1/* Copyright (C) 2001-2022 Free Software Foundation, Inc.
2
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 License as
7 published by the Free Software Foundation; either version 2.1 of the
8 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.h>
20#include <fpu_control.h>
21
22int
23fedisableexcept (int excepts)
24{
25 fpu_control_t fpcr;
26 fpu_control_t fpcr_new;
27
28 _FPU_GETCW (fpcr);
29 excepts &= FE_ALL_EXCEPT;
30 fpcr_new = fpcr & ~(excepts << FE_EXCEPT_SHIFT);
31
32 if (fpcr != fpcr_new)
33 _FPU_SETCW (fpcr_new);
34
35 return (fpcr >> FE_EXCEPT_SHIFT) & FE_ALL_EXCEPT;
36}
37

source code of glibc/sysdeps/aarch64/fpu/fedisblxcpt.c