mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-14 17:59:28 +08:00
2eafcc78df
The y0, y1 and yn functions need separate conditions when x is zero as that returns ERANGE instead of EDOM. Also stop adjusting the return value from the __ieee754_y* functions as that is already correct and we were just breaking it. Signed-off-by: Keith Packard <keithp@keithp.com>
98 lines
1.7 KiB
C
98 lines
1.7 KiB
C
/* wf_j1.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.
|
|
* ====================================================
|
|
*/
|
|
|
|
/*
|
|
* wrapper of j1f,y1f
|
|
*/
|
|
|
|
#include "fdlibm.h"
|
|
#include <errno.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_ || isnan(x) ) return z;
|
|
if(fabsf(x)>(float)X_TLOSS) {
|
|
/* j1f(|x|>X_TLOSS) */
|
|
errno = ERANGE;
|
|
return 0.0f;
|
|
} else
|
|
return z;
|
|
#endif
|
|
}
|
|
|
|
#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_ || isnan(x) ) return z;
|
|
if(x < 0.0f){
|
|
/* y1f(x<0) = NaN */
|
|
errno = EDOM;
|
|
}
|
|
if (x == 0.0f){
|
|
/* y1f(n,0) = -inf */
|
|
errno = ERANGE;
|
|
}
|
|
if(x>(float)X_TLOSS) {
|
|
/* y1f(x>X_TLOSS) */
|
|
errno = ERANGE;
|
|
}
|
|
return z;
|
|
#endif
|
|
}
|
|
|
|
#ifdef _DOUBLE_IS_32BITS
|
|
|
|
#ifdef __STDC__
|
|
double j1(double x)
|
|
#else
|
|
double j1(x)
|
|
double x;
|
|
#endif
|
|
{
|
|
return (double) j1f((float) x);
|
|
}
|
|
|
|
#ifdef __STDC__
|
|
double y1(double x)
|
|
#else
|
|
double y1(x)
|
|
double x;
|
|
#endif
|
|
{
|
|
return (double) y1f((float) x);
|
|
}
|
|
|
|
#endif /* defined(_DOUBLE_IS_32BITS) */
|