diff options
Diffstat (limited to 'sysdeps/libm-ieee754/w_acos.c')
| -rw-r--r-- | sysdeps/libm-ieee754/w_acos.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/w_acos.c b/sysdeps/libm-ieee754/w_acos.c new file mode 100644 index 0000000000..d60d1c3202 --- /dev/null +++ b/sysdeps/libm-ieee754/w_acos.c @@ -0,0 +1,44 @@ +/* @(#)w_acos.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_acos.c,v 1.6 1995/05/10 20:48:26 jtc Exp $"; +#endif + +/* + * wrap_acos(x) + */ + +#include "math.h" +#include "math_private.h" + + +#ifdef __STDC__ + double __acos(double x) /* wrapper acos */ +#else + double __acos(x) /* wrapper acos */ + double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_acos(x); +#else + double z; + z = __ieee754_acos(x); + if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z; + if(fabs(x)>1.0) { + return __kernel_standard(x,x,1); /* acos(|x|>1) */ + } else + return z; +#endif +} +weak_alias (__acos, acos) |