| /* Copyright (C) 1997-2014 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 Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <fenv.h> |
| #include <fpu_control.h> |
| |
| int |
| fesetenv (const fenv_t *envp) |
| { |
| fpu_control_t fpcr; |
| fpu_fpsr_t fpsr; |
| |
| _FPU_GETCW (fpcr); |
| _FPU_GETFPSR (fpsr); |
| |
| fpcr &= _FPU_RESERVED; |
| fpsr &= _FPU_FPSR_RESERVED; |
| |
| if (envp == FE_DFL_ENV) |
| { |
| fpcr |= _FPU_DEFAULT; |
| fpsr |= _FPU_FPSR_DEFAULT; |
| } |
| else if (envp == FE_NOMASK_ENV) |
| { |
| fpcr |= _FPU_FPCR_IEEE; |
| fpsr |= _FPU_FPSR_IEEE; |
| } |
| else |
| { |
| fpcr |= envp->__fpcr & ~_FPU_RESERVED; |
| fpsr |= envp->__fpsr & ~_FPU_FPSR_RESERVED; |
| } |
| |
| _FPU_SETFPSR (fpsr); |
| |
| _FPU_SETCW (fpcr); |
| |
| return 0; |
| } |
| |
| libm_hidden_def (fesetenv) |
