1/* @(#)wr_gamma.c 5.1 93/09/24 */ 2/* 3 * ==================================================== 4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 5 * 6 * Developed at SunPro, a Sun Microsystems, Inc. business. 7 * Permission to use, copy, modify, and distribute this 8 * software is freely granted, provided that this notice 9 * is preserved. 10 * ==================================================== 11 */ 12 13#include <sys/cdefs.h> 14#if defined(LIBM_SCCS) && !defined(lint) 15__RCSID("$NetBSD: w_gamma_r.c,v 1.10 2001/01/06 00:15:00 christos Exp $"); 16#endif 17 18/* 19 * wrapper double gamma_r(double x, int *signgamp) 20 */ 21 22#include "math.h" 23#include "math_private.h" 24 25double 26gamma_r(double x, int *signgamp) /* wrapper lgamma_r */ 27{ 28#ifdef _IEEE_LIBM 29 return __ieee754_lgamma_r(x,signgamp); 30#else 31 double y; 32 y = __ieee754_lgamma_r(x,signgamp); 33 if(_LIB_VERSION == _IEEE_) return y; 34 if(!finite(y)&&finite(x)) { 35 if(floor(x)==x&&x<=0.0) 36 return __kernel_standard(x,x,41); /* gamma pole */ 37 else 38 return __kernel_standard(x,x,40); /* gamma overflow */ 39 } else 40 return y; 41#endif 42} 43