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.
This commit is contained in:
Gabriel F. T. Gomes
parent
826aa1346f
commit
ff80ec4283
11
ChangeLog
11
ChangeLog
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@ -1,3 +1,14 @@
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2017-03-14 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
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* include/bits/mathcalls-helper-functions.h: New file.
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* math/Makefile (headers): Add bits/mathcalls-helper-functions.h.
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* math/bits/mathcalls.h (__finite, __fpclassify, __iseqsig)
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(__isinf, __isnan, __issignaling, __signbit): Move declarations to
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math/bits/mathcalls-helper-functions.h.
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* math/bits/mathcalls-helper-functions.h: New file.
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* math/math.h: Include bits/mathcalls-helper-functions.h for
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float, double, and long double.
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2017-03-15 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
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* math/s_iseqsig_template.c (__iseqsig): Use __feraiseexcept
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@ -0,0 +1 @@
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#include <math/bits/mathcalls-helper-functions.h>
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@ -29,7 +29,7 @@ headers := math.h bits/mathcalls.h bits/mathinline.h bits/huge_val.h \
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bits/math-finite.h bits/math-vector.h \
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bits/libm-simd-decl-stubs.h bits/iscanonical.h \
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bits/flt-eval-method.h bits/fp-fast.h bits/fp-logb.h \
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bits/long-double.h
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bits/long-double.h bits/mathcalls-helper-functions.h
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# FPU support code.
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aux := setfpucw fpu_control
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@ -0,0 +1,43 @@
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/* Prototype declarations for math classification macros helpers.
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Copyright (C) 2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* Classify given number. */
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__MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value))
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__attribute__ ((__const__));
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/* Test for negative number. */
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__MATHDECL_1 (int, __signbit,, (_Mdouble_ __value))
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__attribute__ ((__const__));
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/* Return 0 if VALUE is finite or NaN, +1 if it
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is +Infinity, -1 if it is -Infinity. */
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__MATHDECL_1 (int, __isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
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/* Return nonzero if VALUE is finite and not NaN. Used by isfinite macro. */
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__MATHDECL_1 (int, __finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
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/* Return nonzero if VALUE is not a number. */
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__MATHDECL_1 (int, __isnan,, (_Mdouble_ __value)) __attribute__ ((__const__));
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/* Test equality. */
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__MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y));
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/* Test for signaling NaN. */
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__MATHDECL_1 (int, __issignaling,, (_Mdouble_ __value))
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__attribute__ ((__const__));
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@ -187,14 +187,6 @@ __MATHCALLX (floor,, (_Mdouble_ __x), (__const__));
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/* Floating-point modulo remainder of X/Y. */
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__MATHCALL (fmod,, (_Mdouble_ __x, _Mdouble_ __y));
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/* Return 0 if VALUE is finite or NaN, +1 if it
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is +Infinity, -1 if it is -Infinity. */
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__MATHDECL_1 (int,__isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
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/* Return nonzero if VALUE is finite and not NaN. */
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__MATHDECL_1 (int,__finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
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_Mdouble_END_NAMESPACE
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#ifdef __USE_MISC
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@ -232,9 +224,6 @@ __END_NAMESPACE_C99
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#endif
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/* Return nonzero if VALUE is not a number. */
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__MATHDECL_1 (int,__isnan,, (_Mdouble_ __value)) __attribute__ ((__const__));
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#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
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# if (!defined __cplusplus \
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|| __cplusplus < 201103L /* isnan conflicts with C++11. */ \
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@ -366,16 +355,6 @@ __MATHCALLX (fmax,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
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/* Return minimum numeric value from X and Y. */
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__MATHCALLX (fmin,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
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/* Classify given number. */
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__MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value))
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__attribute__ ((__const__));
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/* Test for negative number. */
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__MATHDECL_1 (int, __signbit,, (_Mdouble_ __value))
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__attribute__ ((__const__));
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/* Multiply-add function computed as a ternary operation. */
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__MATHCALL (fma,, (_Mdouble_ __x, _Mdouble_ __y, _Mdouble_ __z));
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#endif /* Use ISO C99. */
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@ -416,13 +395,6 @@ __MATHCALLX (fmaxmag,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
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/* Return value with minimum magnitude. */
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__MATHCALLX (fminmag,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
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/* Test equality. */
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__MATHDECL_1 (int, __iseqsig,, (_Mdouble_ __x, _Mdouble_ __y));
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/* Test for signaling NaN. */
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__MATHDECL_1 (int, __issignaling,, (_Mdouble_ __value))
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__attribute__ ((__const__));
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/* Total order operation. */
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__MATHDECL_1 (int, totalorder,, (_Mdouble_ __x, _Mdouble_ __y))
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__attribute__ ((__const__));
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@ -210,6 +210,7 @@ enum
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#define __MATH_DECLARING_DOUBLE 1
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#define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD
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#define _Mdouble_END_NAMESPACE __END_NAMESPACE_STD
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#include <bits/mathcalls-helper-functions.h>
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#include <bits/mathcalls.h>
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#undef _Mdouble_
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#undef _Mdouble_BEGIN_NAMESPACE
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@ -231,6 +232,7 @@ enum
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# define __MATH_DECLARING_DOUBLE 0
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# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_C99
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# define _Mdouble_END_NAMESPACE __END_NAMESPACE_C99
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# include <bits/mathcalls-helper-functions.h>
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# include <bits/mathcalls.h>
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# undef _Mdouble_
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# undef _Mdouble_BEGIN_NAMESPACE
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@ -278,6 +280,7 @@ extern long double __REDIRECT_NTH (nexttowardl,
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# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_C99
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# define _Mdouble_END_NAMESPACE __END_NAMESPACE_C99
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# define __MATH_DECLARE_LDOUBLE 1
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# include <bits/mathcalls-helper-functions.h>
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# include <bits/mathcalls.h>
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# undef _Mdouble_
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# undef _Mdouble_BEGIN_NAMESPACE
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