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 1.6 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