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ee188d55 RM |
1 | /* w_acoshl.c -- long double version of w_acosh.c. |
2 | * Conversion to long double by Ulrich Drepper, | |
3 | * Cygnus Support, drepper@cygnus.com. | |
4 | */ | |
5 | ||
6 | /* | |
7 | * ==================================================== | |
8 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | |
9 | * | |
10 | * Developed at SunPro, a Sun Microsystems, Inc. business. | |
11 | * Permission to use, copy, modify, and distribute this | |
12 | * software is freely granted, provided that this notice | |
13 | * is preserved. | |
14 | * ==================================================== | |
15 | */ | |
16 | ||
17 | #if defined(LIBM_SCCS) && !defined(lint) | |
18 | static char rcsid[] = "$NetBSD: $"; | |
19 | #endif | |
20 | ||
21 | /* | |
22 | * wrapper coshl(x) | |
23 | */ | |
24 | ||
9d13fb24 | 25 | #include <math.h> |
ee188d55 RM |
26 | #include "math_private.h" |
27 | ||
28 | #ifdef __STDC__ | |
29 | long double __coshl(long double x) /* wrapper coshl */ | |
30 | #else | |
31 | long double __coshl(x) /* wrapper coshl */ | |
32 | long double x; | |
33 | #endif | |
34 | { | |
35 | #ifdef _IEEE_LIBM | |
36 | return __ieee754_coshl(x); | |
37 | #else | |
38 | long double z; | |
39 | z = __ieee754_coshl(x); | |
40 | if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z; | |
98363ded JJ |
41 | if(!__finitel(z) && __finitel(x)) { |
42 | return __kernel_standard(x,x,205); /* cosh overflow */ | |
ee188d55 RM |
43 | } else |
44 | return z; | |
45 | #endif | |
46 | } | |
47 | weak_alias (__coshl, coshl) |