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 #define NO_MATH_REDIRECT
19 #define dsqrtl __hide_dsqrtl
20 #define f32xsqrtf64 __hide_f32xsqrtf64
21 #include <math.h>
22 #undef dsqrtl
23 #undef f32xsqrtf64
24 #include <math_private.h>
25 #include <math-svid-compat.h>
26 #include <math-narrow-alias.h>
27 #include <libm-alias-double.h>
28
29
30 #if LIBM_SVID_COMPAT
31 /* wrapper sqrt */
32 double
__sqrt(double x)33 __sqrt (double x)
34 {
35 if (__builtin_expect (isless (x, 0.0), 0) && _LIB_VERSION != _IEEE_)
36 return __kernel_standard (x, x, 26); /* sqrt(negative) */
37
38 return __ieee754_sqrt (x);
39 }
40 libm_alias_double (__sqrt, sqrt)
41 libm_alias_double_narrow (__sqrt, sqrt)
42 #endif
43