mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-24 03:31:07 +00:00
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
|
/* Get floating-point exceptions.
|
||
|
Copyright (C) 2000 Free Software Foundation, Inc.
|
||
|
This file is part of the GNU C Library.
|
||
|
Contributed by Geoffrey Keating <geoffk@geoffk.org>, 2000.
|
||
|
|
||
|
The GNU C Library is free software; you can redistribute it and/or
|
||
|
modify it under the terms of the GNU Library General Public License as
|
||
|
published by the Free Software Foundation; either version 2 of the
|
||
|
License, or (at your option) any later version.
|
||
|
|
||
|
The GNU C Library is distributed in the hope that it will be useful,
|
||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
Library General Public License for more details.
|
||
|
|
||
|
You should have received a copy of the GNU Library General Public
|
||
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
|
Boston, MA 02111-1307, USA. */
|
||
|
|
||
|
#include <fenv_libc.h>
|
||
|
|
||
|
int
|
||
|
fegetexcept (void)
|
||
|
{
|
||
|
fenv_union_t fe;
|
||
|
int result = 0;
|
||
|
|
||
|
fe.fenv = fegetenv_register ();
|
||
|
|
||
|
if (fe.l[1] & (1 << (31 - FPSCR_XE)))
|
||
|
result |= FE_INEXACT;
|
||
|
if (fe.l[1] & (1 << (31 - FPSCR_ZE)))
|
||
|
result |= FE_DIVBYZERO;
|
||
|
if (fe.l[1] & (1 << (31 - FPSCR_UE)))
|
||
|
result |= FE_UNDERFLOW;
|
||
|
if (fe.l[1] & (1 << (31 - FPSCR_OE)))
|
||
|
result |= FE_OVERFLOW;
|
||
|
if (fe.l[1] & (1 << (31 - FPSCR_VE)))
|
||
|
result |= FE_INVALID;
|
||
|
|
||
|
return result;
|
||
|
}
|