1/* @(#)wr_lgamma.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#if defined(LIBM_SCCS) && !defined(lint) 14static char rcsid[] = "$NetBSD: w_lgamma_r.c,v 1.6 1995/05/10 20:49:27 jtc Exp $"; 15#endif 16 17/* 18 * wrapper double lgamma_r(double x, int *signgamp) 19 */ 20 21#include "math.h" 22#include "math_private.h" 23 24 25#ifdef __STDC__ 26 double __lgamma_r(double x, int *signgamp) /* wrapper lgamma_r */ 27#else 28 double __lgamma_r(x,signgamp) /* wrapper lgamma_r */ 29 double x; int *signgamp; 30#endif 31{ 32#ifdef _IEEE_LIBM 33 return __ieee754_lgamma_r(x,signgamp); 34#else 35 double y; 36 y = __ieee754_lgamma_r(x,signgamp); 37 if(_LIB_VERSION == _IEEE_) return y; 38 if(!__finite(y)&&__finite(x)) { 39 if(__floor(x)==x&&x<=0.0) 40 return __kernel_standard(x,x,15); /* lgamma pole */ 41 else 42 return __kernel_standard(x,x,14); /* lgamma overflow */ 43 } else 44 return y; 45#endif 46} 47weak_alias (__lgamma_r, lgamma_r) 48#ifdef NO_LONG_DOUBLE 49strong_alias (__lgamma_r, __lgammal_r) 50weak_alias (__lgamma_r, lgammal_r) 51#endif 52