1 /* @(#)w_atanh.c 5.1 93/09/24 */
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
10 * ====================================================
13 #if defined(LIBM_SCCS) && !defined(lint)
14 static char rcsid[] = "$NetBSD: w_atanh.c,v 1.6 1995/05/10 20:48:43 jtc Exp $";
22 #include "math_private.h"
26 double __atanh(double x) /* wrapper atanh */
28 double __atanh(x) /* wrapper atanh */
33 return __ieee754_atanh(x);
36 z = __ieee754_atanh(x);
37 if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z;
41 return __kernel_standard(x,x,30); /* atanh(|x|>1) */
43 return __kernel_standard(x,x,31); /* atanh(|x|==1) */
48 weak_alias (__atanh, atanh)
50 strong_alias (__atanh, __atanhl)
51 weak_alias (__atanh, atanhl)