/* Enable floating-point exceptions. Copyright (C) 2000-2015 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>, 2000. 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> #include <fenv_libc.h> #include <fpu_control.h> int feenableexcept (int excepts) { unsigned int new_exc, old_exc; /* Get the current control word. */ _FPU_GETCW (new_exc); old_exc = (new_exc & ENABLE_MASK) >> ENABLE_SHIFT; excepts &= FE_ALL_EXCEPT; new_exc |= excepts << ENABLE_SHIFT; _FPU_SETCW (new_exc); return old_exc; }