1/* Store current floating-point environment and clear exceptions.
2 Copyright (C) 1997-2022 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#include <fenv_libc.h>
20
21int
22__feholdexcept (fenv_t *envp)
23{
24 /* Save the current state. */
25 __fegetenv(envp: envp);
26
27 /* Clear all exception status bits and exception enable bits. */
28 __ieee_set_fp_control(*envp & SWCR_MAP_MASK);
29
30 return 0;
31}
32libm_hidden_def (__feholdexcept)
33weak_alias (__feholdexcept, feholdexcept)
34libm_hidden_weak (feholdexcept)
35

source code of glibc/sysdeps/alpha/fpu/feholdexcpt.c