1 | /* Optimizations bu Ulrich Drepper <drepper@gmail.com>, 2011 */ |
2 | /* |
3 | * ==================================================== |
4 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
5 | * |
6 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
7 | * Permission to use, copy, modify, and distribute this |
8 | * software is freely granted, provided that this notice |
9 | * is preserved. |
10 | * ==================================================== |
11 | */ |
12 | |
13 | /* |
14 | * wrapper cosh(x) |
15 | */ |
16 | |
17 | #include <math.h> |
18 | #include <math_private.h> |
19 | |
20 | double |
21 | __cosh (double x) |
22 | { |
23 | double z = __ieee754_cosh (x); |
24 | if (__builtin_expect (!isfinite (z), 0) && isfinite (x) |
25 | && _LIB_VERSION != _IEEE_) |
26 | return __kernel_standard (x, x, 5); /* cosh overflow */ |
27 | |
28 | return z; |
29 | } |
30 | weak_alias (__cosh, cosh) |
31 | #ifdef NO_LONG_DOUBLE |
32 | strong_alias (__cosh, __coshl) |
33 | weak_alias (__cosh, coshl) |
34 | #endif |
35 | |