Home | History | Annotate | Line # | Download | only in src 
      1 /* w_j0f.c -- float version of w_j0.c.
      2  * Conversion to float by Ian Lance Taylor, Cygnus Support, ian (at) cygnus.com.
      3  */
      4 
      5 /*
      6  * ====================================================
      7  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
      8  *
      9  * Developed at SunPro, a Sun Microsystems, Inc. business.
     10  * Permission to use, copy, modify, and distribute this
     11  * software is freely granted, provided that this notice
     12  * is preserved.
     13  * ====================================================
     14  */
     15 
     16 #include <sys/cdefs.h>
     17 #if defined(LIBM_SCCS) && !defined(lint)
     18 __RCSID("$NetBSD: w_j0f.c,v 1.6 2002/05/26 22:02:01 wiz Exp $");
     19 #endif
     20 
     21 /*
     22  * wrapper j0f(float x), y0f(float x)
     23  */
     24 
     25 #include "math.h"
     26 #include "math_private.h"
     27 
     28 float
     29 j0f(float x)		/* wrapper j0f */
     30 {
     31 #ifdef _IEEE_LIBM
     32 	return __ieee754_j0f(x);
     33 #else
     34 	float z = __ieee754_j0f(x);
     35 	if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
     36 	if(fabsf(x)>(float)X_TLOSS) {
     37 		/* j0f(|x|>X_TLOSS) */
     38 	        return (float)__kernel_standard((double)x,(double)x,134);
     39 	} else
     40 	    return z;
     41 #endif
     42 }
     43 
     44 float
     45 y0f(float x)		/* wrapper y0f */
     46 {
     47 #ifdef _IEEE_LIBM
     48 	return __ieee754_y0f(x);
     49 #else
     50 	float z;
     51 	z = __ieee754_y0f(x);
     52 	if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
     53         if(x <= (float)0.0){
     54                 if(x==(float)0.0)
     55                     /* d= -one/(x-x); */
     56                     return (float)__kernel_standard((double)x,(double)x,108);
     57                 else
     58                     /* d = zero/(x-x); */
     59                     return (float)__kernel_standard((double)x,(double)x,109);
     60         }
     61 	if(x>(float)X_TLOSS) {
     62 		/* y0(x>X_TLOSS) */
     63 	        return (float)__kernel_standard((double)x,(double)x,135);
     64 	} else
     65 	    return z;
     66 #endif
     67 }
     68