glibc/math/w_remainder_template.c
Gabriel F. T. Gomes aec0821ce7 Add new templates for IEEE wrappers
Several wrappers for IEEE functions use _LIB_VERSION / matherr /
__kernel_standard functionality, which we want to obsolete.  New
wrappers, such as for float128, must not use this functionality.

This patch adds new wrappers that only __set_errno and can be used by
the new float128 wrappers.

Tested for powerpc64le.

	* math/Makefile: Add wrappers to gen-libm-calls.
	* math/w_acos_template.c: New file.
	* math/w_acosh_template.c: Likewise.
	* math/w_asin_template.c: Likewise.
	* math/w_atan2_template.c: Likewise.
	* math/w_atanh_template.c: Likewise.
	* math/w_cosh_template.c: Likewise.
	* math/w_exp10_template.c: Likewise.
	* math/w_exp2_template.c: Likewise.
	* math/w_exp_template.c: Likewise.
	* math/w_fmod_template.c: Likewise.
	* math/w_hypot_template.c: Likewise.
	* math/w_j0_template.c: Likewise.
	* math/w_j1_template.c: Likewise.
	* math/w_jn_template.c: Likewise.
	* math/w_lgamma_r_template.c: Likewise.
	* math/w_lgamma_template.c: Likewise.
	* math/w_log10_template.c: Likewise.
	* math/w_log2_template.c: Likewise.
	* math/w_log_template.c: Likewise.
	* math/w_pow_template.c: Likewise.
	* math/w_remainder_template.c: Likewise.
	* math/w_sinh_template.c: Likewise.
	* math/w_sqrt_template.c: Likewise.
	* math/w_tgamma_template.c: Likewise.: Likewise.
	* sysdeps/generic/math-type-macros-double.h
	(__USE_WRAPPER_TEMPLATE): New macro to control inclusion of
	the new wrappers.
	* sysdeps/generic/math-type-macros-float.h: Likewise.
	* sysdeps/generic/math-type-macros-ldouble.h: Likewise.
2017-02-23 11:28:50 -03:00

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1.5 KiB
C

/* Wrapper to set errno for remainder.
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/>. */
/* Only build wrappers from the templates for the types that define the macro
below. This macro is set in math-type-macros-<type>.h in sysdeps/generic
for each floating-point type. */
#if __USE_WRAPPER_TEMPLATE
# include <fenv.h>
# include <math.h>
# include <math_private.h>
FLOAT
M_DECL_FUNC (__remainder) (FLOAT x, FLOAT y)
{
if (__glibc_unlikely (isinf (x) || y == 0) && !isnan (y) && !isnan (x))
/* Domain error: remainder(+-Inf,y) or remainder(x,0).
If x or y are nan, these conditions should not be considered. */
__set_errno (EDOM);
return M_SUF (__ieee754_remainder) (x, y);
}
declare_mgen_alias (__remainder, remainder)
#endif /* __USE_WRAPPER_TEMPLATE. */