sysdeps/i386/fpu/fgetexcptflg.c

   1 /* Store current representation for exceptions.
   2    Copyright (C) 1997,99,2000,01 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
   5
   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.
  10
  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.
  15
  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.  */
  20
  21 #include <fenv.h>
  22 #include <bp-sym.h>
  23
  24 int
  25 __fegetexceptflag (fexcept_t *flagp, int excepts)
  26 {
  27   fexcept_t temp;
  28
  29   /* Get the current exceptions.  */
  30   __asm__ ("fnstsw %0" : "=m" (*&temp));
  31
  32   *flagp = temp & excepts & FE_ALL_EXCEPT;
  33
  34   /* Success.  */
  35   return 0;
  36 }
  37
  38 #include <shlib-compat.h>
  39 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
  40 strong_alias (__fegetexceptflag, __old_fegetexceptflag)
  41 compat_symbol (libm, BP_SYM (__old_fegetexceptflag), BP_SYM (fegetexceptflag), GLIBC_2_1);
  42 #endif
  43
  44 versioned_symbol (libm, BP_SYM (__fegetexceptflag), BP_SYM (fegetexceptflag), GLIBC_2_2);