diff options
Diffstat (limited to 'sysdeps/libm-ieee754/w_atan2f.c')
| -rw-r--r-- | sysdeps/libm-ieee754/w_atan2f.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/w_atan2f.c b/sysdeps/libm-ieee754/w_atan2f.c new file mode 100644 index 0000000000..4d67638572 --- /dev/null +++ b/sysdeps/libm-ieee754/w_atan2f.c @@ -0,0 +1,48 @@ +/* w_atan2f.c -- float version of w_atan2.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_atan2f.c,v 1.3 1995/05/10 20:48:42 jtc Exp $"; +#endif + +/* + * wrapper atan2f(y,x) + */ + +#include "math.h" +#include "math_private.h" + + +#ifdef __STDC__ + float __atan2f(float y, float x) /* wrapper atan2f */ +#else + float __atan2f(y,x) /* wrapper atan2 */ + float y,x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_atan2f(y,x); +#else + float z; + z = __ieee754_atan2f(y,x); + if(_LIB_VERSION == _IEEE_||__isnanf(x)||__isnanf(y)) return z; + if(x==(float)0.0&&y==(float)0.0) { + /* atan2f(+-0,+-0) */ + return (float)__kernel_standard((double)y,(double)x,103); + } else + return z; +#endif +} +weak_alias (__atan2f, atan2f) |