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-rw-r--r--math/w_jnl.c96
1 files changed, 0 insertions, 96 deletions
diff --git a/math/w_jnl.c b/math/w_jnl.c
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--- a/math/w_jnl.c
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-/* w_jnl.c -- long double version of w_jn.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
- */
-
-/*
- * ====================================================
- * 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: $";
-#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__
-	long double jnl(int n, long double x)	/* wrapper jnl */
-#else
-	long double jnl(n,x)			/* wrapper jnl */
-	long double x; int n;
-#endif
-{
-#ifdef _IEEE_LIBM
-	return __ieee754_jnl(n,x);
-#else
-	long double z;
-	z = __ieee754_jnl(n,x);
-	if(_LIB_VERSION == _IEEE_ || __isnanl(x) ) return z;
-	if(fabsl(x)>X_TLOSS) {
-	    return __kernel_standard((double)n,x,238); /* jn(|x|>X_TLOSS,n) */
-	} else
-	    return z;
-#endif
-}
-
-#ifdef __STDC__
-	long double ynl(int n, long double x)	/* wrapper ynl */
-#else
-	long double ynl(n,x)			/* wrapper ynl */
-	long double x; int n;
-#endif
-{
-#ifdef _IEEE_LIBM
-	return __ieee754_ynl(n,x);
-#else
-	long double z;
-	z = __ieee754_ynl(n,x);
-	if(_LIB_VERSION == _IEEE_ || __isnanl(x) ) return z;
-        if(x <= 0.0){
-                if(x==0.0)
-                    /* d= -one/(x-x); */
-                    return __kernel_standard((double)n,x,212);
-                else
-                    /* d = zero/(x-x); */
-                    return __kernel_standard((double)n,x,213);
-        }
-	if(x>X_TLOSS) {
-	    return __kernel_standard((double)n,x,239); /* yn(x>X_TLOSS,n) */
-	} else
-	    return z;
-#endif
-}