glibc/math/w_acosh.c

39 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <math.h>
#include <math_private.h>
/* wrapper acosh */
double
__acosh (double x)
{
if (__builtin_expect (x < 1.0, 0) && _LIB_VERSION != _IEEE_)
/* acosh(x<1) */
return __kernel_standard (x, x, 29);
return __ieee754_acosh (x);
}
weak_alias (__acosh, acosh)
#ifdef NO_LONG_DOUBLE
strong_alias (__acosh, __acoshl)
weak_alias (__acosh, acoshl)
#endif