| The Android Open Source Project | b07e1d9 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1 | |
| 2 | /* @(#)w_j0.c 1.3 95/01/18 */ |
| 3 | /* |
| 4 | * ==================================================== |
| 5 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
| 6 | * |
| 7 | * Developed at SunSoft, a Sun Microsystems, Inc. business. |
| 8 | * Permission to use, copy, modify, and distribute this |
| 9 | * software is freely granted, provided that this notice |
| 10 | * is preserved. |
| 11 | * ==================================================== |
| 12 | */ |
| 13 | |
| 14 | /* |
| 15 | * wrapper ieee_j0(double x), ieee_y0(double x) |
| 16 | */ |
| 17 | |
| 18 | #include "fdlibm.h" |
| 19 | |
| 20 | #ifdef __STDC__ |
| 21 | double ieee_j0(double x) /* wrapper j0 */ |
| 22 | #else |
| 23 | double ieee_j0(x) /* wrapper j0 */ |
| 24 | double x; |
| 25 | #endif |
| 26 | { |
| 27 | #ifdef _IEEE_LIBM |
| 28 | return __ieee754_j0(x); |
| 29 | #else |
| 30 | double z = __ieee754_j0(x); |
| 31 | if(_LIB_VERSION == _IEEE_ || ieee_isnan(x)) return z; |
| 32 | if(ieee_fabs(x)>X_TLOSS) { |
| 33 | return __kernel_standard(x,x,34); /* ieee_j0(|x|>X_TLOSS) */ |
| 34 | } else |
| 35 | return z; |
| 36 | #endif |
| 37 | } |
| 38 | |
| 39 | #ifdef __STDC__ |
| 40 | double ieee_y0(double x) /* wrapper y0 */ |
| 41 | #else |
| 42 | double ieee_y0(x) /* wrapper y0 */ |
| 43 | double x; |
| 44 | #endif |
| 45 | { |
| 46 | #ifdef _IEEE_LIBM |
| 47 | return __ieee754_y0(x); |
| 48 | #else |
| 49 | double z; |
| 50 | z = __ieee754_y0(x); |
| 51 | if(_LIB_VERSION == _IEEE_ || ieee_isnan(x) ) return z; |
| 52 | if(x <= 0.0){ |
| 53 | if(x==0.0) |
| 54 | /* d= -one/(x-x); */ |
| 55 | return __kernel_standard(x,x,8); |
| 56 | else |
| 57 | /* d = zero/(x-x); */ |
| 58 | return __kernel_standard(x,x,9); |
| 59 | } |
| 60 | if(x>X_TLOSS) { |
| 61 | return __kernel_standard(x,x,35); /* ieee_y0(x>X_TLOSS) */ |
| 62 | } else |
| 63 | return z; |
| 64 | #endif |
| 65 | } |