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authorPaul Eggert <eggert@cs.ucla.edu>2019-11-13 13:07:01 -0800
committerPaul Eggert <eggert@cs.ucla.edu>2019-11-13 13:10:09 -0800
commitbede5984246ba734c93fc28148b5f8e1b14d30c5 (patch)
treed5ec0482e1ed6b8dad42e65c9d9ea4eb2e2b75ff /lisp/emacs-lisp
parent02e637ecca3b1419d2a6c433eca72c5728c65051 (diff)
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Fix double-rounding bug in ceiling etc.
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.
Diffstat (limited to 'lisp/emacs-lisp')
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