1
2/* @(#)w_cosh.c 1.3 95/01/18 */
3/*
4 * ====================================================
5 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 *
7 * Developed at SunSoft, a Sun Microsystems, Inc. business.
8 * Permission to use, copy, modify, and distribute this
9 * software is freely granted, provided that this notice
10 * is preserved.
11 * ====================================================
12 */
13
14/*
15 * wrapper ieee_cosh(x)
16 */
17
18#include "fdlibm.h"
19
20#ifdef __STDC__
21	double ieee_cosh(double x)		/* wrapper cosh */
22#else
23	double ieee_cosh(x)			/* wrapper cosh */
24	double x;
25#endif
26{
27#ifdef _IEEE_LIBM
28	return __ieee754_cosh(x);
29#else
30	double z;
31	z = __ieee754_cosh(x);
32	if(_LIB_VERSION == _IEEE_ || ieee_isnan(x)) return z;
33	if(ieee_fabs(x)>7.10475860073943863426e+02) {
34	        return __kernel_standard(x,x,5); /* cosh overflow */
35	} else
36	    return z;
37#endif
38}
39