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view man/lispref/index.texi @ 5911:48386fd60fd0
GMP functions that take doubles choke on non-finite values, avoid that.
src/ChangeLog addition:
2015-05-10 Aidan Kehoe <kehoea@parhasard.net>
* floatfns.c (double_to_integer):
Rename this from float_to_int to fit our newer, bignum-compatible
terminology.
GMP can signal SIGFPE when asked to turn NaN or infinity into a
bignum, and we're not prepared to handle that signal if the OS float
library routines don't do that, so check for those values
explicitly.
* floatfns.c (ceiling_two_float):
* floatfns.c (ceiling_one_float):
* floatfns.c (floor_two_float):
* floatfns.c (floor_one_float):
* floatfns.c (round_two_float):
* floatfns.c (round_one_float):
* floatfns.c (truncate_two_float):
* floatfns.c (truncate_one_float):
Call double_to_integer() with its new name.
* number.c:
Don't use the {bignum,ratio,bigfloat}_set_double functions
directly here, with GMP they can choke when handed non-finite C
doubles, call Ftruncate() and the new float_to_bigfloat() from
floatfns.c. Maybe we should extend number-gmp.c with GMP-specific
implementations that check for non-finite values.
tests/ChangeLog addition:
2015-05-10 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Backslash a few parentheses in the first column for the sake of
fontification.
* automated/lisp-tests.el:
Check that the rounding functions signal Lisp errors correctly
when handed positive and negative infinity and NaN.
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Sun, 10 May 2015 19:07:09 +0100 |
parents | 576fb035e263 |
children |
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@c -*-texinfo-*- @setfilename ../../info/index.info @c Indexing guidelines @c I assume that all indexes will be combined. @c Therefore, if a generated findex and permutations @c cover the ways an index user would look up the entry, @c then no cindex is added. @c Concept index (cindex) entries will also be permuted. Therefore, they @c have no commas and few irrelevant connectives in them. @c I tried to include words in a cindex that give the context of the entry, @c particularly if there is more than one entry for the same concept. @c For example, "nil in keymap" @c Similarly for explicit findex and vindex entries, e.g. "print example". @c Error codes are given cindex entries, e.g. "end-of-file error". @c pindex is used for .el files and Unix programs @node Index, , Standard Hooks, Top @unnumbered Index @ignore All variables, functions, keys, programs, files, and concepts are in this one index. All names and concepts are permuted, so they appear several times, one for each permutation of the parts of the name. For example, @code{function-name} would appear as @b{function-name} and @b{name, function-}. Key entries are not permuted, however. @end ignore @c Print the indices @printindex fn