1 /* w_j1f.c -- float version of w_j1.c. 2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@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 1.5 1999/07/02 15:37:44 simonb Exp $"); 19 #endif 20 21 /* 22 * wrapper of j1f,y1f 23 */ 24 25 #include "math.h" 26 #include "math_private.h" 27 28 #ifdef __STDC__ 29 float j1f(float x) /* wrapper j1f */ 30 #else 31 float j1f(x) /* wrapper j1f */ 32 float x; 33 #endif 34 { 35 #ifdef _IEEE_LIBM 36 return __ieee754_j1f(x); 37 #else 38 float z; 39 z = __ieee754_j1f(x); 40 if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z; 41 if(fabsf(x)>(float)X_TLOSS) { 42 /* j1(|x|>X_TLOSS) */ 43 return (float)__kernel_standard((double)x,(double)x,136); 44 } else 45 return z; 46 #endif 47 } 48 49 #ifdef __STDC__ 50 float y1f(float x) /* wrapper y1f */ 51 #else 52 float y1f(x) /* wrapper y1f */ 53 float x; 54 #endif 55 { 56 #ifdef _IEEE_LIBM 57 return __ieee754_y1f(x); 58 #else 59 float z; 60 z = __ieee754_y1f(x); 61 if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z; 62 if(x <= (float)0.0){ 63 if(x==(float)0.0) 64 /* d= -one/(x-x); */ 65 return (float)__kernel_standard((double)x,(double)x,110); 66 else 67 /* d = zero/(x-x); */ 68 return (float)__kernel_standard((double)x,(double)x,111); 69 } 70 if(x>(float)X_TLOSS) { 71 /* y1(x>X_TLOSS) */ 72 return (float)__kernel_standard((double)x,(double)x,137); 73 } else 74 return z; 75 #endif 76 } 77