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Split helper classification macros from mathcalls.h

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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
2017-03-06 17:02:37 -03:00
parent 826aa1346f
commit ff80ec4283
6 changed files with 59 additions and 29 deletions
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28
math/bits/mathcalls.h
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@ -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__));