mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-21 02:10:05 +00:00
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
|
/* w_j1f.c -- float version of w_j1.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_j1f.c,v 1.3 1995/05/10 20:49:17 jtc Exp $";
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* wrapper of j1f,y1f
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "math.h"
|
||
|
|
#include "math_private.h"
|
||
|
|
|
||
|
|
#ifdef __STDC__
|
||
|
|
float __j1f(float x) /* wrapper j1f */
|
||
|
|
#else
|
||
|
|
float __j1f(x) /* wrapper j1f */
|
||
|
|
float x;
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
#ifdef _IEEE_LIBM
|
||
|
|
return __ieee754_j1f(x);
|
||
|
|
#else
|
||
|
|
float z;
|
||
|
|
z = __ieee754_j1f(x);
|
||
|
|
if(_LIB_VERSION == _IEEE_ || __isnanf(x) ) return z;
|
||
|
|
if(fabsf(x)>(float)X_TLOSS) {
|
||
|
|
/* j1(|x|>X_TLOSS) */
|
||
|
|
return (float)__kernel_standard((double)x,(double)x,136);
|
||
|
|
} else
|
||
|
|
return z;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
weak_alias (__j1f, j1f)
|
||
|
|
|
||
|
|
#ifdef __STDC__
|
||
|
|
float __y1f(float x) /* wrapper y1f */
|
||
|
|
#else
|
||
|
|
float __y1f(x) /* wrapper y1f */
|
||
|
|
float x;
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
#ifdef _IEEE_LIBM
|
||
|
|
return __ieee754_y1f(x);
|
||
|
|
#else
|
||
|
|
float z;
|
||
|
|
z = __ieee754_y1f(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)x,(double)x,110);
|
||
|
|
else
|
||
|
|
/* d = zero/(x-x); */
|
||
|
|
return (float)__kernel_standard((double)x,(double)x,111);
|
||
|
|
}
|
||
|
|
if(x>(float)X_TLOSS) {
|
||
|
|
/* y1(x>X_TLOSS) */
|
||
|
|
return (float)__kernel_standard((double)x,(double)x,137);
|
||
|
|
} else
|
||
|
|
return z;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
weak_alias (__y1f, y1f)
|