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Diffstat (limited to 'math/w_acoshf.c')
| -rw-r--r-- | math/w_acoshf.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/math/w_acoshf.c b/math/w_acoshf.c new file mode 100644 index 0000000..62f94b8 --- /dev/null +++ b/math/w_acoshf.c @@ -0,0 +1,48 @@ +/* w_acoshf.c -- float version of w_acosh.c. + * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. + */ + +/* + * ==================================================== + * 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_acoshf.c,v 1.3 1995/05/10 20:48:33 jtc Exp $"; +#endif + +/* + * wrapper acoshf(x) + */ + +#include <math.h> +#include "math_private.h" + +#ifdef __STDC__ + float __acoshf(float x) /* wrapper acoshf */ +#else + float __acoshf(x) /* wrapper acoshf */ + float x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_acoshf(x); +#else + float z; + z = __ieee754_acoshf(x); + if(_LIB_VERSION == _IEEE_ || __isnanf(x)) return z; + if(x<(float)1.0) { + /* acosh(x<1) */ + return (float)__kernel_standard((double)x,(double)x,129); + } else + return z; +#endif +} +weak_alias (__acoshf, acoshf) |