/* Store current floating-point environment and clear exceptions. Copyright (C) 1997, 1998, 1999, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. 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 General Public License along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include #include #include #include #include #include int feholdexcept (fenv_t *envp) { if (GLRO (dl_hwcap) & HWCAP_VFP) { unsigned long int temp; /* Store the environment. */ _FPU_GETCW(temp); envp->__cw = temp; /* Now set all exceptions to non-stop. */ temp &= ~(FE_ALL_EXCEPT << FE_EXCEPT_SHIFT); /* And clear all exception flags. */ temp &= ~FE_ALL_EXCEPT; _FPU_SETCW(temp); return 0; } /* Unsupported, so fail. */ return 1; } libm_hidden_def (feholdexcept)