You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1010 B
42 lines
1010 B
/* @(#)w_cosh.c 5.1 93/09/24 */
|
|
/*
|
|
* ====================================================
|
|
* 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: w_cosh.c,v 1.6 1995/05/10 20:48:47 jtc Exp $";
|
|
#endif
|
|
|
|
/*
|
|
* wrapper cosh(x)
|
|
*/
|
|
|
|
#include "math.h"
|
|
#include "math_private.h"
|
|
|
|
#ifdef __STDC__
|
|
double cosh(double x) /* wrapper cosh */
|
|
#else
|
|
double cosh(x) /* wrapper cosh */
|
|
double x;
|
|
#endif
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_cosh(x);
|
|
#else
|
|
double z;
|
|
z = __ieee754_cosh(x);
|
|
if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
|
|
if(fabs(x)>7.10475860073943863426e+02) {
|
|
return __kernel_standard(x,x,5); /* cosh overflow */
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|
|
|