| /* Clear given exceptions in current floating-point environment. |
| Copyright (C) 1998-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Alexandre Oliva <aoliva@redhat.com> |
| based on corresponding file in the MIPS port. |
| |
| 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> |
| #include <shlib-compat.h> |
| |
| int |
| __feclearexcept (int excepts) |
| { |
| fpu_control_t cw; |
| |
| /* Mask out unsupported bits/exceptions. */ |
| excepts &= FE_ALL_EXCEPT; |
| |
| /* Read the complete control word. */ |
| _FPU_GETCW (cw); |
| |
| /* Clear exception flag bits and cause bits. EF bits are cleared by |
| assigning 1 to them (and there's no way to set them); other bits |
| are copied normally. */ |
| |
| cw &= ~((excepts << CAUSE_SHIFT) | FE_ALL_EXCEPT); |
| cw |= excepts; |
| |
| /* Put the new data in effect. */ |
| _FPU_SETFCW (cw); |
| |
| /* Success. */ |
| return 0; |
| } |
| |
| libm_hidden_ver (__feclearexcept, feclearexcept) |
| versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2); |
