Current File : //glibc-2.29/sysdeps/csky/fpu/feupdateenv.c
/* Install given floating-point environment and raise exceptions.
Copyright (C) 2018-2019 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>
#include <fenv_libc.h>
#include <fenv_private.h>
#include <stdio.h>
int
__feupdateenv (const fenv_t *envp)
{
int temp;
/* Save current exceptions. */
_FPU_GETFPSR (temp);
temp = (temp >> CAUSE_SHIFT) & FE_ALL_EXCEPT;
/* Install new environment. */
__fesetenv (envp);
/* Raise the safed exception. Incidently for us the implementation
defined format of the values in objects of type fexcept_t is the
same as the ones specified using the FE_* constants. */
feraiseexcept (temp);
/* Success. */
return 0;
}
libm_hidden_def (__feupdateenv)
weak_alias (__feupdateenv, feupdateenv)
libm_hidden_weak (feupdateenv)
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