/* w_sqrtf.c -- float version of w_sqrt.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_sqrtf.c,v 1.3 1995/05/10 20:49:59 jtc Exp $"; #endif /* * wrapper sqrtf(x) */ #include "math.h" #include "math_private.h" float sqrtf(float x) /* wrapper sqrtf */ { #ifdef _IEEE_LIBM return __ieee754_sqrtf(x); #else float z; z = __ieee754_sqrtf(x); if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z; if(x<(float)0.0) { /* sqrtf(negative) */ return (float)__kernel_standard((double)x,(double)x,126); } else return z; #endif }