1 /* w_j0f.c -- float version of w_j0.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_j0f.c,v 1.4 1997/10/09 11:35:09 lukem 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 #ifdef __STDC__ 29 float j0f(float x) /* wrapper j0f */ 30 #else 31 float j0f(x) /* wrapper j0f */ 32 float x; 33 #endif 34 { 35 #ifdef _IEEE_LIBM 36 return __ieee754_j0f(x); 37 #else 38 float z = __ieee754_j0f(x); 39 if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z; 40 if(fabsf(x)>(float)X_TLOSS) { 41 /* j0f(|x|>X_TLOSS) */ 42 return (float)__kernel_standard((double)x,(double)x,134); 43 } else 44 return z; 45 #endif 46 } 47 48 #ifdef __STDC__ 49 float y0f(float x) /* wrapper y0f */ 50 #else 51 float y0f(x) /* wrapper y0f */ 52 float x; 53 #endif 54 { 55 #ifdef _IEEE_LIBM 56 return __ieee754_y0f(x); 57 #else 58 float z; 59 z = __ieee754_y0f(x); 60 if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z; 61 if(x <= (float)0.0){ 62 if(x==(float)0.0) 63 /* d= -one/(x-x); */ 64 return (float)__kernel_standard((double)x,(double)x,108); 65 else 66 /* d = zero/(x-x); */ 67 return (float)__kernel_standard((double)x,(double)x,109); 68 } 69 if(x>(float)X_TLOSS) { 70 /* y0(x>X_TLOSS) */ 71 return (float)__kernel_standard((double)x,(double)x,135); 72 } else 73 return z; 74 #endif 75 } 76