1 /* w_coshf.c -- float version of w_cosh.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
4
5 /*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8 *
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
12 * is preserved.
13 * ====================================================
14 */
15
16 #include <sys/cdefs.h>
17 #if defined(LIBM_SCCS) && !defined(lint)
18 __RCSID("$NetBSD: w_coshf.c,v 1.7 2007/08/20 16:01:40 drochner Exp $");
19 #endif
20
21 /*
22 * wrapper coshf(x)
23 */
24
25 #include "namespace.h"
26 #include "math.h"
27 #include "math_private.h"
28
29 #ifdef __weak_alias
__weak_alias(coshf,_coshf)30 __weak_alias(coshf, _coshf)
31 #endif
32
33 float
34 coshf(float x) /* wrapper coshf */
35 {
36 #ifdef _IEEE_LIBM
37 return __ieee754_coshf(x);
38 #else
39 float z;
40 z = __ieee754_coshf(x);
41 if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
42 if(fabsf(x)>(float)8.9415985107e+01) {
43 /* cosh overflow */
44 return (float)__kernel_standard((double)x,(double)x,105);
45 } else
46 return z;
47 #endif
48 }
49