diff options
Diffstat (limited to 'math/w_acosh.c')
| -rw-r--r-- | math/w_acosh.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/math/w_acosh.c b/math/w_acosh.c new file mode 100644 index 0000000..2b5d60f --- /dev/null +++ b/math/w_acosh.c @@ -0,0 +1,47 @@ +/* @(#)w_acosh.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_acosh.c,v 1.6 1995/05/10 20:48:31 jtc Exp $"; +#endif + +/* + * wrapper acosh(x) + */ + +#include "math.h" +#include "math_private.h" + +#ifdef __STDC__ + double __acosh(double x) /* wrapper acosh */ +#else + double __acosh(x) /* wrapper acosh */ + double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_acosh(x); +#else + double z; + z = __ieee754_acosh(x); + if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z; + if(x<1.0) { + return __kernel_standard(x,x,29); /* acosh(x<1) */ + } else + return z; +#endif +} +weak_alias (__acosh, acosh) +#ifdef NO_LONG_DOUBLE +strong_alias (__acosh, __acoshl) +weak_alias (__acosh, acoshl) +#endif |