| /* Return current rounding direction. |
| Copyright (C) 1997-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <fenv.h> |
| |
| int |
| fegetround (void) |
| { |
| int cw; |
| /* We only check the x87 FPU unit. The SSE unit should be the same |
| - and if it's not the same there's no way to signal it. */ |
| |
| __asm__ ("fnstcw %0" : "=m" (*&cw)); |
| |
| return cw & 0xc00; |
| } |
| libm_hidden_def (fegetround) |
