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 #if defined(LIBM_SCCS) && !defined(lint) 17 static char rcsid[] = "$Id: w_j0f.c,v 1.2 1994/09/22 16:45:45 jtc Exp $"; 18 #endif 19 20 /* 21 * wrapper j0f(float x), y0f(float x) 22 */ 23 24 #include "math.h" 25 #include "math_private.h" 26 27 #ifdef __STDC__ 28 float j0f(float x) /* wrapper j0f */ 29 #else 30 float j0f(x) /* wrapper j0f */ 31 float x; 32 #endif 33 { 34 #ifdef _IEEE_LIBM 35 return __ieee754_j0f(x); 36 #else 37 float z = __ieee754_j0f(x); 38 if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z; 39 if(fabsf(x)>(float)X_TLOSS) { 40 /* j0f(|x|>X_TLOSS) */ 41 return (float)__kernel_standard((double)x,(double)x,134); 42 } else 43 return z; 44 #endif 45 } 46 47 #ifdef __STDC__ 48 float y0f(float x) /* wrapper y0f */ 49 #else 50 float y0f(x) /* wrapper y0f */ 51 float x; 52 #endif 53 { 54 #ifdef _IEEE_LIBM 55 return __ieee754_y0f(x); 56 #else 57 float z; 58 z = __ieee754_y0f(x); 59 if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z; 60 if(x <= (float)0.0){ 61 if(x==(float)0.0) 62 /* d= -one/(x-x); */ 63 return (float)__kernel_standard((double)x,(double)x,108); 64 else 65 /* d = zero/(x-x); */ 66 return (float)__kernel_standard((double)x,(double)x,109); 67 } 68 if(x>(float)X_TLOSS) { 69 /* y0(x>X_TLOSS) */ 70 return (float)__kernel_standard((double)x,(double)x,135); 71 } else 72 return z; 73 #endif 74 } 75