mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 19:00:09 +00:00
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/* w_jnf.c -- float version of w_jn.c.
|
|
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@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: w_jnf.c,v 1.3 1995/05/10 20:49:21 jtc Exp $";
|
|
#endif
|
|
|
|
#include "math.h"
|
|
#include "math_private.h"
|
|
|
|
#ifdef __STDC__
|
|
float jnf(int n, float x) /* wrapper jnf */
|
|
#else
|
|
float jnf(n,x) /* wrapper jnf */
|
|
float x; int n;
|
|
#endif
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_jnf(n,x);
|
|
#else
|
|
float z;
|
|
z = __ieee754_jnf(n,x);
|
|
if(_LIB_VERSION == _IEEE_ || __isnanf(x) ) return z;
|
|
if(fabsf(x)>(float)X_TLOSS) {
|
|
/* jn(|x|>X_TLOSS,n) */
|
|
return (float)__kernel_standard((double)n,(double)x,138);
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|
|
|
|
#ifdef __STDC__
|
|
float ynf(int n, float x) /* wrapper ynf */
|
|
#else
|
|
float ynf(n,x) /* wrapper ynf */
|
|
float x; int n;
|
|
#endif
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_ynf(n,x);
|
|
#else
|
|
float z;
|
|
z = __ieee754_ynf(n,x);
|
|
if(_LIB_VERSION == _IEEE_ || __isnanf(x) ) return z;
|
|
if(x <= (float)0.0){
|
|
if(x==(float)0.0)
|
|
/* d= -one/(x-x); */
|
|
return (float)__kernel_standard((double)n,(double)x,112);
|
|
else
|
|
/* d = zero/(x-x); */
|
|
return (float)__kernel_standard((double)n,(double)x,113);
|
|
}
|
|
if(x>(float)X_TLOSS) {
|
|
/* yn(x>X_TLOSS,n) */
|
|
return (float)__kernel_standard((double)n,(double)x,139);
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|