sysdeps/sparc/fpu/fsetexcptflg.c

   1 /* Set floating-point environment exception handling.
   2    Copyright (C) 1997-2021 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.h>
  20 #include <fenv_private.h>
  21 #include <math.h>
  22 #include <shlib-compat.h>
  23
  24 int
  25 __fesetexceptflag (const fexcept_t *flagp, int excepts)
  26 {
  27   fenv_t tmp;
  28
  29   __fenv_stfsr (tmp);
  30
  31   tmp &= ~(excepts & FE_ALL_EXCEPT);
  32   tmp |= *flagp & excepts & FE_ALL_EXCEPT;
  33
  34   __fenv_ldfsr (tmp);
  35
  36   /* Success.  */
  37   return 0;
  38 }
  39
  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);