1 /* Copyright (C) 2000-2021 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 #define NO_MATH_REDIRECT
19 #include <math.h>
20 #include <math_ldbl_opt.h>
21 #include <libm-alias-double.h>
22 
23 double
__copysign(double x,double y)24 __copysign (double x, double y)
25 {
26   return __builtin_copysign (x, y);
27 }
28 
29 libm_alias_double (__copysign, copysign)
30 #if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
31 compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
32 #endif
33