/* Test exception in current environment. Copyright (C) 2001-2017 Free Software Foundation, Inc. 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 fetestexcept (int excepts) { int temp; unsigned int mxscr; /* Get current exceptions. */ __asm__ ("fnstsw %0\n" "stmxcsr %1" : "=m" (*&temp), "=m" (*&mxscr)); return (temp | mxscr) & excepts & FE_ALL_EXCEPT; }