1 /* Clear given exceptions in current floating-point environment.
2 Copyright (C) 1998-2025 Free Software Foundation, Inc.
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 <fenv.h>
19 #include <fpu_control.h>
20
21 int
feclearexcept(int excepts)22 feclearexcept (int excepts)
23 {
24 fpu_control_t cw;
25
26 /* Mask out unsupported bits/exceptions. */
27 excepts &= FE_ALL_EXCEPT;
28
29 /* Read the complete control word. */
30 _FPU_GETCW (cw);
31
32 /* Clear exception bits. */
33 cw &= ~excepts;
34
35 /* Put the new data in effect. */
36 _FPU_SETCW (cw);
37
38 return 0;
39 }
40