1 /* Set floating-point environment exception handling.
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
21 int
__fesetexceptflag(const fexcept_t * flagp,int excepts)22 __fesetexceptflag (const fexcept_t *flagp, int excepts)
23 {
24 unsigned long int tmp;
25
26 /* Get the current exception state. */
27 tmp = __ieee_get_fp_control ();
28
29 /* Set all the bits that were called for. */
30 tmp = (tmp & ~SWCR_STATUS_MASK) | (*flagp & excepts & SWCR_STATUS_MASK);
31
32 /* And store it back. */
33 __ieee_set_fp_control (tmp);
34
35 /* Success. */
36 return 0;
37 }
38
39 #include <shlib-compat.h>
40 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
41 strong_alias (__fesetexceptflag, __old_fesetexceptflag)
42 compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1);
43 #endif
44
45 versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);
46