1 /* Wrapper to set errno for fmod.
2 Copyright (C) 2017-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 /* Only build wrappers from the templates for the types that define the macro
20 below. This macro is set in math-type-macros-<type>.h in sysdeps/generic
21 for each floating-point type. */
22 #if __USE_WRAPPER_TEMPLATE
23
24 # include <errno.h>
25 # include <fenv.h>
26 # include <math.h>
27 # include <math_private.h>
28
29 FLOAT
M_DECL_FUNC(__fmod)30 M_DECL_FUNC (__fmod) (FLOAT x, FLOAT y)
31 {
32 if (__builtin_expect (isinf (x) || y == 0, 0) && !isnan (y) && !isnan (x))
33 /* Domain error: fmod(+-Inf,y) or fmod(x,0).
34 If x or y are nan, these conditions should not be considered. */
35 __set_errno (EDOM);
36 return M_SUF (__ieee754_fmod) (x, y);
37 }
38 declare_mgen_alias (__fmod, fmod)
39
40 #endif /* __USE_WRAPPER_TEMPLATE. */
41