diff options
Diffstat (limited to 'math/w_powf.c')
| -rw-r--r-- | math/w_powf.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/math/w_powf.c b/math/w_powf.c deleted file mode 100644 index 32196fd89f..0000000000 --- a/math/w_powf.c +++ /dev/null @@ -1,77 +0,0 @@ -/* w_powf.c -- float version of w_pow.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_powf.c,v 1.3 1995/05/10 20:49:41 jtc Exp $"; -#endif - -/* - * wrapper powf(x,y) return x**y - */ - -#include "math.h" -#include "math_private.h" - - -#ifdef __STDC__ - float __powf(float x, float y) /* wrapper powf */ -#else - float __powf(x,y) /* wrapper powf */ - float x,y; -#endif -{ -#ifdef _IEEE_LIBM - return __ieee754_powf(x,y); -#else - float z; - z=__ieee754_powf(x,y); - if(_LIB_VERSION == _IEEE_|| __isnanf(y)) return z; - if(__isnanf(x)) { - if(y==(float)0.0) - /* powf(NaN,0.0) */ - return (float)__kernel_standard((double)x,(double)y,142); - else - return z; - } - if(x==(float)0.0) { - if(y==(float)0.0) - /* powf(0.0,0.0) */ - return (float)__kernel_standard((double)x,(double)y,120); - if(__finitef(y)&&y<(float)0.0) { - if (signbit (x) && signbit (z)) - /* powf(0.0,negative) */ - return (float)__kernel_standard((double)x,(double)y,123); - else - return (float)__kernel_standard((double)x,(double)y,143); - } - return z; - } - if(!__finitef(z)) { - if(__finitef(x)&&__finitef(y)) { - if(__isnanf(z)) - /* powf neg**non-int */ - return (float)__kernel_standard((double)x,(double)y,124); - else - /* powf overflow */ - return (float)__kernel_standard((double)x,(double)y,121); - } - } - if(z==(float)0.0&&__finitef(x)&&__finitef(y)) - /* powf underflow */ - return (float)__kernel_standard((double)x,(double)y,122); - return z; -#endif -} -weak_alias (__powf, powf) |