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 * Optimizations bu Ulrich Drepper <drepper@gmail.com>, 2011.
5 */
6
7 /*
8 * ====================================================
9 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
10 *
11 * Developed at SunPro, a Sun Microsystems, Inc. business.
12 * Permission to use, copy, modify, and distribute this
13 * software is freely granted, provided that this notice
14 * is preserved.
15 * ====================================================
16 */
17
18 /*
19 * wrapper coshl(x)
20 */
21
22 #include <math.h>
23 #include "math_private.h"
24
25 #if !defined __NO_LONG_DOUBLE_MATH
26 long double
coshl(long double x)27 coshl (long double x)
28 {
29 #if defined(__UCLIBC_HAS_FENV__)
30 long double z = (long double) __ieee754_cosh ((double) x);
31 if (__builtin_expect (!isfinite (z), 0) && isfinite (x)
32 && _LIB_VERSION != _IEEE_)
33 return __kernel_standard_l (x, x, 205); /* cosh overflow */
34
35 return z;
36 #else
37 return (long double) __ieee754_cosh ((double) x);
38 #endif /* __UCLIBC_HAS_FENV__ */
39 }
40 #endif /* __NO_LONG_DOUBLE_MATH */
41