diff options
| author | Sergey Cherkashin <4erkashin@list.ru> | 2017-10-03 15:26:34 +0300 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2017-11-03 20:23:10 +0100 |
| commit | ea38f4d89c9698895b1cf53a5946429dc1d8bbaa (patch) | |
| tree | e05828ca1fedf55f104b837bc9c44215c2978e99 /libm/w_coshl.c | |
| parent | 68de9946e914d8c30dcc6667a059ea59e5b74cac (diff) | |
math: add exception handling functionality
According to standards SVID and SYSV.
Modified lgamma calling in case when 'signgam' variable should not be used.
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>
Diffstat (limited to 'libm/w_coshl.c')
| -rw-r--r-- | libm/w_coshl.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libm/w_coshl.c b/libm/w_coshl.c new file mode 100644 index 000000000..5e4814298 --- /dev/null +++ b/libm/w_coshl.c @@ -0,0 +1,40 @@ +/* w_acoshl.c -- long double version of w_acosh.c. + * Conversion to long double by Ulrich Drepper, + * Cygnus Support, drepper@cygnus.com. + * Optimizations bu Ulrich Drepper <drepper@gmail.com>, 2011. + */ + +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunPro, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +/* + * wrapper coshl(x) + */ + +#include <math.h> +#include "math_private.h" + +#if !defined __NO_LONG_DOUBLE_MATH +long double +coshl (long double x) +{ +#if __UCLIBC_HAS_FENV__ + long double z = (long double) __ieee754_cosh ((double) x); + if (__builtin_expect (!isfinite (z), 0) && isfinite (x) + && _LIB_VERSION != _IEEE_) + return __kernel_standard_l (x, x, 205); /* cosh overflow */ + + return z; +#else + return (long double) __ieee754_cosh ((double) x); +#endif /* __UCLIBC_HAS_FENV__ */ +} +#endif /* __NO_LONG_DOUBLE_MATH */ |