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Diffstat (limited to 'math/w_cosh.c')
| -rw-r--r-- | math/w_cosh.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/math/w_cosh.c b/math/w_cosh.c new file mode 100644 index 0000000000..033a034059 --- /dev/null +++ b/math/w_cosh.c @@ -0,0 +1,47 @@ +/* @(#)w_cosh.c 5.1 93/09/24 */ +/* + * ==================================================== + * 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. + * ==================================================== + */ + +#if defined(LIBM_SCCS) && !defined(lint) +static char rcsid[] = "$NetBSD: w_cosh.c,v 1.6 1995/05/10 20:48:47 jtc Exp $"; +#endif + +/* + * wrapper cosh(x) + */ + +#include <math.h> +#include "math_private.h" + +#ifdef __STDC__ + double __cosh(double x) /* wrapper cosh */ +#else + double __cosh(x) /* wrapper cosh */ + double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_cosh(x); +#else + double z; + z = __ieee754_cosh(x); + if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z; + if(!__finite(z) && __finite(x)) { + return __kernel_standard(x,x,5); /* cosh overflow */ + } else + return z; +#endif +} +weak_alias (__cosh, cosh) +#ifdef NO_LONG_DOUBLE +strong_alias (__cosh, __coshl) +weak_alias (__cosh, coshl) +#endif |