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* Prefer oddp/evenp to free-coding them in testsStefan Kangas2025-02-171-2/+2
| | | | | | | | | | | | | | * test/lisp/emacs-lisp/bindat-tests.el (bindat-test--sint): * test/lisp/emacs-lisp/seq-tests.el (test-seq-drop-while) (test-seq-take-while, test-seq-filter, test-seq-remove) (test-seq-count, test-seq-some, test-seq-find, test-seq-every-p) (test-seq-group-by): * test/lisp/eshell/em-pred-tests.el (eshell-with-file-attributes-from-name): * test/lisp/filenotify-tests.el (file-notify-test07-many-events) (file-notify-test09-watched-file-in-watched-dir): * test/src/floatfns-tests.el (bignum-expt, bignum-round): * test/src/undo-tests.el (undo-test4): Prefer oddp/evenp to free-coding them.
* Update copyright year to 2025Paul Eggert2025-01-011-1/+1
| | | | Run "TZ=UTC0 admin/update-copyright".
* ; Add 2024 to copyright yearsPo Lu2024-01-021-1/+1
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* ; Add 2023 to copyright years.Eli Zaretskii2023-01-011-1/+1
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* Merge from origin/emacs-28Eli Zaretskii2022-01-011-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 836be7a112 ; * etc/refcards/ru-refcard.tex: Update Copyright year. 86cbc6ee4a * lisp/net/tramp-sh.el: Adapt copyright year ebe8772f65 ; Minor fixes related to copyright years 23c1ee6989 ; * test/manual/etags/ETAGS.good_N: Adjust to copyright ye... 8d3fc7ec89 * src/xfaces.c (face_for_font): Make 'hash' be uintptr_t. 19dcb237b5 ; Add 2022 to copyright years. # Conflicts: # etc/NEWS # etc/refcards/ru-refcard.tex # lib/cdefs.h # lisp/erc/erc-dcc.el # lisp/erc/erc-imenu.el # lisp/erc/erc-replace.el # lisp/image-dired.el # lisp/progmodes/xref.el # m4/alloca.m4 # m4/byteswap.m4 # m4/errno_h.m4 # m4/getopt.m4 # m4/gnulib-common.m4 # m4/inttypes.m4 # m4/stddef_h.m4 # m4/stdint.m4 # m4/sys_socket_h.m4
| * ; Add 2022 to copyright years.Eli Zaretskii2022-01-011-1/+1
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* | Add some tests for floatfns.cStefan Kangas2021-10-201-0/+62
|/ | | | | | | | | | | | * test/src/floatfns-tests.el (floatfns-tests-cos) (floatfns-tests-sin, floatfns-tests-tan, floatfns-tests-isnan) (floatfns-tests-exp, floatfns-tests-expt, floatfns-tests-log) (floatfns-tests-sqrt, floatfns-tests-abs, floatfns-tests-logb) (floatfns-tests-ceiling, floatfns-tests-floor) (floatfns-tests-round, floatfns-tests-truncate) (floatfns-tests-fceiling, floatfns-tests-ffloor) (floatfns-tests-fround, floatfns-tests-ftruncate) (divide-extreme-sign): New tests.
* ; Minor stylistic checkdoc fixes in test/**/*.elStefan Kangas2021-09-261-0/+4
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* Update copyright year to 2021Paul Eggert2021-01-011-1/+1
| | | | Run "TZ=UTC0 admin/update-copyright".
* Use lexical-binding in most src testsStefan Kangas2020-04-241-1/+1
| | | | | | | | | | | | | | | | | | | | * test/src/charset-tests.el: * test/src/chartab-tests.el: * test/src/cmds-tests.el: * test/src/coding-tests.el (top-level) (generate-ascii-file, generate-mostly-nonascii-file): * test/src/doc-tests.el: * test/src/floatfns-tests.el: * test/src/font-tests.el: * test/src/keymap-tests.el: * test/src/process-tests.el (top-level) (process-test-sentinel-wait-function-working-p) (process-test-stderr-buffer, process-test-stderr-filter): * test/src/textprop-tests.el: * test/src/thread-tests.el: * test/src/timefns-tests.el: * test/src/undo-tests.el: * test/src/xml-tests.el: Use lexical-binding.
* Update copyright year to 2020Paul Eggert2020-01-011-1/+1
| | | | Run "TZ=UTC0 admin/update-copyright $(git ls-files)".
* Handle weird cases like (ceil 0 0.0)Paul Eggert2019-11-141-13/+11
| | | | | | | | | | | * src/floatfns.c (double_integer_scale): Distinguish Inf from NaN. (rounding_driver): Handle (ceil 0 0.0) and (ceil 0 1.0e+INF). * test/src/floatfns-tests.el (special-round): Add tests for weird cases like this. Avoid crash with (floor 0 0.0) * src/floatfns.c (rounding_driver): Signal an arithmetic error if divisor is 0.0 or -0.0, instead of crashing.
* Fix double-rounding bug in ceiling etc.Paul Eggert2019-11-131-1/+3
| | | | | | | | | | | | This is doable now that we have bignums. * src/floatfns.c (integer_value): Remove; no longer used. (rescale_for_division): New function. (rounding_driver): Use it to divide properly (by using bignums) even when arguments are float, fixing a double-rounding FIXME. * src/lisp.h (LOG2_FLT_RADIX): Move here ... * src/timefns.c (frac_to_double): ... from here. * test/src/floatfns-tests.el (big-round): Add a test to catch the double-rounding bug.
* Don’t signal overflow for (expt 1 bignum)Paul Eggert2019-11-041-0/+5
| | | | | | | | Similarly for (expt 0 bignum) and (expt -1 bignum). The result is always a -1, 0 or 1, so do not signal overflow. * src/data.c (expt_integer): Do not signal an overflow if -1 <= X <= 1. Be clearer about when overflow is signaled. * test/src/floatfns-tests.el (bignum-expt): Test this.
* Merge from origin/emacs-26Paul Eggert2018-12-311-1/+1
|\ | | | | | | | | | | 2fcf2df Fix copyright years by hand 26bed8b Update copyright year to 2019 2814292 Fix value of default frame height. (Bug#33921)
| * Update copyright year to 2019Paul Eggert2019-01-011-1/+1
| | | | | | | | Run 'TZ=UTC0 admin/update-copyright $(git ls-files)'.
* | Round bignums consistently with other integersPaul Eggert2018-09-221-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | * src/bignum.c (mpz_bufsize): New function. (bignum_bufsize): Use it. (mpz_get_d_rounded): New function. (bignum_to_double): Use it. * src/bignum.c (bignum_to_double): * src/data.c (bignum_arith_driver): When converting bignums to double, round instead of truncating, to be consistent with what happens with fixnums. * test/src/floatfns-tests.el (bignum-to-float): Test rounding.
* | Fix (floor 54043195528445955 3.0) bugPaul Eggert2018-09-131-0/+4
| | | | | | | | | | | | | | * src/floatfns.c (rounding_driver): Fix rounding error that can occur when both args have values exactly representable as integers but at least one arg is a float. * test/src/floatfns-tests.el (big-round): New test.
* | Fix (round 1e+INF) core dumpPaul Eggert2018-09-111-0/+15
| | | | | | | | | | | | * src/bignum.c (double_to_integer): Signal an error if D cannot be converted, instead of dumping core. * test/src/floatfns-tests.el (special-round): New test.
* | Fix (round FLOAT BIGNUM) bugPaul Eggert2018-09-041-0/+5
| | | | | | | | | | | | * src/floatfns.c (rounding_driver): Fix bug when one argument is a float and the other is a bignum. * test/src/floatfns-tests.el (bignum-round): Test for the bug.
* | Fix bugs when rounding to bignumsPaul Eggert2018-08-221-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, since Emacs historically reported a range error when rounding operations overflowed, do that consistently for all bignum overflows. * doc/lispref/errors.texi (Standard Errors): * doc/lispref/numbers.texi (Integer Basics): Document range errors. * src/alloc.c (range_error): Rename from integer_overflow. All uses changed. * src/floatfns.c (rounding_driver): When the result of a floating point rounding operation does not fit into a fixnum, put it into a bignum instead of always signaling an range error. * test/src/floatfns-tests.el (divide-extreme-sign): These tests now return the mathematically-correct answer instead of signaling an error. (bignum-round): Check that integers round to themselves.
* | Add bignum support to floor, ceiling, etc.Paul Eggert2018-08-211-0/+27
| | | | | | | | | | | | | | | | | | | | | | Problem reported by Andy Moreton (Bug#32463#35 (d)). * src/floatfns.c (rounding_driver): Change the signature of the integer rounder to use mpz_t rather than EMACS_INT. All uses changed. Support bignums. (ceiling2, floor2, truncate2, round2): Remove. All uses changed to rounddiv_q or to a GMP library function. (rounddiv_q): New function. * test/src/floatfns-tests.el (bignum-round): New test.
* | Add bignum support to exptPaul Eggert2018-08-191-0/+9
| | | | | | | | | | | | | | | | | | | | Problem and initial solution reported by Andy Moreton in: https://lists.gnu.org/r/emacs-devel/2018-08/msg00503.html * doc/lispref/numbers.texi (Math Functions): expt integer overflow no longer causes truncation; it now signals an error since bignum overflow is a big deal. * src/floatfns.c (Fexpt): Support bignum arguments. * test/src/floatfns-tests.el (bignum-expt): New test.
* | Fix bug with ‘mod’ and float+bignumPaul Eggert2018-08-181-0/+3
| | | | | | | | | | | | | | Problem reported by Andy Moreton in: https://lists.gnu.org/r/emacs-devel/2018-08/msg00442.html * src/floatfns.c (fmod_float): Work even if an arg is a bignum. * test/src/floatfns-tests.el (bignum-mod): New test.
* | Make logb handle bignumsTom Tromey2018-07-121-0/+4
| | | | | | | | | | * src/floatfns.c (Flogb): Handle bignums. * test/src/floatfns-tests.el (bignum-logb): New test.
* | Make abs handle bignumsTom Tromey2018-07-121-0/+4
| | | | | | | | | | * src/floatfns.c (Fabs): Handle bignums. * test/src/floatfns-tests.el (bignum-abs): New test.
* | Allow conversion of bignums to floatsTom Tromey2018-07-121-0/+4
|/ | | | | | * src/floatfns.c (extract_float, Ffloat): Handle bignums. * src/lisp.h (XFLOATINT): Handle bignums. * test/src/floatfns-tests.el (bignum-to-float): New test.
* Update copyright year to 2018Paul Eggert2018-01-011-1/+1
| | | | Run admin/update-copyright.
* Prefer HTTPS to FTP and HTTP in documentationPaul Eggert2017-09-131-1/+1
| | | | | | | | | | | | | Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
* ffloor etc. now accept only floatsPaul Eggert2017-03-051-0/+6
| | | | | | | * etc/NEWS: Say why. * src/floatfns.c (Ffceiling, Fffloor, Ffround, Fftruncate): Require arg to be float. * test/src/floatfns-tests.el (fround-fixnum): Check this.
* ; Spelling fixesPaul Eggert2017-03-051-1/+1
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* logb now works correctly on large integersPaul Eggert2017-03-031-0/+3
| | | | | | | | | | | | | * admin/merge-gnulib (GNULIB_MODULES): Add count-leading-zeros. * etc/NEWS: Document the change. * lib/count-leading-zeros.c, lib/count-leading-zeros.h: * m4/count-leading-zeros.m4: New files, copied from Gnulib. * lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate. * src/floatfns.c: Include count-leading-zeros.h. (Flogb): Do not convert fixnum to float before taking the log, as the rounding error can cause the answer to be off by 1. * src/lisp.h (EMACS_UINT_WIDTH): New constant. * test/src/floatfns-tests.el (logb-extreme-fixnum): New test.
* Fix rounding error in ‘ceiling’ etc.Paul Eggert2017-03-011-0/+28
Without this fix, (ceiling most-negative-fixnum -1.0) returns most-negative-fixnum instead of correctly signaling range-error, and similarly for floor, round, and truncate. * configure.ac (trunc): Add a check, since Gnulib’s doc says ‘trunc’ is missing from MSVC 9. The Gnulib doc says ‘trunc’ is also missing from some other older operating systems like Solaris 9 which I know we don’t care about any more, so MSVC is the only reason to worry about ‘trunc’ here. * src/editfns.c (styled_format): Formatting a float with %c is now an error. The old code did not work in general, because FIXNUM_OVERFLOW_P had rounding errors. Besides, the "if (FLOATP (...))" was in there only as a result of my misunderstanding old code that I introduced 2011. Although %d etc. is sometimes used on floats that represent huge UIDs or PIDs etc. that do not fit in fixnums, this cannot happen with characters. * src/floatfns.c (rounding_driver): Rework to do the right thing when the intermediate result equals 2.305843009213694e+18, i.e., is exactly 1 greater than MOST_POSITIVE_FIXNUM on a 64-bit host. Simplify so that only one section of code checks for overflow, rather than two. (double_identity): Remove. All uses changed to ... (emacs_trunc): ... this new function. Add replacement for platforms that lack ‘trunc’. * src/lisp.h (FIXNUM_OVERFLOW_P, make_fixnum_or_float): Make it clear that the arg cannot be floating point. * test/src/editfns-tests.el (format-c-float): New test. * test/src/floatfns-tests.el: New file, to test for this bug.
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