1/* @(#)w_j1.c 5.1 93/09/24 */ 2/* 3 * ==================================================== 4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 5 * 6 * Developed at SunPro, a Sun Microsystems, Inc. business. 7 * Permission to use, copy, modify, and distribute this 8 * software is freely granted, provided that this notice 9 * is preserved. 10 * ==================================================== 11 */ 12 13#include <sys/cdefs.h> 14#if defined(LIBM_SCCS) && !defined(lint) 15__RCSID("$NetBSD: w_j1.c,v 1.8 1999/07/02 15:37:44 simonb Exp $"); 16#endif 17 18/* 19 * wrapper of j1,y1 20 */ 21 22#include "math.h" 23#include "math_private.h" 24 25double 26j1(double x) /* wrapper j1 */ 27{ 28#ifdef _IEEE_LIBM 29 return __ieee754_j1(x); 30#else 31 double z; 32 z = __ieee754_j1(x); 33 if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; 34 if(fabs(x)>X_TLOSS) { 35 return __kernel_standard(x,x,36); /* j1(|x|>X_TLOSS) */ 36 } else 37 return z; 38#endif 39} 40 41double 42y1(double x) /* wrapper y1 */ 43{ 44#ifdef _IEEE_LIBM 45 return __ieee754_y1(x); 46#else 47 double z; 48 z = __ieee754_y1(x); 49 if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; 50 if(x <= 0.0){ 51 if(x==0.0) 52 /* d= -one/(x-x); */ 53 return __kernel_standard(x,x,10); 54 else 55 /* d = zero/(x-x); */ 56 return __kernel_standard(x,x,11); 57 } 58 if(x>X_TLOSS) { 59 return __kernel_standard(x,x,37); /* y1(x>X_TLOSS) */ 60 } else 61 return z; 62#endif 63} 64