0,0 → 1,71 |
/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
/* @(#)w_j1.c 5.1 93/09/24 */ |
/* |
* ==================================================== |
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
* |
* Developed at SunPro, a Sun Microsystems, Inc. business. |
* Permission to use, copy, modify, and distribute this |
* software is freely granted, provided that this notice |
* is preserved. |
* ==================================================== |
*/ |
|
#if defined(LIBM_SCCS) && !defined(lint) |
static char rcsid[] = "$Id: w_j1.c,v 1.4 1994/08/10 20:34:35 jtc Exp $"; |
#endif |
|
/* |
* wrapper of j1,y1 |
*/ |
|
#include "math.h" |
#include "math_private.h" |
|
#ifdef __STDC__ |
double j1(double x) /* wrapper j1 */ |
#else |
double j1(x) /* wrapper j1 */ |
double x; |
#endif |
{ |
#ifdef _IEEE_LIBM |
return __ieee754_j1(x); |
#else |
double z; |
z = __ieee754_j1(x); |
if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; |
if(fabs(x)>X_TLOSS) { |
return __kernel_standard(x,x,36); /* j1(|x|>X_TLOSS) */ |
} else |
return z; |
#endif |
} |
|
#ifdef __STDC__ |
double y1(double x) /* wrapper y1 */ |
#else |
double y1(x) /* wrapper y1 */ |
double x; |
#endif |
{ |
#ifdef _IEEE_LIBM |
return __ieee754_y1(x); |
#else |
double z; |
z = __ieee754_y1(x); |
if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z; |
if(x <= 0.0){ |
if(x==0.0) |
/* d= -one/(x-x); */ |
return __kernel_standard(x,x,10); |
else |
/* d = zero/(x-x); */ |
return __kernel_standard(x,x,11); |
} |
if(x>X_TLOSS) { |
return __kernel_standard(x,x,37); /* y1(x>X_TLOSS) */ |
} else |
return z; |
#endif |
} |