glibc/math/w_asin.c

42 lines
1.3 KiB
C

/* Copyright (C) 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
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 <math.h>
#include <math_private.h>
/* wrapper asin */
double
__asin (double x)
{
if (__builtin_expect (fabs (x) > 1.0, 0) && _LIB_VERSION != _IEEE_)
{
/* asin(|x|>1) */
feraiseexcept (FE_INVALID);
return __kernel_standard (x, x, 2);
}
return __ieee754_asin (x);
}
weak_alias (__asin, asin)
#ifdef NO_LONG_DOUBLE
strong_alias (__asin, __asinl)
weak_alias (__asin, asinl)
#endif