mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 12:11:10 +00:00
e275093526
* math/w_acos.c: Move to ... * sysdeps/generic/w_acos.c: ...here. New file. * math/w_acosf.c: Move to ... * sysdeps/generic/w_acosf.c: ...here. New file. * math/w_acosh.c: Move to ... * sysdeps/generic/w_acosh.c: ...here. New file. * math/w_acoshf.c: Move to ... * sysdeps/generic/w_acoshf.c: ...here. New file. * math/w_acoshl.c: Move to ... * sysdeps/generic/w_acoshl.c: ...here. New file. * math/w_acosl.c: Move to ... * sysdeps/generic/w_acosl.c: ...here. New file. * math/w_asin.c: Move to ... * sysdeps/generic/w_asin.c: ...here. New file. * math/w_asinf.c: Move to ... * sysdeps/generic/w_asinf.c: ...here. New file. * math/w_asinl.c: Move to ... * sysdeps/generic/w_asinl.c: ...here. New file. * math/w_atan2.c: Move to ... * sysdeps/generic/w_atan2.c: ...here. New file. * math/w_atan2f.c: Move to ... * sysdeps/generic/w_atan2f.c: ...here. New file. * math/w_atan2l.c: Move to ... * sysdeps/generic/w_atan2l.c: ...here. New file. * math/w_atanh.c: Move to ... * sysdeps/generic/w_atanh.c: ...here. New file. * math/w_atanhf.c: Move to ... * sysdeps/generic/w_atanhf.c: ...here. New file. * math/w_atanhl.c: Move to ... * sysdeps/generic/w_atanhl.c: ...here. New file. * math/w_cosh.c: Move to ... * sysdeps/generic/w_cosh.c: ...here. New file. * math/w_coshf.c: Move to ... * sysdeps/generic/w_coshf.c: ...here. New file. * math/w_coshl.c: Move to ... * sysdeps/generic/w_coshl.c: ...here. New file. * math/w_drem.c: Move to ... * sysdeps/generic/w_drem.c: ...here. New file. * math/w_dremf.c: Move to ... * sysdeps/generic/w_dremf.c: ...here. New file. * math/w_dreml.c: Move to ... * sysdeps/generic/w_dreml.c: ...here. New file. * math/w_exp10.c: Move to ... * sysdeps/generic/w_exp10.c: ...here. New file. * math/w_exp10f.c: Move to ... * sysdeps/generic/w_exp10f.c: ...here. New file. * math/w_exp10l.c: Move to ... * sysdeps/generic/w_exp10l.c: ...here. New file. * math/w_exp2.c: Move to ... * sysdeps/generic/w_exp2.c: ...here. New file. * math/w_exp2f.c: Move to ... * sysdeps/generic/w_exp2f.c: ...here. New file. * math/w_exp2l.c: Move to ... * sysdeps/generic/w_exp2l.c: ...here. New file. * math/w_fmod.c: Move to ... * sysdeps/generic/w_fmod.c: ...here. New file. * math/w_fmodf.c: Move to ... * sysdeps/generic/w_fmodf.c: ...here. New file. * math/w_fmodl.c: Move to ... * sysdeps/generic/w_fmodl.c: ...here. New file. * math/w_hypot.c: Move to ... * sysdeps/generic/w_hypot.c: ...here. New file. * math/w_hypotf.c: Move to ... * sysdeps/generic/w_hypotf.c: ...here. New file. * math/w_hypotl.c: Move to ... * sysdeps/generic/w_hypotl.c: ...here. New file. * math/w_j0.c: Move to ... * sysdeps/generic/w_j0.c: ...here. New file. * math/w_j0f.c: Move to ... * sysdeps/generic/w_j0f.c: ...here. New file. * math/w_j0l.c: Move to ... * sysdeps/generic/w_j0l.c: ...here. New file. * math/w_j1.c: Move to ... * sysdeps/generic/w_j1.c: ...here. New file. * math/w_j1f.c: Move to ... * sysdeps/generic/w_j1f.c: ...here. New file. * math/w_j1l.c: Move to ... * sysdeps/generic/w_j1l.c: ...here. New file. * math/w_jn.c: Move to ... * sysdeps/generic/w_jn.c: ...here. New file. * math/w_jnf.c: Move to ... * sysdeps/generic/w_jnf.c: ...here. New file. * math/w_jnl.c: Move to ... * sysdeps/generic/w_jnl.c: ...here. New file. * math/w_lgamma.c: Move to ... * sysdeps/generic/w_lgamma.c: ...here. New file. * math/w_lgammaf.c: Move to ... * sysdeps/generic/w_lgammaf.c: ...here. New file. * math/w_lgammaf_r.c: Move to ... * sysdeps/generic/w_lgammaf_r.c: ...here. New file. * math/w_lgammal.c: Move to ... * sysdeps/generic/w_lgammal.c: ...here. New file. * math/w_lgammal_r.c: Move to ... * sysdeps/generic/w_lgammal_r.c: ...here. New file. * math/w_lgamma_r.c: Move to ... * sysdeps/generic/w_lgamma_r.c: ...here. New file. * math/w_log10.c: Move to ... * sysdeps/generic/w_log10.c: ...here. New file. * math/w_log10f.c: Move to ... * sysdeps/generic/w_log10f.c: ...here. New file. * math/w_log10l.c: Move to ... * sysdeps/generic/w_log10l.c: ...here. New file. * math/w_log.c: Move to ... * sysdeps/generic/w_log.c: ...here. New file. * math/w_logf.c: Move to ... * sysdeps/generic/w_logf.c: ...here. New file. * math/w_logl.c: Move to ... * sysdeps/generic/w_logl.c: ...here. New file. * math/w_pow.c: Move to ... * sysdeps/generic/w_pow.c: ...here. New file. * math/w_powf.c: Move to ... * sysdeps/generic/w_powf.c: ...here. New file. * math/w_powl.c: Move to ... * sysdeps/generic/w_powl.c: ...here. New file. * math/w_remainder.c: Move to ... * sysdeps/generic/w_remainder.c: ...here. New file. * math/w_remainderf.c: Move to ... * sysdeps/generic/w_remainderf.c: ...here. New file. * math/w_remainderl.c: Move to ... * sysdeps/generic/w_remainderl.c: ...here. New file. * math/w_scalb.c: Move to ... * sysdeps/generic/w_scalb.c: ...here. New file. * math/w_scalbf.c: Move to ... * sysdeps/generic/w_scalbf.c: ...here. New file. * math/w_scalbl.c: Move to ... * sysdeps/generic/w_scalbl.c: ...here. New file. * math/w_sinh.c: Move to ... * sysdeps/generic/w_sinh.c: ...here. New file. * math/w_sinhf.c: Move to ... * sysdeps/generic/w_sinhf.c: ...here. New file. * math/w_sinhl.c: Move to ... * sysdeps/generic/w_sinhl.c: ...here. New file. * math/w_sqrtl.c: Move to ... * sysdeps/generic/w_sqrtl.c: ...here. New file. * math/w_tgamma.c: Move to ... * sysdeps/generic/w_tgamma.c: ...here. New file. * math/w_tgammaf.c: Move to ... * sysdeps/generic/w_tgammaf.c: ...here. New file. * math/w_tgammal.c: Move to ... * sysdeps/generic/w_tgammal.c: ...here. New file.
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/* @(#)w_jn.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[] = "$NetBSD: w_jn.c,v 1.6 1995/05/10 20:49:19 jtc Exp $";
|
|
#endif
|
|
|
|
/*
|
|
* wrapper jn(int n, double x), yn(int n, double x)
|
|
* floating point Bessel's function of the 1st and 2nd kind
|
|
* of order n
|
|
*
|
|
* Special cases:
|
|
* y0(0)=y1(0)=yn(n,0) = -inf with division by zero signal;
|
|
* y0(-ve)=y1(-ve)=yn(n,-ve) are NaN with invalid signal.
|
|
* Note 2. About jn(n,x), yn(n,x)
|
|
* For n=0, j0(x) is called,
|
|
* for n=1, j1(x) is called,
|
|
* for n<x, forward recursion us used starting
|
|
* from values of j0(x) and j1(x).
|
|
* for n>x, a continued fraction approximation to
|
|
* j(n,x)/j(n-1,x) is evaluated and then backward
|
|
* recursion is used starting from a supposed value
|
|
* for j(n,x). The resulting value of j(0,x) is
|
|
* compared with the actual value to correct the
|
|
* supposed value of j(n,x).
|
|
*
|
|
* yn(n,x) is similar in all respects, except
|
|
* that forward recursion is used for all
|
|
* values of n>1.
|
|
*
|
|
*/
|
|
|
|
#include "math.h"
|
|
#include "math_private.h"
|
|
|
|
#ifdef __STDC__
|
|
double jn(int n, double x) /* wrapper jn */
|
|
#else
|
|
double jn(n,x) /* wrapper jn */
|
|
double x; int n;
|
|
#endif
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_jn(n,x);
|
|
#else
|
|
double z;
|
|
z = __ieee754_jn(n,x);
|
|
if(_LIB_VERSION == _IEEE_ || __isnan(x) ) return z;
|
|
if(fabs(x)>X_TLOSS) {
|
|
return __kernel_standard((double)n,x,38); /* jn(|x|>X_TLOSS,n) */
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (jn, jnl)
|
|
#endif
|
|
|
|
|
|
#ifdef __STDC__
|
|
double yn(int n, double x) /* wrapper yn */
|
|
#else
|
|
double yn(n,x) /* wrapper yn */
|
|
double x; int n;
|
|
#endif
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_yn(n,x);
|
|
#else
|
|
double z;
|
|
z = __ieee754_yn(n,x);
|
|
if(_LIB_VERSION == _IEEE_ || __isnan(x) ) return z;
|
|
if(x <= 0.0){
|
|
if(x==0.0)
|
|
/* d= -one/(x-x); */
|
|
return __kernel_standard((double)n,x,12);
|
|
else
|
|
/* d = zero/(x-x); */
|
|
return __kernel_standard((double)n,x,13);
|
|
}
|
|
if(x>X_TLOSS) {
|
|
return __kernel_standard((double)n,x,39); /* yn(x>X_TLOSS,n) */
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (yn, ynl)
|
|
#endif
|