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File: [cvs.NetBSD.org] / src / lib / libm / src / w_lgammaf_r.c (download)

Revision 1.6, Sat Jan 6 00:15:00 2001 UTC (23 years, 3 months ago) by christos
Branch: MAIN
CVS Tags: netbsd-1-6-base, netbsd-1-6-RELEASE, netbsd-1-6-RC3, netbsd-1-6-RC2, netbsd-1-6-RC1, netbsd-1-6-PATCH002-RELEASE, netbsd-1-6-PATCH002-RC4, netbsd-1-6-PATCH002-RC3, netbsd-1-6-PATCH002-RC2, netbsd-1-6-PATCH002-RC1, netbsd-1-6-PATCH002, netbsd-1-6-PATCH001-RELEASE, netbsd-1-6-PATCH001-RC3, netbsd-1-6-PATCH001-RC2, netbsd-1-6-PATCH001-RC1, netbsd-1-6-PATCH001, netbsd-1-6
Changes since 1.5: +1 -4 lines 

remove redundant declarations; use __MATH_PRIVATE__ to override math.h
declarations.

/* w_lgammaf_r.c -- float version of w_lgamma_r.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.
 * ====================================================
 */

#include <sys/cdefs.h>
#if defined(LIBM_SCCS) && !defined(lint)
__RCSID("$NetBSD: w_lgammaf_r.c,v 1.6 2001/01/06 00:15:00 christos Exp $");
#endif

/*
 * wrapper float lgammaf_r(float x, int *signgamp)
 */

#include "math.h"
#include "math_private.h"

#ifdef __STDC__
	float lgammaf_r(float x, int *signgamp) /* wrapper lgammaf_r */
#else
	float lgammaf_r(x,signgamp)              /* wrapper lgammaf_r */
        float x; int *signgamp;
#endif
{
#ifdef _IEEE_LIBM
	return __ieee754_lgammaf_r(x,signgamp);
#else
        float y;
        y = __ieee754_lgammaf_r(x,signgamp);
        if(_LIB_VERSION == _IEEE_) return y;
        if(!finitef(y)&&finitef(x)) {
            if(floorf(x)==x&&x<=(float)0.0)
	        /* lgamma pole */
                return (float)__kernel_standard((double)x,(double)x,115);
            else
	        /* lgamma overflow */
	        return (float)__kernel_standard((double)x,(double)x,114);
        } else
            return y;
#endif
}