* sysdeps/ieee754/k_standard.c (__kernel_standard): Pole errors
[glibc.git] / sysdeps / s390 / fpu / fsetexcptflg.c
blob12e3409d1c43ccd00a52d420237e687f76e92ece
1 /* Set floating-point environment exception handling.
2 Copyright (C) 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
21 #include <fenv_libc.h>
22 #include <math.h>
23 #include <fpu_control.h>
25 int
26 fesetexceptflag (const fexcept_t *flagp, int excepts)
28 fexcept_t temp,newexcepts;
30 /* Get the current environment. We have to do this since we cannot
31 separately set the status word. */
32 _FPU_GETCW (temp);
33 /* Install the new exception bits in the Accrued Exception Byte. */
34 excepts = excepts & FE_ALL_EXCEPT;
35 newexcepts = (excepts << FPC_DXC_SHIFT) | (excepts << FPC_FLAGS_SHIFT);
36 temp &= ~newexcepts;
37 temp |= *flagp & newexcepts;
39 /* Store the new status word (along with the rest of the environment.
40 Possibly new exceptions are set but they won't get executed unless
41 the next floating-point instruction. */
42 _FPU_SETCW (temp);
44 /* Success. */
45 return 0;