1 /* Copyright (C) 2011-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <math.h>
19 #include <math_private.h>
20 #include <math-svid-compat.h>
21 #include <libm-alias-double.h>
22
23 #if LIBM_SVID_COMPAT
24 /* wrapper fmod */
25 double
__fmod(double x,double y)26 __fmod (double x, double y)
27 {
28 if (__builtin_expect (isinf (x) || y == 0.0, 0)
29 && _LIB_VERSION != _IEEE_ && !isnan (y) && !isnan (x))
30 /* fmod(+-Inf,y) or fmod(x,0) */
31 return __kernel_standard (x, y, 27);
32
33 return __ieee754_fmod (x, y);
34 }
35 libm_alias_double (__fmod, fmod)
36 #endif
37