sysdeps/s390/fpu/fesetround.c

   1 /* Set current rounding direction.
   2    Copyright (C) 2000-2024 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_private.h>
  20
  21 int
  22 __fesetround (int round)
  23 {
  24   if ((round | FPC_RM_MASK) != FPC_RM_MASK)
  25     {
  26       /* ROUND is not a valid rounding mode.  */
  27       return 1;
  28     }
  29
  30   libc_fesetround_s390 (round);
  31   return 0;
  32 }
  33 libm_hidden_def (__fesetround)
  34 weak_alias (__fesetround, fesetround)
  35 libm_hidden_weak (fesetround)