1 | /* Wrapper to set errno for sqrt. |
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 | # define NO_MATH_REDIRECT |
25 | # include <errno.h> |
26 | # include <fenv.h> |
27 | # define dsqrtl __hide_dsqrtl |
28 | # define f32xsqrtf64 __hide_f32xsqrtf64 |
29 | # define f64xsqrtf128 __hide_f64xsqrtf128 |
30 | # include <math.h> |
31 | # undef dsqrtl |
32 | # undef f32xsqrtf64 |
33 | # undef f64xsqrtf128 |
34 | # include <math_private.h> |
35 | # include <math-narrow-alias.h> |
36 | |
37 | FLOAT |
38 | M_DECL_FUNC (__sqrt) (FLOAT x) |
39 | { |
40 | if (__glibc_unlikely (isless (x, M_LIT (0.0)))) |
41 | /* Domain error: sqrt(x<-0). */ |
42 | __set_errno (EDOM); |
43 | return M_SUF (__ieee754_sqrt) (x); |
44 | } |
45 | declare_mgen_alias (__sqrt, sqrt) |
46 | declare_mgen_alias_narrow (__sqrt, sqrt) |
47 | |
48 | #endif /* __USE_WRAPPER_TEMPLATE. */ |
49 | |