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Also handle __STDC_WANT_IEC_60559_BFP_EXT__ in <tgmath.h>.

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My __STDC_WANT_IEC_60559_BFP_EXT__ patch omitted to update the
conditions on the nextup and nextdown type-generic macros in
<tgmath.h>.  This patch updates those conditions accordingly.  (As
glibc doesn't currently have an exp10 type-generic macro, no such
changes are needed relating to __STDC_WANT_IEC_60559_FUNCS_EXT__;
adding such a type-generic macro would be a new feature.)

Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).  Committed.

	* math/tgmath.h (nextdown): Define if
	[__GLIBC_USE (IEC_60559_BFP_EXT)], not if [__USE_GNU].
	(nextup): Likewise.
This commit is contained in:
Joseph Myers 2016-08-03 22:56:54 +00:00
parent 412cb261b0
commit 146f208da6
2 changed files with 5 additions and 1 deletions

4
ChangeLog

@ -1,5 +1,9 @@
2016-08-03 Joseph Myers <joseph@codesourcery.com>
* math/tgmath.h (nextdown): Define if
[__GLIBC_USE (IEC_60559_BFP_EXT)], not if [__USE_GNU].
(nextup): Likewise.
* bits/libc-header-start.h (__GLIBC_USE_IEC_60559_FUNCS_EXT): New
macro.
* include/features.h (__STDC_WANT_IEC_60559_FUNCS_EXT__):

2
math/tgmath.h

@ -392,7 +392,7 @@
prevailing rounding mode. */
#define rint(Val) __TGMATH_UNARY_REAL_ONLY (Val, rint)
#ifdef __USE_GNU
#if __GLIBC_USE (IEC_60559_BFP_EXT)
/* Return X - epsilon. */
# define nextdown(Val) __TGMATH_UNARY_REAL_ONLY (Val, nextdown)
/* Return X + epsilon. */