1 /* Disable floating-point exceptions.
2 Copyright (C) 2000-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #include <fenv_libc.h>
22 fedisableexcept (int excepts
)
24 fenv_union_t fe
, curr
;
27 /* Get current exception mask to return. */
28 fe
.fenv
= curr
.fenv
= fegetenv_control ();
29 result
= fenv_reg_to_exceptions (fe
.l
);
31 if ((excepts
& FE_ALL_INVALID
) == FE_ALL_INVALID
)
32 excepts
= (excepts
| FE_INVALID
) & ~ FE_ALL_INVALID
;
34 new = fenv_exceptions_to_reg (excepts
);
36 if (fenv_reg_to_exceptions (new) != excepts
)
39 /* Sets the new exception mask. */
43 fesetenv_control (fe
.fenv
);
45 __TEST_AND_ENTER_NON_STOP (-1ULL, fe
.l
);