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 1.6 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