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author | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2017-03-06 17:02:37 -0300 |
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committer | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2017-03-15 09:39:16 -0300 |
commit | ff80ec4283493958d7ee9ac8e41ca09837f70bcd (patch) | |
tree | 2e2dcec1d69568a34892127f2ae397cdc140a86c /math/bits | |
parent | 826aa1346f51ead7b9483ee3f269c78c3bf6310d (diff) | |
download | glibc-ff80ec4283493958d7ee9ac8e41ca09837f70bcd.tar.gz glibc-ff80ec4283493958d7ee9ac8e41ca09837f70bcd.tar.xz glibc-ff80ec4283493958d7ee9ac8e41ca09837f70bcd.zip |
Split helper classification macros from mathcalls.h
The classification macros: finite, fpclassify, iseqsig, isinf, isnan, issignaling, and signbit are defined by ISO C11 and declared in mathcalls.h for each of the floating-point types: float, double, and long double. TS 18661-3 does not mention these macros for float128, however support for them must be present when _Float128 is present. This is true, even when the feature test macro __STDC_WANT_IEC_60559_TYPES_EXT__ is false. Other function declarations in mathcalls.h, on the other hand, depend on __STDC_WANT_IEC_60559_TYPES_EXT__. This patch splits the helper functions (__finite, __fpclassify, __iseqsig, __isinf, __isnan, __issignaling, and __signbit) from mathcalls.h, so that these helper functions can be declared for _Float128, even when __STDC_WANT_IEC_60559_TYPES_EXT__ is false. Tested for powerpc64le, s390x, and x86_64. * include/bits/mathcalls-helper-functions.h: New file. * math/Makefile (headers): Add bits/mathcalls-helper-functions.h. * math/bits/mathcalls.h (__finite, __fpclassify, __iseqsig) (__isinf, __isnan, __issignaling, __signbit): Move declarations to math/bits/mathcalls-helper-functions.h. * math/bits/mathcalls-helper-functions.h: New file. * math/math.h: Include bits/mathcalls-helper-functions.h for float, double, and long double.
Diffstat (limited to 'math/bits')
-rw-r--r-- | math/bits/mathcalls-helper-functions.h | 43 | ||||
-rw-r--r-- | math/bits/mathcalls.h | 28 |
2 files changed, 43 insertions, 28 deletions
diff --git a/math/bits/mathcalls-helper-functions.h b/math/bits/mathcalls-helper-functions.h new file mode 100644 index 0000000000..dec2d99f69 --- /dev/null +++ b/math/bits/mathcalls-helper-functions.h @@ -0,0 +1,43 @@ +/* Prototype declarations for math classification macros helpers. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + + +/* Classify given number. */ +__MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value)) + __attribute__ ((__const__)); + +/* Test for negative number. */ +__MATHDECL_1 (int, __signbit,, (_Mdouble_ __value)) + __attribute__ ((__const__)); + +/* Return 0 if VALUE is finite or NaN, +1 if it + is +Infinity, -1 if it is -Infinity. */ +__MATHDECL_1 (int, __isinf,, (_Mdouble_ __value)) __attribute__ ((__const__)); + +/* Return nonzero if VALUE is finite and not NaN. Used by isfinite macro. */ +__MATHDECL_1 (int, __finite,, (_Mdouble_ __value)) __attribute__ ((__const__)); + +/* Return nonzero if VALUE is not a number. */ +__MATHDECL_1 (int, __isnan,, (_Mdouble_ __value)) __attribute__ ((__const__)); + +/* Test equality. */ +__MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y)); + +/* Test for signaling NaN. */ +__MATHDECL_1 (int, __issignaling,, (_Mdouble_ __value)) + __attribute__ ((__const__)); diff --git a/math/bits/mathcalls.h b/math/bits/mathcalls.h index 3d3b4142b9..fe315fd3d1 100644 --- a/math/bits/mathcalls.h +++ b/math/bits/mathcalls.h @@ -187,14 +187,6 @@ __MATHCALLX (floor,, (_Mdouble_ __x), (__const__)); /* Floating-point modulo remainder of X/Y. */ __MATHCALL (fmod,, (_Mdouble_ __x, _Mdouble_ __y)); - - -/* Return 0 if VALUE is finite or NaN, +1 if it - is +Infinity, -1 if it is -Infinity. */ -__MATHDECL_1 (int,__isinf,, (_Mdouble_ __value)) __attribute__ ((__const__)); - -/* Return nonzero if VALUE is finite and not NaN. */ -__MATHDECL_1 (int,__finite,, (_Mdouble_ __value)) __attribute__ ((__const__)); _Mdouble_END_NAMESPACE #ifdef __USE_MISC @@ -232,9 +224,6 @@ __END_NAMESPACE_C99 #endif -/* Return nonzero if VALUE is not a number. */ -__MATHDECL_1 (int,__isnan,, (_Mdouble_ __value)) __attribute__ ((__const__)); - #if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K) # if (!defined __cplusplus \ || __cplusplus < 201103L /* isnan conflicts with C++11. */ \ @@ -366,16 +355,6 @@ __MATHCALLX (fmax,, (_Mdouble_ __x, _Mdouble_ __y), (__const__)); /* Return minimum numeric value from X and Y. */ __MATHCALLX (fmin,, (_Mdouble_ __x, _Mdouble_ __y), (__const__)); - -/* Classify given number. */ -__MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value)) - __attribute__ ((__const__)); - -/* Test for negative number. */ -__MATHDECL_1 (int, __signbit,, (_Mdouble_ __value)) - __attribute__ ((__const__)); - - /* Multiply-add function computed as a ternary operation. */ __MATHCALL (fma,, (_Mdouble_ __x, _Mdouble_ __y, _Mdouble_ __z)); #endif /* Use ISO C99. */ @@ -416,13 +395,6 @@ __MATHCALLX (fmaxmag,, (_Mdouble_ __x, _Mdouble_ __y), (__const__)); /* Return value with minimum magnitude. */ __MATHCALLX (fminmag,, (_Mdouble_ __x, _Mdouble_ __y), (__const__)); -/* Test equality. */ -__MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y)); - -/* Test for signaling NaN. */ -__MATHDECL_1 (int, __issignaling,, (_Mdouble_ __value)) - __attribute__ ((__const__)); - /* Total order operation. */ __MATHDECL_1 (int, totalorder,, (_Mdouble_ __x, _Mdouble_ __y)) __attribute__ ((__const__)); |