1 /* Disable floating-point exceptions.
2 Copyright (C) 2000-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Geoffrey Keating <geoffk@geoffk.org>, 2000.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
20 #include <fenv_libc.h>
23 fedisableexcept (int excepts
)
25 fenv_union_t fe
, curr
;
28 /* Get current exception mask to return. */
29 fe
.fenv
= curr
.fenv
= fegetenv_control ();
30 result
= fenv_reg_to_exceptions (fe
.l
);
32 if ((excepts
& FE_ALL_INVALID
) == FE_ALL_INVALID
)
33 excepts
= (excepts
| FE_INVALID
) & ~ FE_ALL_INVALID
;
35 new = fenv_exceptions_to_reg (excepts
);
37 if (fenv_reg_to_exceptions (new) != excepts
)
40 /* Sets the new exception mask. */
44 fesetenv_control (fe
.fenv
);
46 __TEST_AND_ENTER_NON_STOP (-1ULL, fe
.l
);