mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 02:20:10 +00:00
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
|
/* w_atanhl.c -- long double version of w_atanh.c.
|
||
|
|
* Conversion to long double by Ulrich Drepper,
|
||
|
|
* Cygnus Support, drepper@cygnus.com.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ====================================================
|
||
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
||
|
|
* Permission to use, copy, modify, and distribute this
|
||
|
|
* software is freely granted, provided that this notice
|
||
|
|
* is preserved.
|
||
|
|
* ====================================================
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
||
|
|
static char rcsid[] = "$NetBSD: $";
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* wrapper atanhl(x)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "math.h"
|
||
|
|
#include "math_private.h"
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __STDC__
|
||
|
|
long double __atanhl(long double x) /* wrapper atanhl */
|
||
|
|
#else
|
||
|
|
long double __atanhl(x) /* wrapper atanhl */
|
||
|
|
long double x;
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
#ifdef _IEEE_LIBM
|
||
|
|
return __ieee754_atanhl(x);
|
||
|
|
#else
|
||
|
|
long double z,y;
|
||
|
|
z = __ieee754_atanhl(x);
|
||
|
|
if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z;
|
||
|
|
y = fabsl(x);
|
||
|
|
if(y>=1.0) {
|
||
|
|
if(y>1.0)
|
||
|
|
return __kernel_standard(x,x,230); /* atanhl(|x|>1) */
|
||
|
|
else
|
||
|
|
return __kernel_standard(x,x,231); /* atanhl(|x|==1) */
|
||
|
|
} else
|
||
|
|
return z;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
weak_alias (__atanhl, atanhl)
|