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/* @(#)wr_lgamma.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.
* ====================================================
*/
/*
* wrapper double lgamma_r(double x, int *signgamp)
*/
#include "fdlibm.h"
#include <errno.h>
#ifndef _DOUBLE_IS_32BITS
#ifdef __STDC__
double lgamma_r(double x, int *signgamp) /* wrapper lgamma_r */
#else
double lgamma_r(x,signgamp) /* wrapper lgamma_r */
double x; int *signgamp;
#endif
{
#ifdef _IEEE_LIBM
return __ieee754_lgamma_r(x,signgamp);
#else
double y;
y = __ieee754_lgamma_r(x,signgamp);
if(_LIB_VERSION == _IEEE_) return y;
if(!finite(y)&&finite(x)) {
if(floor(x)==x&&x<=0.0)
/* lgamma(-integer) */
errno = EDOM;
else
/* lgamma(finite) overflow */
errno = ERANGE;
}
return y;
#endif
}
#endif /* defined(_DOUBLE_IS_32BITS) */
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