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      1 /* w_j1f.c -- float version of w_j1.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_j1f.c,v 1.6 2002/05/26 22:02:01 wiz Exp $");
     19 #endif
     20 
     21 /*
     22  * wrapper of j1f,y1f
     23  */
     24 
     25 #include "math.h"
     26 #include "math_private.h"
     27 
     28 float
     29 j1f(float x)		/* wrapper j1f */
     30 {
     31 #ifdef _IEEE_LIBM
     32 	return __ieee754_j1f(x);
     33 #else
     34 	float z;
     35 	z = __ieee754_j1f(x);
     36 	if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
     37 	if(fabsf(x)>(float)X_TLOSS) {
     38 		/* j1(|x|>X_TLOSS) */
     39 	        return (float)__kernel_standard((double)x,(double)x,136);
     40 	} else
     41 	    return z;
     42 #endif
     43 }
     44 
     45 float
     46 y1f(float x)		/* wrapper y1f */
     47 {
     48 #ifdef _IEEE_LIBM
     49 	return __ieee754_y1f(x);
     50 #else
     51 	float z;
     52 	z = __ieee754_y1f(x);
     53 	if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
     54         if(x <= (float)0.0){
     55                 if(x==(float)0.0)
     56                     /* d= -one/(x-x); */
     57                     return (float)__kernel_standard((double)x,(double)x,110);
     58                 else
     59                     /* d = zero/(x-x); */
     60                     return (float)__kernel_standard((double)x,(double)x,111);
     61         }
     62 	if(x>(float)X_TLOSS) {
     63 		/* y1(x>X_TLOSS) */
     64 	        return (float)__kernel_standard((double)x,(double)x,137);
     65 	} else
     66 	    return z;
     67 #endif
     68 }
     69