NO_ERRNO - /* try to avoid the bug of testing an 8087 register value */ - if (word0(rv) == 0 && word1(rv) == 0) - errno = ERANGE; -#endif - } -#endif /* Avoid_Underflow */ -#ifdef SET_INEXACT - if (inexact && !(word0(rv) & Exp_mask)) { - /* set underflow bit */ - dval(rv0) = 1e-300; - dval(rv0) *= dval(rv0); - } -#endif - retfree: - Bfree(bb); - Bfree(bd); - Bfree(bs); - Bfree(bd0); - Bfree(delta); - ret: - if (se) - *se = (char *)s; - return sign ? -dval(rv) : dval(rv); - } - diff --git a/gdtoa/strtodI.c b/gdtoa/strtodI.c deleted file mode 100644 index 98f88911..00000000 --- a/gdtoa/strtodI.c +++ /dev/null @@ -1,167 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - static double -#ifdef KR_headers -ulpdown(d) double *d; -#else -ulpdown(double *d) -#endif -{ - double u; - ULong *L = (ULong*)d; - - u = ulp(*d); - if (!(L[_1] | L[_0] & 0xfffff) - && (L[_0] & 0x7ff00000) > 0x00100000) - u *= 0.5; - return u; - } - - int -#ifdef KR_headers -strtodI(s, sp, dd) CONST char *s; char **sp; double *dd; -#else -strtodI(CONST char *s, char **sp, double *dd) -#endif -{ - static FPI fpi = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI }; - ULong bits[2], sign; - Long exp; - int j, k; - typedef union { - double d[2]; - ULong L[4]; - } U; - U *u; - - k = strtodg(s, sp, &fpi, &exp, bits); - u = (U*)dd; - sign = k & STRTOG_Neg ? 0x80000000L : 0; - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - u->d[0] = u->d[1] = 0.; - break; - - case STRTOG_Zero: - u->d[0] = u->d[1] = 0.; -#ifdef Sudden_Underflow - if (k & STRTOG_Inexact) { - if (sign) - u->L[_0] = 0x80100000L; - else - u->L[2+_0] = 0x100000L; - } - break; -#else - goto contain; -#endif - - case STRTOG_Denormal: - u->L[_1] = bits[0]; - u->L[_0] = bits[1]; - goto contain; - - case STRTOG_Normal: - u->L[_1] = bits[0]; - u->L[_0] = (bits[1] & ~0x100000) | ((exp + 0x3ff + 52) << 20); - contain: - j = k & STRTOG_Inexact; - if (sign) { - u->L[_0] |= sign; - j = STRTOG_Inexact - j; - } - switch(j) { - case STRTOG_Inexlo: -#ifdef Sudden_Underflow - if ((u->L[_0] & 0x7ff00000) < 0x3500000) { - u->L[2+_0] = u->L[_0] + 0x3500000; - u->L[2+_1] = u->L[_1]; - u->d[1] += ulp(u->d[1]); - u->L[2+_0] -= 0x3500000; - if (!(u->L[2+_0] & 0x7ff00000)) { - u->L[2+_0] = sign; - u->L[2+_1] = 0; - } - } - else -#endif - u->d[1] = u->d[0] + ulp(u->d[0]); - break; - case STRTOG_Inexhi: - u->d[1] = u->d[0]; -#ifdef Sudden_Underflow - if ((u->L[_0] & 0x7ff00000) < 0x3500000) { - u->L[_0] += 0x3500000; - u->d[0] -= ulpdown(u->d); - u->L[_0] -= 0x3500000; - if (!(u->L[_0] & 0x7ff00000)) { - u->L[_0] = sign; - u->L[_1] = 0; - } - } - else -#endif - u->d[0] -= ulpdown(u->d); - break; - default: - u->d[1] = u->d[0]; - } - break; - - case STRTOG_Infinite: - u->L[_0] = u->L[2+_0] = sign | 0x7ff00000; - u->L[_1] = u->L[2+_1] = 0; - if (k & STRTOG_Inexact) { - if (sign) { - u->L[2+_0] = 0xffefffffL; - u->L[2+_1] = 0xffffffffL; - } - else { - u->L[_0] = 0x7fefffffL; - u->L[_1] = 0xffffffffL; - } - } - break; - - case STRTOG_NaN: - u->L[0] = u->L[2] = d_QNAN0; - u->L[1] = u->L[3] = d_QNAN1; - break; - - case STRTOG_NaNbits: - u->L[_0] = u->L[2+_0] = 0x7ff00000 | sign | bits[1]; - u->L[_1] = u->L[2+_1] = bits[0]; - } - return k; - } diff --git a/gdtoa/strtodg.c b/gdtoa/strtodg.c deleted file mode 100644 index 0c008737..00000000 --- a/gdtoa/strtodg.c +++ /dev/null @@ -1,1010 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998-2001 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#ifdef USE_LOCALE -#include "locale.h" -#endif - - static CONST int -fivesbits[] = { 0, 3, 5, 7, 10, 12, 14, 17, 19, 21, - 24, 26, 28, 31, 33, 35, 38, 40, 42, 45, - 47, 49, 52 -#ifdef VAX - , 54, 56 -#endif - }; - - Bigint * -#ifdef KR_headers -increment(b) Bigint *b; -#else -increment(Bigint *b) -#endif -{ - ULong *x, *xe; - Bigint *b1; -#ifdef Pack_16 - ULong carry = 1, y; -#endif - - x = b->x; - xe = x + b->wds; -#ifdef Pack_32 - do { - if (*x < (ULong)0xffffffffL) { - ++*x; - return b; - } - *x++ = 0; - } while(x < xe); -#else - do { - y = *x + carry; - carry = y >> 16; - *x++ = y & 0xffff; - if (!carry) - return b; - } while(x < xe); - if (carry) -#endif - { - if (b->wds >= b->maxwds) { - b1 = Balloc(b->k+1); - Bcopy(b1,b); - Bfree(b); - b = b1; - } - b->x[b->wds++] = 1; - } - return b; - } - - int -#ifdef KR_headers -decrement(b) Bigint *b; -#else -decrement(Bigint *b) -#endif -{ - ULong *x, *xe; -#ifdef Pack_16 - ULong borrow = 1, y; -#endif - - x = b->x; - xe = x + b->wds; -#ifdef Pack_32 - do { - if (*x) { - --*x; - break; - } - *x++ = 0xffffffffL; - } - while(x < xe); -#else - do { - y = *x - borrow; - borrow = (y & 0x10000) >> 16; - *x++ = y & 0xffff; - } while(borrow && x < xe); -#endif - return STRTOG_Inexlo; - } - - static int -#ifdef KR_headers -all_on(b, n) Bigint *b; int n; -#else -all_on(Bigint *b, int n) -#endif -{ - ULong *x, *xe; - - x = b->x; - xe = x + (n >> kshift); - while(x < xe) - if ((*x++ & ALL_ON) != ALL_ON) - return 0; - if (n &= kmask) - return ((*x | (ALL_ON << n)) & ALL_ON) == ALL_ON; - return 1; - } - - Bigint * -#ifdef KR_headers -set_ones(b, n) Bigint *b; int n; -#else -set_ones(Bigint *b, int n) -#endif -{ - int k; - ULong *x, *xe; - - k = (n + ((1 << kshift) - 1)) >> kshift; - if (b->k < k) { - Bfree(b); - b = Balloc(k); - } - k = n >> kshift; - if (n &= kmask) - k++; - b->wds = k; - x = b->x; - xe = x + k; - while(x < xe) - *x++ = ALL_ON; - if (n) - x[-1] >>= ULbits - n; - return b; - } - - static int -rvOK -#ifdef KR_headers - (d, fpi, exp, bits, exact, rd, irv) - double d; FPI *fpi; Long *exp; ULong *bits; int exact, rd, *irv; -#else - (double d, FPI *fpi, Long *exp, ULong *bits, int exact, int rd, int *irv) -#endif -{ - Bigint *b; - ULong carry, inex, lostbits; - int bdif, e, j, k, k1, nb, rv; - - carry = rv = 0; - b = d2b(d, &e, &bdif); - bdif -= nb = fpi->nbits; - e += bdif; - if (bdif <= 0) { - if (exact) - goto trunc; - goto ret; - } - if (P == nb) { - if ( -#ifndef IMPRECISE_INEXACT - exact && -#endif - fpi->rounding == -#ifdef RND_PRODQUOT - FPI_Round_near -#else - Flt_Rounds -#endif - ) goto trunc; - goto ret; - } - switch(rd) { - case 1: - goto trunc; - case 2: - break; - default: /* round near */ - k = bdif - 1; - if (k < 0) - goto trunc; - if (!k) { - if (!exact) - goto ret; - if (b->x[0] & 2) - break; - goto trunc; - } - if (b->x[k>>kshift] & ((ULong)1 << (k & kmask))) - break; - goto trunc; - } - /* "break" cases: round up 1 bit, then truncate; bdif > 0 */ - carry = 1; - trunc: - inex = lostbits = 0; - if (bdif > 0) { - if ( (lostbits = any_on(b, bdif)) !=0) - inex = STRTOG_Inexlo; - rshift(b, bdif); - if (carry) { - inex = STRTOG_Inexhi; - b = increment(b); - if ( (j = nb & kmask) !=0) - j = ULbits - j; - if (hi0bits(b->x[b->wds - 1]) != j) { - if (!lostbits) - lostbits = b->x[0] & 1; - rshift(b, 1); - e++; - } - } - } - else if (bdif < 0) - b = lshift(b, -bdif); - if (e < fpi->emin) { - k = fpi->emin - e; - e = fpi->emin; - if (k > nb || fpi->sudden_underflow) { - b->wds = inex = 0; - *irv = STRTOG_Underflow | STRTOG_Inexlo; - } - else { - k1 = k - 1; - if (k1 > 0 && !lostbits) - lostbits = any_on(b, k1); - if (!lostbits && !exact) - goto ret; - lostbits |= - carry = b->x[k1>>kshift] & (1 << (k1 & kmask)); - rshift(b, k); - *irv = STRTOG_Denormal; - if (carry) { - b = increment(b); - inex = STRTOG_Inexhi | STRTOG_Underflow; - } - else if (lostbits) - inex = STRTOG_Inexlo | STRTOG_Underflow; - } - } - else if (e > fpi->emax) { - e = fpi->emax + 1; - *irv = STRTOG_Infinite | STRTOG_Overflow | STRTOG_Inexhi; -#ifndef NO_ERRNO - errno = ERANGE; -#endif - b->wds = inex = 0; - } - *exp = e; - copybits(bits, nb, b); - *irv |= inex; - rv = 1; - ret: - Bfree(b); - return rv; - } - - static int -#ifdef KR_headers -mantbits(d) double d; -#else -mantbits(double d) -#endif -{ - ULong L; -#ifdef VAX - L = word1(d) << 16 | word1(d) >> 16; - if (L) -#else - if ( (L = word1(d)) !=0) -#endif - return P - lo0bits(&L); -#ifdef VAX - L = word0(d) << 16 | word0(d) >> 16 | Exp_msk11; -#else - L = word0(d) | Exp_msk1; -#endif - return P - 32 - lo0bits(&L); - } - - int -strtodg -#ifdef KR_headers - (s00, se, fpi, exp, bits) - CONST char *s00; char **se; FPI *fpi; Long *exp; ULong *bits; -#else - (CONST char *s00, char **se, FPI *fpi, Long *exp, ULong *bits) -#endif -{ - int abe, abits, asub; - int bb0, bb2, bb5, bbe, bd2, bd5, bbbits, bs2, c, decpt, denorm; - int dsign, e, e1, e2, emin, esign, finished, i, inex, irv; - int j, k, nbits, nd, nd0, nf, nz, nz0, rd, rvbits, rve, rve1, sign; - int sudden_underflow; - CONST char *s, *s0, *s1; - double adj, adj0, rv, tol; - Long L; - ULong y, z; - Bigint *ab, *bb, *bb1, *bd, *bd0, *bs, *delta, *rvb, *rvb0; - - irv = STRTOG_Zero; - denorm = sign = nz0 = nz = 0; - dval(rv) = 0.; - rvb = 0; - nbits = fpi->nbits; - for(s = s00;;s++) switch(*s) { - case '-': - sign = 1; - /* no break */ - case '+': - if (*++s) - goto break2; - /* no break */ - case 0: - sign = 0; - irv = STRTOG_NoNumber; - s = s00; - goto ret; - case '\t': - case '\n': - case '\v': - case '\f': - case '\r': - case ' ': - continue; - default: - goto break2; - } - break2: - if (*s == '0') { -#ifndef NO_HEX_FP - switch(s[1]) { - case 'x': - case 'X': - irv = gethex(&s, fpi, exp, &rvb, sign); - if (irv == STRTOG_NoNumber) { - s = s00; - sign = 0; - } - goto ret; - } -#endif - nz0 = 1; - while(*++s == '0') ; - if (!*s) - goto ret; - } - sudden_underflow = fpi->sudden_underflow; - s0 = s; - y = z = 0; - for(decpt = nd = nf = 0; (c = *s) >= '0' && c <= '9'; nd++, s++) - if (nd < 9) - y = 10*y + c - '0'; - else if (nd < 16) - z = 10*z + c - '0'; - nd0 = nd; -#ifdef USE_LOCALE - if (c == *localeconv()->decimal_point) -#else - if (c == '.') -#endif - { - decpt = 1; - c = *++s; - if (!nd) { - for(; c == '0'; c = *++s) - nz++; - if (c > '0' && c <= '9') { - s0 = s; - nf += nz; - nz = 0; - goto have_dig; - } - goto dig_done; - } - for(; c >= '0' && c <= '9'; c = *++s) { - have_dig: - nz++; - if (c -= '0') { - nf += nz; - for(i = 1; i < nz; i++) - if (nd++ < 9) - y *= 10; - else if (nd <= DBL_DIG + 1) - z *= 10; - if (nd++ < 9) - y = 10*y + c; - else if (nd <= DBL_DIG + 1) - z = 10*z + c; - nz = 0; - } - } - } - dig_done: - e = 0; - if (c == 'e' || c == 'E') { - if (!nd && !nz && !nz0) { - irv = STRTOG_NoNumber; - s = s00; - goto ret; - } - s00 = s; - esign = 0; - switch(c = *++s) { - case '-': - esign = 1; - case '+': - c = *++s; - } - if (c >= '0' && c <= '9') { - while(c == '0') - c = *++s; - if (c > '0' && c <= '9') { - L = c - '0'; - s1 = s; - while((c = *++s) >= '0' && c <= '9') - L = 10*L + c - '0'; - if (s - s1 > 8 || L > 19999) - /* Avoid confusion from exponents - * so large that e might overflow. - */ - e = 19999; /* safe for 16 bit ints */ - else - e = (int)L; - if (esign) - e = -e; - } - else - e = 0; - } - else - s = s00; - } - if (!nd) { - if (!nz && !nz0) { -#ifdef INFNAN_CHECK - /* Check for Nan and Infinity */ - if (!decpt) - switch(c) { - case 'i': - case 'I': - if (match(&s,"nf")) { - --s; - if (!match(&s,"inity")) - ++s; - irv = STRTOG_Infinite; - goto infnanexp; - } - break; - case 'n': - case 'N': - if (match(&s, "an")) { - irv = STRTOG_NaN; - *exp = fpi->emax + 1; -#ifndef No_Hex_NaN - if (*s == '(') /*)*/ - irv = hexnan(&s, fpi, bits); -#endif - goto infnanexp; - } - } -#endif /* INFNAN_CHECK */ - irv = STRTOG_NoNumber; - s = s00; - } - goto ret; - } - - irv = STRTOG_Normal; - e1 = e -= nf; - rd = 0; - switch(fpi->rounding & 3) { - case FPI_Round_up: - rd = 2 - sign; - break; - case FPI_Round_zero: - rd = 1; - break; - case FPI_Round_down: - rd = 1 + sign; - } - - /* Now we have nd0 digits, starting at s0, followed by a - * decimal point, followed by nd-nd0 digits. The number we're - * after is the integer represented by those digits times - * 10**e */ - - if (!nd0) - nd0 = nd; - k = nd < DBL_DIG + 1 ? nd : DBL_DIG + 1; - dval(rv) = y; - if (k > 9) - dval(rv) = tens[k - 9] * dval(rv) + z; - bd0 = 0; - if (nbits <= P && nd <= DBL_DIG) { - if (!e) { - if (rvOK(dval(rv), fpi, exp, bits, 1, rd, &irv)) - goto ret; - } - else if (e > 0) { - if (e <= Ten_pmax) { -#ifdef VAX - goto vax_ovfl_check; -#else - i = fivesbits[e] + mantbits(dval(rv)) <= P; - /* rv = */ rounded_product(dval(rv), tens[e]); - if (rvOK(dval(rv), fpi, exp, bits, i, rd, &irv)) - goto ret; - e1 -= e; - goto rv_notOK; -#endif - } - i = DBL_DIG - nd; - if (e <= Ten_pmax + i) { - /* A fancier test would sometimes let us do - * this for larger i values. - */ - e2 = e - i; - e1 -= i; - dval(rv) *= tens[i]; -#ifdef VAX - /* VAX exponent range is so narrow we must - * worry about overflow here... - */ - vax_ovfl_check: - dval(adj) = dval(rv); - word0(adj) -= P*Exp_msk1; - /* adj = */ rounded_product(dval(adj), tens[e2]); - if ((word0(adj) & Exp_mask) - > Exp_msk1*(DBL_MAX_EXP+Bias-1-P)) - goto rv_notOK; - word0(adj) += P*Exp_msk1; - dval(rv) = dval(adj); -#else - /* rv = */ rounded_product(dval(rv), tens[e2]); -#endif - if (rvOK(dval(rv), fpi, exp, bits, 0, rd, &irv)) - goto ret; - e1 -= e2; - } - } -#ifndef Inaccurate_Divide - else if (e >= -Ten_pmax) { - /* rv = */ rounded_quotient(dval(rv), tens[-e]); - if (rvOK(dval(rv), fpi, exp, bits, 0, rd, &irv)) - goto ret; - e1 -= e; - } -#endif - } - rv_notOK: - e1 += nd - k; - - /* Get starting approximation = rv * 10**e1 */ - - e2 = 0; - if (e1 > 0) { - if ( (i = e1 & 15) !=0) - dval(rv) *= tens[i]; - if (e1 &= ~15) { - e1 >>= 4; - while(e1 >= (1 << n_bigtens-1)) { - e2 += ((word0(rv) & Exp_mask) - >> Exp_shift1) - Bias; - word0(rv) &= ~Exp_mask; - word0(rv) |= Bias << Exp_shift1; - dval(rv) *= bigtens[n_bigtens-1]; - e1 -= 1 << n_bigtens-1; - } - e2 += ((word0(rv) & Exp_mask) >> Exp_shift1) - Bias; - word0(rv) &= ~Exp_mask; - word0(rv) |= Bias << Exp_shift1; - for(j = 0; e1 > 0; j++, e1 >>= 1) - if (e1 & 1) - dval(rv) *= bigtens[j]; - } - } - else if (e1 < 0) { - e1 = -e1; - if ( (i = e1 & 15) !=0) - dval(rv) /= tens[i]; - if (e1 &= ~15) { - e1 >>= 4; - while(e1 >= (1 << n_bigtens-1)) { - e2 += ((word0(rv) & Exp_mask) - >> Exp_shift1) - Bias; - word0(rv) &= ~Exp_mask; - word0(rv) |= Bias << Exp_shift1; - dval(rv) *= tinytens[n_bigtens-1]; - e1 -= 1 << n_bigtens-1; - } - e2 += ((word0(rv) & Exp_mask) >> Exp_shift1) - Bias; - word0(rv) &= ~Exp_mask; - word0(rv) |= Bias << Exp_shift1; - for(j = 0; e1 > 0; j++, e1 >>= 1) - if (e1 & 1) - dval(rv) *= tinytens[j]; - } - } -#ifdef IBM - /* e2 is a correction to the (base 2) exponent of the return - * value, reflecting adjustments above to avoid overflow in the - * native arithmetic. For native IBM (base 16) arithmetic, we - * must multiply e2 by 4 to change from base 16 to 2. - */ - e2 <<= 2; -#endif - rvb = d2b(dval(rv), &rve, &rvbits); /* rv = rvb * 2^rve */ - rve += e2; - if ((j = rvbits - nbits) > 0) { - rshift(rvb, j); - rvbits = nbits; - rve += j; - } - bb0 = 0; /* trailing zero bits in rvb */ - e2 = rve + rvbits - nbits; - if (e2 > fpi->emax + 1) - goto huge; - rve1 = rve + rvbits - nbits; - if (e2 < (emin = fpi->emin)) { - denorm = 1; - j = rve - emin; - if (j > 0) { - rvb = lshift(rvb, j); - rvbits += j; - } - else if (j < 0) { - rvbits += j; - if (rvbits <= 0) { - if (rvbits < -1) { - ufl: - rvb->wds = 0; - rvb->x[0] = 0; - *exp = emin; - irv = STRTOG_Underflow | STRTOG_Inexlo; - goto ret; - } - rvb->x[0] = rvb->wds = rvbits = 1; - } - else - rshift(rvb, -j); - } - rve = rve1 = emin; - if (sudden_underflow && e2 + 1 < emin) - goto ufl; - } - - /* Now the hard part -- adjusting rv to the correct value.*/ - - /* Put digits into bd: true value = bd * 10^e */ - - bd0 = s2b(s0, nd0, nd, y); - - for(;;) { - bd = Balloc(bd0->k); - Bcopy(bd, bd0); - bb = Balloc(rvb->k); - Bcopy(bb, rvb); - bbbits = rvbits - bb0; - bbe = rve + bb0; - bs = i2b(1); - - if (e >= 0) { - bb2 = bb5 = 0; - bd2 = bd5 = e; - } - else { - bb2 = bb5 = -e; - bd2 = bd5 = 0; - } - if (bbe >= 0) - bb2 += bbe; - else - bd2 -= bbe; - bs2 = bb2; - j = nbits + 1 - bbbits; - i = bbe + bbbits - nbits; - if (i < emin) /* denormal */ - j += i - emin; - bb2 += j; - bd2 += j; - i = bb2 < bd2 ? bb2 : bd2; - if (i > bs2) - i = bs2; - if (i > 0) { - bb2 -= i; - bd2 -= i; - bs2 -= i; - } - if (bb5 > 0) { - bs = pow5mult(bs, bb5); - bb1 = mult(bs, bb); - Bfree(bb); - bb = bb1; - } - bb2 -= bb0; - if (bb2 > 0) - bb = lshift(bb, bb2); - else if (bb2 < 0) - rshift(bb, -bb2); - if (bd5 > 0) - bd = pow5mult(bd, bd5); - if (bd2 > 0) - bd = lshift(bd, bd2); - if (bs2 > 0) - bs = lshift(bs, bs2); - asub = 1; - inex = STRTOG_Inexhi; - delta = diff(bb, bd); - if (delta->wds <= 1 && !delta->x[0]) - break; - dsign = delta->sign; - delta->sign = finished = 0; - L = 0; - i = cmp(delta, bs); - if (rd && i <= 0) { - irv = STRTOG_Normal; - if ( (finished = dsign ^ (rd&1)) !=0) { - if (dsign != 0) { - irv |= STRTOG_Inexhi; - goto adj1; - } - irv |= STRTOG_Inexlo; - if (rve1 == emin) - goto adj1; - for(i = 0, j = nbits; j >= ULbits; - i++, j -= ULbits) { - if (rvb->x[i] & ALL_ON) - goto adj1; - } - if (j > 1 && lo0bits(rvb->x + i) < j - 1) - goto adj1; - rve = rve1 - 1; - rvb = set_ones(rvb, rvbits = nbits); - break; - } - irv |= dsign ? STRTOG_Inexlo : STRTOG_Inexhi; - break; - } - if (i < 0) { - /* Error is less than half an ulp -- check for - * special case of mantissa a power of two. - */ - irv = dsign - ? STRTOG_Normal | STRTOG_Inexlo - : STRTOG_Normal | STRTOG_Inexhi; - if (dsign || bbbits > 1 || denorm || rve1 == emin) - break; - delta = lshift(delta,1); - if (cmp(delta, bs) > 0) { - irv = STRTOG_Normal | STRTOG_Inexlo; - goto drop_down; - } - break; - } - if (i == 0) { - /* exactly half-way between */ - if (dsign) { - if (denorm && all_on(rvb, rvbits)) { - /*boundary case -- increment exponent*/ - rvb->wds = 1; - rvb->x[0] = 1; - rve = emin + nbits - (rvbits = 1); - irv = STRTOG_Normal | STRTOG_Inexhi; - denorm = 0; - break; - } - irv = STRTOG_Normal | STRTOG_Inexlo; - } - else if (bbbits == 1) { - irv = STRTOG_Normal; - drop_down: - /* boundary case -- decrement exponent */ - if (rve1 == emin) { - irv = STRTOG_Normal | STRTOG_Inexhi; - if (rvb->wds == 1 && rvb->x[0] == 1) - sudden_underflow = 1; - break; - } - rve -= nbits; - rvb = set_ones(rvb, rvbits = nbits); - break; - } - else - irv = STRTOG_Normal | STRTOG_Inexhi; - if (bbbits < nbits && !denorm || !(rvb->x[0] & 1)) - break; - if (dsign) { - rvb = increment(rvb); - j = kmask & (ULbits - (rvbits & kmask)); - if (hi0bits(rvb->x[rvb->wds - 1]) != j) - rvbits++; - irv = STRTOG_Normal | STRTOG_Inexhi; - } - else { - if (bbbits == 1) - goto undfl; - decrement(rvb); - irv = STRTOG_Normal | STRTOG_Inexlo; - } - break; - } - if ((dval(adj) = ratio(delta, bs)) <= 2.) { - adj1: - inex = STRTOG_Inexlo; - if (dsign) { - asub = 0; - inex = STRTOG_Inexhi; - } - else if (denorm && bbbits <= 1) { - undfl: - rvb->wds = 0; - rve = emin; - irv = STRTOG_Underflow | STRTOG_Inexlo; - break; - } - adj0 = dval(adj) = 1.; - } - else { - adj0 = dval(adj) *= 0.5; - if (dsign) { - asub = 0; - inex = STRTOG_Inexlo; - } - if (dval(adj) < 2147483647.) { - L = adj0; - adj0 -= L; - switch(rd) { - case 0: - if (adj0 >= .5) - goto inc_L; - break; - case 1: - if (asub && adj0 > 0.) - goto inc_L; - break; - case 2: - if (!asub && adj0 > 0.) { - inc_L: - L++; - inex = STRTOG_Inexact - inex; - } - } - dval(adj) = L; - } - } - y = rve + rvbits; - - /* adj *= ulp(dval(rv)); */ - /* if (asub) rv -= adj; else rv += adj; */ - - if (!denorm && rvbits < nbits) { - rvb = lshift(rvb, j = nbits - rvbits); - rve -= j; - rvbits = nbits; - } - ab = d2b(dval(adj), &abe, &abits); - if (abe < 0) - rshift(ab, -abe); - else if (abe > 0) - ab = lshift(ab, abe); - rvb0 = rvb; - if (asub) { - /* rv -= adj; */ - j = hi0bits(rvb->x[rvb->wds-1]); - rvb = diff(rvb, ab); - k = rvb0->wds - 1; - if (denorm) - /* do nothing */; - else if (rvb->wds <= k - || hi0bits( rvb->x[k]) > - hi0bits(rvb0->x[k])) { - /* unlikely; can only have lost 1 high bit */ - if (rve1 == emin) { - --rvbits; - denorm = 1; - } - else { - rvb = lshift(rvb, 1); - --rve; - --rve1; - L = finished = 0; - } - } - } - else { - rvb = sum(rvb, ab); - k = rvb->wds - 1; - if (k >= rvb0->wds - || hi0bits(rvb->x[k]) < hi0bits(rvb0->x[k])) { - if (denorm) { - if (++rvbits == nbits) - denorm = 0; - } - else { - rshift(rvb, 1); - rve++; - rve1++; - L = 0; - } - } - } - Bfree(ab); - Bfree(rvb0); - if (finished) - break; - - z = rve + rvbits; - if (y == z && L) { - /* Can we stop now? */ - tol = dval(adj) * 5e-16; /* > max rel error */ - dval(adj) = adj0 - .5; - if (dval(adj) < -tol) { - if (adj0 > tol) { - irv |= inex; - break; - } - } - else if (dval(adj) > tol && adj0 < 1. - tol) { - irv |= inex; - break; - } - } - bb0 = denorm ? 0 : trailz(rvb); - Bfree(bb); - Bfree(bd); - Bfree(bs); - Bfree(delta); - } - if (!denorm && (j = nbits - rvbits)) { - if (j > 0) - rvb = lshift(rvb, j); - else - rshift(rvb, -j); - rve -= j; - } - *exp = rve; - Bfree(bb); - Bfree(bd); - Bfree(bs); - Bfree(bd0); - Bfree(delta); - if (rve > fpi->emax) { - huge: - rvb->wds = 0; - irv = STRTOG_Infinite | STRTOG_Overflow | STRTOG_Inexhi; -#ifndef NO_ERRNO - errno = ERANGE; -#endif - infnanexp: - *exp = fpi->emax + 1; - } - ret: - if (denorm) { - if (sudden_underflow) { - rvb->wds = 0; - irv = STRTOG_Underflow | STRTOG_Inexlo; - } - else { - irv = (irv & ~STRTOG_Retmask) | - (rvb->wds > 0 ? STRTOG_Denormal : STRTOG_Zero); - if (irv & STRTOG_Inexact) - irv |= STRTOG_Underflow; - } - } - if (se) - *se = (char *)s; - if (sign) - irv |= STRTOG_Neg; - if (rvb) { - copybits(bits, nbits, rvb); - Bfree(rvb); - } - return irv; - } diff --git a/gdtoa/strtodnrp.c b/gdtoa/strtodnrp.c deleted file mode 100644 index 19a769f0..00000000 --- a/gdtoa/strtodnrp.c +++ /dev/null @@ -1,87 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 2004 by David M. Gay. -All Rights Reserved -Based on material in the rest of /netlib/fp/gdota.tar.gz, -which is copyright (C) 1998, 2000 by Lucent Technologies. - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* This is a variant of strtod that works on Intel ia32 systems */ -/* with the default extended-precision arithmetic -- it does not */ -/* require setting the precision control to 53 bits. */ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - double -#ifdef KR_headers -strtod(s, sp) CONST char *s; char **sp; -#else -strtod(CONST char *s, char **sp) -#endif -{ - static FPI fpi = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI }; - ULong bits[2]; - Long exp; - int k; - union { ULong L[2]; double d; } u; - - k = strtodg(s, sp, &fpi, &exp, bits); - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - u.L[0] = u.L[1] = 0; - break; - - case STRTOG_Normal: - u.L[_1] = bits[0]; - u.L[_0] = (bits[1] & ~0x100000) | ((exp + 0x3ff + 52) << 20); - break; - - case STRTOG_Denormal: - u.L[_1] = bits[0]; - u.L[_0] = bits[1]; - break; - - case STRTOG_Infinite: - u.L[_0] = 0x7ff00000; - u.L[_1] = 0; - break; - - case STRTOG_NaN: - u.L[0] = d_QNAN0; - u.L[1] = d_QNAN1; - break; - - case STRTOG_NaNbits: - u.L[_0] = 0x7ff00000 | bits[1]; - u.L[_1] = bits[0]; - } - if (k & STRTOG_Neg) - u.L[_0] |= 0x80000000L; - return u.d; - } diff --git a/gdtoa/strtof.c b/gdtoa/strtof.c deleted file mode 100644 index 21bc6c15..00000000 --- a/gdtoa/strtof.c +++ /dev/null @@ -1,73 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - float -#ifdef KR_headers -strtof(s, sp) CONST char *s; char **sp; -#else -strtof(CONST char *s, char **sp) -#endif -{ - static FPI fpi = { 24, 1-127-24+1, 254-127-24+1, 1, SI }; - ULong bits[1]; - Long exp; - int k; - union { ULong L[1]; float f; } u; - - k = strtodg(s, sp, &fpi, &exp, bits); - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - u.L[0] = 0; - break; - - case STRTOG_Normal: - case STRTOG_NaNbits: - u.L[0] = bits[0] & 0x7fffff | exp + 0x7f + 23 << 23; - break; - - case STRTOG_Denormal: - u.L[0] = bits[0]; - break; - - case STRTOG_Infinite: - u.L[0] = 0x7f800000; - break; - - case STRTOG_NaN: - u.L[0] = f_QNAN; - } - if (k & STRTOG_Neg) - u.L[0] |= 0x80000000L; - return u.f; - } diff --git a/gdtoa/strtopQ.c b/gdtoa/strtopQ.c deleted file mode 100644 index dd5dab82..00000000 --- a/gdtoa/strtopQ.c +++ /dev/null @@ -1,101 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#define _3 3 -#endif -#ifdef IEEE_8087 -#define _0 3 -#define _1 2 -#define _2 1 -#define _3 0 -#endif - - int -#ifdef KR_headers -strtopQ(s, sp, V) CONST char *s; char **sp; void *V; -#else -strtopQ(CONST char *s, char **sp, void *V) -#endif -{ - static FPI fpi = { 113, 1-16383-113+1, 32766 - 16383 - 113 + 1, 1, SI }; - ULong bits[4]; - Long exp; - int k; - ULong *L = (ULong*)V; - - k = strtodg(s, sp, &fpi, &exp, bits); - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = L[1] = L[2] = L[3] = 0; - break; - - case STRTOG_Normal: - case STRTOG_NaNbits: - L[_3] = bits[0]; - L[_2] = bits[1]; - L[_1] = bits[2]; - L[_0] = (bits[3] & ~0x10000) | ((exp + 0x3fff + 112) << 16); - break; - - case STRTOG_Denormal: - L[_3] = bits[0]; - L[_2] = bits[1]; - L[_1] = bits[2]; - L[_0] = bits[3]; - break; - - case STRTOG_Infinite: - L[_0] = 0x7fff0000; - L[_1] = L[_2] = L[_3] = 0; - break; - - case STRTOG_NaN: - L[0] = ld_QNAN0; - L[1] = ld_QNAN1; - L[2] = ld_QNAN2; - L[3] = ld_QNAN3; - } - if (k & STRTOG_Neg) - L[_0] |= 0x80000000L; - return k; - } diff --git a/gdtoa/strtopd.c b/gdtoa/strtopd.c deleted file mode 100644 index 42c57fcc..00000000 --- a/gdtoa/strtopd.c +++ /dev/null @@ -1,49 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtopd(s, sp, d) char *s; char **sp; double *d; -#else -strtopd(CONST char *s, char **sp, double *d) -#endif -{ - static FPI fpi0 = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI }; - ULong bits[2]; - Long exp; - int k; - - k = strtodg(s, sp, &fpi0, &exp, bits); - ULtod((ULong*)d, bits, exp, k); - return k; - } diff --git a/gdtoa/strtopdd.c b/gdtoa/strtopdd.c deleted file mode 100644 index 9b788eec..00000000 --- a/gdtoa/strtopdd.c +++ /dev/null @@ -1,178 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtopdd(s, sp, dd) CONST char *s; char **sp; double *dd; -#else -strtopdd(CONST char *s, char **sp, double *dd) -#endif -{ -#ifdef Sudden_Underflow - static FPI fpi = { 106, 1-1023, 2046-1023-106+1, 1, 1 }; -#else - static FPI fpi = { 106, 1-1023-53+1, 2046-1023-106+1, 1, 0 }; -#endif - ULong bits[4]; - Long exp; - int i, j, rv; - typedef union { - double d[2]; - ULong L[4]; - } U; - U *u; - - rv = strtodg(s, sp, &fpi, &exp, bits); - u = (U*)dd; - switch(rv & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - u->d[0] = u->d[1] = 0.; - break; - - case STRTOG_Normal: - u->L[_1] = (bits[1] >> 21 | bits[2] << 11) & 0xffffffffL; - u->L[_0] = bits[2] >> 21 | bits[3] << 11 & 0xfffff - | exp + 0x3ff + 105 << 20; - exp += 0x3ff + 52; - if (bits[1] &= 0x1fffff) { - i = hi0bits(bits[1]) - 11; - if (i >= exp) { - i = exp - 1; - exp = 0; - } - else - exp -= i; - if (i > 0) { - bits[1] = bits[1] << i | bits[0] >> 32-i; - bits[0] = bits[0] << i & 0xffffffffL; - } - } - else if (bits[0]) { - i = hi0bits(bits[0]) + 21; - if (i >= exp) { - i = exp - 1; - exp = 0; - } - else - exp -= i; - if (i < 32) { - bits[1] = bits[0] >> 32 - i; - bits[0] = bits[0] << i & 0xffffffffL; - } - else { - bits[1] = bits[0] << i - 32; - bits[0] = 0; - } - } - else { - u->L[2] = u->L[3] = 0; - break; - } - u->L[2+_1] = bits[0]; - u->L[2+_0] = bits[1] & 0xfffff | exp << 20; - break; - - case STRTOG_Denormal: - if (bits[3]) - goto nearly_normal; - if (bits[2]) - goto partly_normal; - if (bits[1] & 0xffe00000) - goto hardly_normal; - /* completely denormal */ - u->L[2] = u->L[3] = 0; - u->L[_1] = bits[0]; - u->L[_0] = bits[1]; - break; - - nearly_normal: - i = hi0bits(bits[3]) - 11; /* i >= 12 */ - j = 32 - i; - u->L[_0] = (bits[3] << i | bits[2] >> j) & 0xfffff - | 65 - i << 20; - u->L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL; - u->L[2+_0] = bits[1] & (1L << j) - 1; - u->L[2+_1] = bits[0]; - break; - - partly_normal: - i = hi0bits(bits[2]) - 11; - if (i < 0) { - j = -i; - i += 32; - u->L[_0] = bits[2] >> j & 0xfffff | (33 + j) << 20; - u->L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL; - u->L[2+_0] = bits[1] & (1L << j) - 1; - u->L[2+_1] = bits[0]; - break; - } - if (i == 0) { - u->L[_0] = bits[2] & 0xfffff | 33 << 20; - u->L[_1] = bits[1]; - u->L[2+_0] = 0; - u->L[2+_1] = bits[0]; - break; - } - j = 32 - i; - u->L[_0] = (bits[2] << i | bits[1] >> j) & 0xfffff - | j + 1 << 20; - u->L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL; - u->L[2+_0] = 0; - u->L[2+_1] = bits[0] & (1L << j) - 1; - break; - - hardly_normal: - j = 11 - hi0bits(bits[1]); - i = 32 - j; - u->L[_0] = bits[1] >> j & 0xfffff | j + 1 << 20; - u->L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL; - u->L[2+_0] = 0; - u->L[2+_1] = bits[0] & (1L << j) - 1; - break; - - case STRTOG_Infinite: - u->L[_0] = u->L[2+_0] = 0x7ff00000; - u->L[_1] = u->L[2+_1] = 0; - break; - - case STRTOG_NaN: - u->L[0] = u->L[2] = d_QNAN0; - u->L[1] = u->L[3] = d_QNAN1; - } - if (rv & STRTOG_Neg) { - u->L[ _0] |= 0x80000000L; - u->L[2+_0] |= 0x80000000L; - } - return rv; - } diff --git a/gdtoa/strtopf.c b/gdtoa/strtopf.c deleted file mode 100644 index cc7c970c..00000000 --- a/gdtoa/strtopf.c +++ /dev/null @@ -1,73 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - int -#ifdef KR_headers -strtopf(s, sp, f) CONST char *s; char **sp; float *f; -#else -strtopf(CONST char *s, char **sp, float *f) -#endif -{ - static FPI fpi = { 24, 1-127-24+1, 254-127-24+1, 1, SI }; - ULong bits[1], *L; - Long exp; - int k; - - k = strtodg(s, sp, &fpi, &exp, bits); - L = (ULong*)f; - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = 0; - break; - - case STRTOG_Normal: - case STRTOG_NaNbits: - L[0] = bits[0] & 0x7fffff | exp + 0x7f + 23 << 23; - break; - - case STRTOG_Denormal: - L[0] = bits[0]; - break; - - case STRTOG_Infinite: - L[0] = 0x7f800000; - break; - - case STRTOG_NaN: - L[0] = f_QNAN; - } - if (k & STRTOG_Neg) - L[0] |= 0x80000000L; - return k; - } diff --git a/gdtoa/strtopx.c b/gdtoa/strtopx.c deleted file mode 100644 index 4dcb06ae..00000000 --- a/gdtoa/strtopx.c +++ /dev/null @@ -1,103 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#define _3 3 -#define _4 4 -#endif -#ifdef IEEE_8087 -#define _0 4 -#define _1 3 -#define _2 2 -#define _3 1 -#define _4 0 -#endif - - int -#ifdef KR_headers -strtopx(s, sp, V) CONST char *s; char **sp; void *V; -#else -strtopx(CONST char *s, char **sp, void *V) -#endif -{ - static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI }; - ULong bits[2]; - Long exp; - int k; - UShort *L = (UShort*)V; - - k = strtodg(s, sp, &fpi, &exp, bits); - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = L[1] = L[2] = L[3] = L[4] = 0; - break; - - case STRTOG_Denormal: - L[_0] = 0; - goto normal_bits; - - case STRTOG_Normal: - case STRTOG_NaNbits: - L[_0] = exp + 0x3fff + 63; - normal_bits: - L[_4] = (UShort)bits[0]; - L[_3] = (UShort)(bits[0] >> 16); - L[_2] = (UShort)bits[1]; - L[_1] = (UShort)(bits[1] >> 16); - break; - - case STRTOG_Infinite: - L[_0] = 0x7fff; - L[_1] = L[_2] = L[_3] = L[_4] = 0; - break; - - case STRTOG_NaN: - L[0] = ldus_QNAN0; - L[1] = ldus_QNAN1; - L[2] = ldus_QNAN2; - L[3] = ldus_QNAN3; - L[4] = ldus_QNAN4; - } - if (k & STRTOG_Neg) - L[_0] |= 0x8000; - return k; - } diff --git a/gdtoa/strtopxL.c b/gdtoa/strtopxL.c deleted file mode 100644 index 68c83d2b..00000000 --- a/gdtoa/strtopxL.c +++ /dev/null @@ -1,91 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#endif -#ifdef IEEE_8087 -#define _0 2 -#define _1 1 -#define _2 0 -#endif - - int -#ifdef KR_headers -strtopxL(s, sp, V) CONST char *s; char **sp; void *V; -#else -strtopxL(CONST char *s, char **sp, void *V) -#endif -{ - static FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI }; - ULong bits[2]; - Long exp; - int k; - ULong *L = (ULong*)V; - - k = strtodg(s, sp, &fpi, &exp, bits); - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = L[1] = L[2] = 0; - break; - - case STRTOG_Normal: - case STRTOG_Denormal: - case STRTOG_NaNbits: - L[_2] = bits[0]; - L[_1] = bits[1]; - L[_0] = (exp + 0x3fff + 63) << 16; - break; - - case STRTOG_Infinite: - L[_0] = 0x7fff << 16; - L[_1] = L[_2] = 0; - break; - - case STRTOG_NaN: - L[0] = ld_QNAN0; - L[1] = ld_QNAN1; - L[2] = ld_QNAN2; - } - if (k & STRTOG_Neg) - L[_0] |= 0x80000000L; - return k; - } diff --git a/gdtoa/strtorQ.c b/gdtoa/strtorQ.c deleted file mode 100644 index a9a07da0..00000000 --- a/gdtoa/strtorQ.c +++ /dev/null @@ -1,117 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#define _3 3 -#endif -#ifdef IEEE_8087 -#define _0 3 -#define _1 2 -#define _2 1 -#define _3 0 -#endif - - void -#ifdef KR_headers -ULtoQ(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k; -#else -ULtoQ(ULong *L, ULong *bits, Long exp, int k) -#endif -{ - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = L[1] = L[2] = L[3] = 0; - break; - - case STRTOG_Normal: - case STRTOG_NaNbits: - L[_3] = bits[0]; - L[_2] = bits[1]; - L[_1] = bits[2]; - L[_0] = (bits[3] & ~0x10000) | ((exp + 0x3fff + 112) << 16); - break; - - case STRTOG_Denormal: - L[_3] = bits[0]; - L[_2] = bits[1]; - L[_1] = bits[2]; - L[_0] = bits[3]; - break; - - case STRTOG_Infinite: - L[_0] = 0x7fff0000; - L[_1] = L[_2] = L[_3] = 0; - break; - - case STRTOG_NaN: - L[0] = ld_QNAN0; - L[1] = ld_QNAN1; - L[2] = ld_QNAN2; - L[3] = ld_QNAN3; - } - if (k & STRTOG_Neg) - L[_0] |= 0x80000000L; - } - - int -#ifdef KR_headers -strtorQ(s, sp, rounding, L) CONST char *s; char **sp; int rounding; void *L; -#else -strtorQ(CONST char *s, char **sp, int rounding, void *L) -#endif -{ - static FPI fpi0 = { 113, 1-16383-113+1, 32766-16383-113+1, 1, SI }; - FPI *fpi, fpi1; - ULong bits[4]; - Long exp; - int k; - - fpi = &fpi0; - if (rounding != FPI_Round_near) { - fpi1 = fpi0; - fpi1.rounding = rounding; - fpi = &fpi1; - } - k = strtodg(s, sp, fpi, &exp, bits); - ULtoQ((ULong*)L, bits, exp, k); - return k; - } diff --git a/gdtoa/strtord.c b/gdtoa/strtord.c deleted file mode 100644 index 709af4c7..00000000 --- a/gdtoa/strtord.c +++ /dev/null @@ -1,93 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - void -#ifdef KR_headers -ULtod(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k; -#else -ULtod(ULong *L, ULong *bits, Long exp, int k) -#endif -{ - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = L[1] = 0; - break; - - case STRTOG_Denormal: - L[_1] = bits[0]; - L[_0] = bits[1]; - break; - - case STRTOG_Normal: - case STRTOG_NaNbits: - L[_1] = bits[0]; - L[_0] = (bits[1] & ~0x100000) | ((exp + 0x3ff + 52) << 20); - break; - - case STRTOG_Infinite: - L[_0] = 0x7ff00000; - L[_1] = 0; - break; - - case STRTOG_NaN: - L[0] = d_QNAN0; - L[1] = d_QNAN1; - } - if (k & STRTOG_Neg) - L[_0] |= 0x80000000L; - } - - int -#ifdef KR_headers -strtord(s, sp, rounding, d) CONST char *s; char **sp; int rounding; double *d; -#else -strtord(CONST char *s, char **sp, int rounding, double *d) -#endif -{ - static FPI fpi0 = { 53, 1-1023-53+1, 2046-1023-53+1, 1, SI }; - FPI *fpi, fpi1; - ULong bits[2]; - Long exp; - int k; - - fpi = &fpi0; - if (rounding != FPI_Round_near) { - fpi1 = fpi0; - fpi1.rounding = rounding; - fpi = &fpi1; - } - k = strtodg(s, sp, fpi, &exp, bits); - ULtod((ULong*)d, bits, exp, k); - return k; - } diff --git a/gdtoa/strtordd.c b/gdtoa/strtordd.c deleted file mode 100644 index 9c2b46e6..00000000 --- a/gdtoa/strtordd.c +++ /dev/null @@ -1,199 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - void -#ifdef KR_headers -ULtodd(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k; -#else -ULtodd(ULong *L, ULong *bits, Long exp, int k) -#endif -{ - int i, j; - - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = L[1] = L[2] = L[3] = 0; - break; - - case STRTOG_Normal: - L[_1] = (bits[1] >> 21 | bits[2] << 11) & (ULong)0xffffffffL; - L[_0] = bits[2] >> 21 | bits[3] << 11 & 0xfffff - | exp + 0x3ff + 105 << 20; - exp += 0x3ff + 52; - if (bits[1] &= 0x1fffff) { - i = hi0bits(bits[1]) - 11; - if (i >= exp) { - i = exp - 1; - exp = 0; - } - else - exp -= i; - if (i > 0) { - bits[1] = bits[1] << i | bits[0] >> 32-i; - bits[0] = bits[0] << i & (ULong)0xffffffffL; - } - } - else if (bits[0]) { - i = hi0bits(bits[0]) + 21; - if (i >= exp) { - i = exp - 1; - exp = 0; - } - else - exp -= i; - if (i < 32) { - bits[1] = bits[0] >> 32 - i; - bits[0] = bits[0] << i & (ULong)0xffffffffL; - } - else { - bits[1] = bits[0] << i - 32; - bits[0] = 0; - } - } - else { - L[2] = L[3] = 0; - break; - } - L[2+_1] = bits[0]; - L[2+_0] = bits[1] & 0xfffff | exp << 20; - break; - - case STRTOG_Denormal: - if (bits[3]) - goto nearly_normal; - if (bits[2]) - goto partly_normal; - if (bits[1] & 0xffe00000) - goto hardly_normal; - /* completely denormal */ - L[2] = L[3] = 0; - L[_1] = bits[0]; - L[_0] = bits[1]; - break; - - nearly_normal: - i = hi0bits(bits[3]) - 11; /* i >= 12 */ - j = 32 - i; - L[_0] = (bits[3] << i | bits[2] >> j) & 0xfffff - | 65 - i << 20; - L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL; - L[2+_0] = bits[1] & ((ULong)1L << j) - 1; - L[2+_1] = bits[0]; - break; - - partly_normal: - i = hi0bits(bits[2]) - 11; - if (i < 0) { - j = -i; - i += 32; - L[_0] = bits[2] >> j & 0xfffff | (33 + j) << 20; - L[_1] = (bits[2] << i | bits[1] >> j) & 0xffffffffL; - L[2+_0] = bits[1] & ((ULong)1L << j) - 1; - L[2+_1] = bits[0]; - break; - } - if (i == 0) { - L[_0] = bits[2] & 0xfffff | 33 << 20; - L[_1] = bits[1]; - L[2+_0] = 0; - L[2+_1] = bits[0]; - break; - } - j = 32 - i; - L[_0] = (bits[2] << i | bits[1] >> j) & 0xfffff - | j + 1 << 20; - L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL; - L[2+_0] = 0; - L[2+_1] = bits[0] & (1L << j) - 1; - break; - - hardly_normal: - j = 11 - hi0bits(bits[1]); - i = 32 - j; - L[_0] = bits[1] >> j & 0xfffff | j + 1 << 20; - L[_1] = (bits[1] << i | bits[0] >> j) & 0xffffffffL; - L[2+_0] = 0; - L[2+_1] = bits[0] & ((ULong)1L << j) - 1; - break; - - case STRTOG_Infinite: - L[_0] = L[2+_0] = 0x7ff00000; - L[_1] = L[2+_1] = 0; - break; - - case STRTOG_NaN: - L[0] = L[2] = d_QNAN0; - L[1] = L[3] = d_QNAN1; - break; - - case STRTOG_NaNbits: - L[_1] = (bits[1] >> 21 | bits[2] << 11) & (ULong)0xffffffffL; - L[_0] = bits[2] >> 21 | bits[3] << 11 - | (ULong)0x7ff00000L; - L[2+_1] = bits[0]; - L[2+_0] = bits[1] | (ULong)0x7ff00000L; - } - if (k & STRTOG_Neg) { - L[_0] |= 0x80000000L; - L[2+_0] |= 0x80000000L; - } - } - - int -#ifdef KR_headers -strtordd(s, sp, rounding, dd) CONST char *s; char **sp; int rounding; double *dd; -#else -strtordd(CONST char *s, char **sp, int rounding, double *dd) -#endif -{ -#ifdef Sudden_Underflow - static FPI fpi0 = { 106, 1-1023, 2046-1023-106+1, 1, 1 }; -#else - static FPI fpi0 = { 106, 1-1023-53+1, 2046-1023-106+1, 1, 0 }; -#endif - FPI *fpi, fpi1; - ULong bits[4]; - Long exp; - int k; - - fpi = &fpi0; - if (rounding != FPI_Round_near) { - fpi1 = fpi0; - fpi1.rounding = rounding; - fpi = &fpi1; - } - k = strtodg(s, sp, fpi, &exp, bits); - ULtodd((ULong*)dd, bits, exp, k); - return k; - } diff --git a/gdtoa/strtorf.c b/gdtoa/strtorf.c deleted file mode 100644 index 46b0ba2e..00000000 --- a/gdtoa/strtorf.c +++ /dev/null @@ -1,89 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - void -#ifdef KR_headers -ULtof(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k; -#else -ULtof(ULong *L, ULong *bits, Long exp, int k) -#endif -{ - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - *L = 0; - break; - - case STRTOG_Normal: - case STRTOG_NaNbits: - L[0] = bits[0] & 0x7fffff | exp + 0x7f + 23 << 23; - break; - - case STRTOG_Denormal: - L[0] = bits[0]; - break; - - case STRTOG_Infinite: - L[0] = 0x7f800000; - break; - - case STRTOG_NaN: - L[0] = f_QNAN; - } - if (k & STRTOG_Neg) - L[0] |= 0x80000000L; - } - - int -#ifdef KR_headers -strtorf(s, sp, rounding, f) CONST char *s; char **sp; int rounding; float *f; -#else -strtorf(CONST char *s, char **sp, int rounding, float *f) -#endif -{ - static FPI fpi0 = { 24, 1-127-24+1, 254-127-24+1, 1, SI }; - FPI *fpi, fpi1; - ULong bits[1]; - Long exp; - int k; - - fpi = &fpi0; - if (rounding != FPI_Round_near) { - fpi1 = fpi0; - fpi1.rounding = rounding; - fpi = &fpi1; - } - k = strtodg(s, sp, fpi, &exp, bits); - ULtof((ULong*)f, bits, exp, k); - return k; - } diff --git a/gdtoa/strtorx.c b/gdtoa/strtorx.c deleted file mode 100644 index 23f721aa..00000000 --- a/gdtoa/strtorx.c +++ /dev/null @@ -1,119 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#define _3 3 -#define _4 4 -#endif -#ifdef IEEE_8087 -#define _0 4 -#define _1 3 -#define _2 2 -#define _3 1 -#define _4 0 -#endif - - void -#ifdef KR_headers -ULtox(L, bits, exp, k) UShort *L; ULong *bits; Long exp; int k; -#else -ULtox(UShort *L, ULong *bits, Long exp, int k) -#endif -{ - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = L[1] = L[2] = L[3] = L[4] = 0; - break; - - case STRTOG_Denormal: - L[_0] = 0; - goto normal_bits; - - case STRTOG_Normal: - case STRTOG_NaNbits: - L[_0] = exp + 0x3fff + 63; - normal_bits: - L[_4] = (UShort)bits[0]; - L[_3] = (UShort)(bits[0] >> 16); - L[_2] = (UShort)bits[1]; - L[_1] = (UShort)(bits[1] >> 16); - break; - - case STRTOG_Infinite: - L[_0] = 0x7fff; - L[_1] = L[_2] = L[_3] = L[_4] = 0; - break; - - case STRTOG_NaN: - L[0] = ldus_QNAN0; - L[1] = ldus_QNAN1; - L[2] = ldus_QNAN2; - L[3] = ldus_QNAN3; - L[4] = ldus_QNAN4; - } - if (k & STRTOG_Neg) - L[_0] |= 0x8000; - } - - int -#ifdef KR_headers -strtorx(s, sp, rounding, L) CONST char *s; char **sp; int rounding; void *L; -#else -strtorx(CONST char *s, char **sp, int rounding, void *L) -#endif -{ - static FPI fpi0 = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI }; - FPI *fpi, fpi1; - ULong bits[2]; - Long exp; - int k; - - fpi = &fpi0; - if (rounding != FPI_Round_near) { - fpi1 = fpi0; - fpi1.rounding = rounding; - fpi = &fpi1; - } - k = strtodg(s, sp, fpi, &exp, bits); - ULtox((UShort*)L, bits, exp, k); - return k; - } diff --git a/gdtoa/strtorxL.c b/gdtoa/strtorxL.c deleted file mode 100644 index ff62a613..00000000 --- a/gdtoa/strtorxL.c +++ /dev/null @@ -1,107 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 2000 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - -#undef _0 -#undef _1 - -/* one or the other of IEEE_MC68k or IEEE_8087 should be #defined */ - -#ifdef IEEE_MC68k -#define _0 0 -#define _1 1 -#define _2 2 -#endif -#ifdef IEEE_8087 -#define _0 2 -#define _1 1 -#define _2 0 -#endif - - void -#ifdef KR_headers -ULtoxL(L, bits, exp, k) ULong *L; ULong *bits; Long exp; int k; -#else -ULtoxL(ULong *L, ULong *bits, Long exp, int k) -#endif -{ - switch(k & STRTOG_Retmask) { - case STRTOG_NoNumber: - case STRTOG_Zero: - L[0] = L[1] = L[2] = 0; - break; - - case STRTOG_Normal: - case STRTOG_Denormal: - case STRTOG_NaNbits: - L[_0] = (exp + 0x3fff + 63) << 16; - L[_1] = bits[1]; - L[_2] = bits[0]; - break; - - case STRTOG_Infinite: - L[_0] = 0x7fff << 16; - L[_1] = L[_2] = 0; - break; - - case STRTOG_NaN: - L[0] = ld_QNAN0; - L[1] = ld_QNAN1; - L[2] = ld_QNAN2; - } - if (k & STRTOG_Neg) - L[_0] |= 0x80000000L; - } - - int -#ifdef KR_headers -strtorxL(s, sp, rounding, L) CONST char *s; char **sp; int rounding; void *L; -#else -strtorxL(CONST char *s, char **sp, int rounding, void *L) -#endif -{ - static FPI fpi0 = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI }; - FPI *fpi, fpi1; - ULong bits[2]; - Long exp; - int k; - - fpi = &fpi0; - if (rounding != FPI_Round_near) { - fpi1 = fpi0; - fpi1.rounding = rounding; - fpi = &fpi1; - } - k = strtodg(s, sp, fpi, &exp, bits); - ULtoxL((ULong*)L, bits, exp, k); - return k; - } diff --git a/gdtoa/sum.c b/gdtoa/sum.c deleted file mode 100644 index dc0c88bc..00000000 --- a/gdtoa/sum.c +++ /dev/null @@ -1,98 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - Bigint * -#ifdef KR_headers -sum(a, b) Bigint *a; Bigint *b; -#else -sum(Bigint *a, Bigint *b) -#endif -{ - Bigint *c; - ULong carry, *xc, *xa, *xb, *xe, y; -#ifdef Pack_32 - ULong z; -#endif - - if (a->wds < b->wds) { - c = b; b = a; a = c; - } - c = Balloc(a->k); - c->wds = a->wds; - carry = 0; - xa = a->x; - xb = b->x; - xc = c->x; - xe = xc + b->wds; -#ifdef Pack_32 - do { - y = (*xa & 0xffff) + (*xb & 0xffff) + carry; - carry = (y & 0x10000) >> 16; - z = (*xa++ >> 16) + (*xb++ >> 16) + carry; - carry = (z & 0x10000) >> 16; - Storeinc(xc, z, y); - } - while(xc < xe); - xe += a->wds - b->wds; - while(xc < xe) { - y = (*xa & 0xffff) + carry; - carry = (y & 0x10000) >> 16; - z = (*xa++ >> 16) + carry; - carry = (z & 0x10000) >> 16; - Storeinc(xc, z, y); - } -#else - do { - y = *xa++ + *xb++ + carry; - carry = (y & 0x10000) >> 16; - *xc++ = y & 0xffff; - } - while(xc < xe); - xe += a->wds - b->wds; - while(xc < xe) { - y = *xa++ + carry; - carry = (y & 0x10000) >> 16; - *xc++ = y & 0xffff; - } -#endif - if (carry) { - if (c->wds == c->maxwds) { - b = Balloc(c->k + 1); - Bcopy(b, c); - Bfree(c); - c = b; - } - c->x[c->wds++] = 1; - } - return c; - } diff --git a/gdtoa/ulp.c b/gdtoa/ulp.c deleted file mode 100644 index 7810a5c8..00000000 --- a/gdtoa/ulp.c +++ /dev/null @@ -1,70 +0,0 @@ -/**************************************************************** - -The author of this software is David M. Gay. - -Copyright (C) 1998, 1999 by Lucent Technologies -All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appear in all -copies and that both that the copyright notice and this -permission notice and warranty disclaimer appear in supporting -documentation, and that the name of Lucent or any of its entities -not be used in advertising or publicity pertaining to -distribution of the software without specific, written prior -permission. - -LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. -IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY -SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, -ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF -THIS SOFTWARE. - -****************************************************************/ - -/* Please send bug reports to David M. Gay (dmg at acm dot org, - * with " at " changed at "@" and " dot " changed to "."). */ - -#include "gdtoaimp.h" - - double -ulp -#ifdef KR_headers - (x) double x; -#else - (double x) -#endif -{ - Long L; - double a; - - L = (word0(x) & Exp_mask) - (P-1)*Exp_msk1; -#ifndef Sudden_Underflow - if (L > 0) { -#endif -#ifdef IBM - L |= Exp_msk1 >> 4; -#endif - word0(a) = L; - word1(a) = 0; -#ifndef Sudden_Underflow - } - else { - L = -L >> Exp_shift; - if (L < Exp_shift) { - word0(a) = 0x80000 >> L; - word1(a) = 0; - } - else { - word0(a) = 0; - L -= Exp_shift; - word1(a) = L >= 31 ? 1 : 1 << 31 - L; - } - } -#endif - return a; - } |