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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/s390/fpu/fgetexcptflg.c
0a5a081d30bcacbfc8b42fd750ae8358a3c48ae7
1 /* Store current representation for exceptions.
2 Copyright (C) 2000-2015 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, see
18 <http://www.gnu.org/licenses/>. */
20 #include <fenv_libc.h>
21 #include <fpu_control.h>
24 fegetexceptflag (fexcept_t
*flagp
, int excepts
)
26 fexcept_t temp
, newexcepts
;
28 /* Get the current exceptions. */
30 newexcepts
= excepts
<< FPC_FLAGS_SHIFT
;
31 if ((temp
& FPC_NOT_FPU_EXCEPTION
) == 0)
32 /* Bits 6, 7 of dxc-byte are zero,
33 thus bits 0-5 of dxc-byte correspond to the flag-bits.
34 Evaluate flags and last dxc-exception-code. */
35 newexcepts
|= excepts
<< FPC_DXC_SHIFT
;
37 *flagp
= temp
& newexcepts
;