Joseph Myers 6f322a8947 Define HIGH_ORDER_BIT_IS_SET_FOR_SNAN to 0 or 1. ... This patch moves the HIGH_ORDER_BIT_IS_SET_FOR_SNAN macro from being defined or undefined to the preferred convention of always being defined, to either 0 or 1, so allowing typo-proof tests with #if. The macro is moved from math_private.h to a new header nan-high-order-bit.h to make it easy for all architectures to define, either through the sysdeps/generic version of the header or through providing their own version of the header, without needing #ifndef in the generic math_private.h to give a default definition. The move also allows the macro to be used without needing math_private.h to be included; the immediate motivation of this patch is to allow tests to access this information (to know what kinds of NaNs 0 is a valid payload for) without needing to include math_private.h. Existing C level rather than preprocessor conditionals at all, but this patch does not make such a change). Tested for x86_64 and x86 (testsuite); also verified for x86_64, x86, mips64 and powerpc that installed stripped shared libraries are unchanged by the patch. * sysdeps/generic/nan-high-order-bit.h: New file. * sysdeps/hppa/nan-high-order-bit.h: Likewise. * sysdeps/mips/nan-high-order-bit.h: Likewise. * sysdeps/hppa/math_private.h: Remove file. * sysdeps/mips/math_private.h (HIGH_ORDER_BIT_IS_SET_FOR_SNAN): Do not define here. * sysdeps/ieee754/dbl-64/s_issignaling.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/dbl-64/s_totalorder.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/dbl-64/s_totalordermag.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/dbl-64/wordsize-64/s_issignaling.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/flt-32/s_issignalingf.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/flt-32/s_totalorderf.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/flt-32/s_totalordermagf.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-128/s_issignalingl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-128/s_totalorderl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-128/s_totalordermagl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-128ibm/s_issignalingl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-128ibm/s_totalordermagl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-96/s_issignalingl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-96/s_totalorderl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef. * sysdeps/ieee754/ldbl-96/s_totalordermagl.c: Include <nan-high-order-bit.h>. [HIGH_ORDER_BIT_IS_SET_FOR_SNAN]: Test with #if not #ifdef.		2016-10-17 22:48:51 +00:00
..
e_acosh.c	Use glibc_likely instead __builtin_expect.	2014-02-10 15:07:12 +01:00
e_cosh.c	Fix expm1 missing underflows (bug 16353).	2015-06-22 21:06:19 +00:00
e_fmod.c	Add #include <stdint.h> for uint[32|64]_t usage (except installed headers).	2013-05-16 11:32:54 -05:00
e_log2.c	Use glibc_likely instead __builtin_expect.	2014-02-10 15:07:12 +01:00
e_log10.c	Use glibc_likely instead __builtin_expect.	2014-02-10 15:07:12 +01:00
s_ceil.c	Do not raise "inexact" from generic ceil (bug 15479).	2016-05-24 17:42:10 +00:00
s_finite.c	Fix __finitel libm compat symbol version.	2016-01-20 19:04:43 +00:00
s_floor.c	Do not raise "inexact" from generic floor (bug 15479).	2016-05-24 17:44:46 +00:00
s_frexp.c	Fix frexp (NaN) (bug 20250).	2016-06-13 17:27:19 +00:00
s_isinf.c	math: add LDBL_CLASSIFY_COMPAT support	2015-12-03 13:00:46 -05:00
s_isnan.c	math: add LDBL_CLASSIFY_COMPAT support	2015-12-03 13:00:46 -05:00
s_issignaling.c	Define HIGH_ORDER_BIT_IS_SET_FOR_SNAN to 0 or 1.	2016-10-17 22:48:51 +00:00
s_llround.c	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
s_logb.c	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
s_lround.c	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
s_modf.c	Add #include <stdint.h> for uint[32|64]_t usage (except installed headers).	2013-05-16 11:32:54 -05:00
s_nearbyint.c	Use __copysign rather than copysign.	2015-04-22 12:07:56 +00:00
s_remquo.c	Update copyright dates with scripts/update-copyrights.	2016-01-04 16:05:18 +00:00
s_rint.c	Clean up dbl-64 rint, nearbyint.	2012-03-13 14:12:44 +00:00
s_round.c	Do not raise "inexact" from generic round (bug 15479).	2016-05-24 17:46:55 +00:00
s_scalbln.c	[BZ #6803] Set errno for scalbln, scalbn	2014-06-20 07:48:20 +05:30
s_scalbn.c	Make scalbn set errno (bug 6803).	2015-09-16 21:11:00 +00:00
s_totalorder.c	Define HIGH_ORDER_BIT_IS_SET_FOR_SNAN to 0 or 1.	2016-10-17 22:48:51 +00:00
s_totalordermag.c	Define HIGH_ORDER_BIT_IS_SET_FOR_SNAN to 0 or 1.	2016-10-17 22:48:51 +00:00
s_trunc.c	sparc64: add a VIS3 version of ceil, floor and trunc	2016-08-03 13:35:22 +02:00