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| author | Joseph Myers <joseph@codesourcery.com> | 2017-06-28 17:53:46 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-06-28 17:53:46 +0000 |
| commit | 614d15f9324a871cc742a8952a3117c57831a3c5 (patch) | |
| tree | 2f26941c16b83c11a4ed4939341f4c75d415b9ab /NEWS | |
| parent | 0908a38adc6e479d4c52713b09417769282e2db0 (diff) | |
| download | glibc-614d15f9324a871cc742a8952a3117c57831a3c5.zip glibc-614d15f9324a871cc742a8952a3117c57831a3c5.tar.gz glibc-614d15f9324a871cc742a8952a3117c57831a3c5.tar.bz2 | |
Support _Float128 in tgmath.h.
This patch adds tgmath.h support for _Float128, so eliminating the
awkward caveat in NEWS about the type not being supported there. This
does inevitably increase the size of macro expansions (which grows
particularly fast when you have nested calls to tgmath.h macros), but
only when _Float128 is supported and the declarations of _Float128
interfaces are visible; otherwise the expansions are unchanged.
Tested for x86_64 and arm.
* math/tgmath.h: Include <bits/libc-header-start.h> and
<bits/floatn.h>.
(__TGMATH_F128): New macro.
(__TGMATH_CF128): Likewise.
(__TGMATH_UNARY_REAL_ONLY): Use __TGMATH_F128.
(__TGMATH_UNARY_REAL_RET_ONLY): Likewise.
(__TGMATH_BINARY_FIRST_REAL_ONLY): Likewise.
(__TGMATH_BINARY_FIRST_REAL_STD_ONLY): New macro.
(__TGMATH_BINARY_REAL_ONLY): Use __TGMATH_F128.
(__TGMATH_BINARY_REAL_STD_ONLY): New macro.
(__TGMATH_BINARY_REAL_RET_ONLY): Use __TGMATH_F128.
(__TGMATH_TERNARY_FIRST_SECOND_REAL_ONLY): Likewise.
(__TGMATH_TERNARY_REAL_ONLY): Likewise.
(__TGMATH_TERNARY_FIRST_REAL_RET_ONLY): Likewise.
(__TGMATH_UNARY_REAL_IMAG): Use __TGMATH_CF128.
(__TGMATH_UNARY_IMAG): Use __TGMATH_F128.
(__TGMATH_UNARY_REAL_IMAG_RET_REAL): Use __TGMATH_CF128.
(__TGMATH_BINARY_REAL_IMAG): Likewise.
(nexttoward): Use __TGMATH_BINARY_FIRST_REAL_STD_ONLY.
[__USE_MISC] (scalb): Use __TGMATH_BINARY_REAL_STD_ONLY.
* math/gen-tgmath-tests.py (Type.init_types): Enable _FloatN and
_FloatNx types if the corresponding HUGE_VAL macros are defined.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -135,10 +135,10 @@ Version 2.26 * Support is added, on powerpc64le, x86_64, x86 and ia64, for interfaces supporting the _Float128 type from ISO/IEC TS 18661-3:2015. Most of the interfaces are taken from TS 18661-3. The type-generic macros in <math.h> - support this type, but those in <tgmath.h> do not. The GNU C Library now - requires GCC 6.2 or later to build for powerpc64le. When used with GCC - versions before GCC 7, these interfaces may be used with the type under - the non-standard name __float128. + and <tgmath.h> support this type. The GNU C Library now requires GCC 6.2 + or later to build for powerpc64le. When used with GCC versions before GCC + 7, these interfaces may be used with the type under the non-standard name + __float128. New <stdlib.h> functions from ISO/IEC TS 18661-3: |