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 #include <sys/cdefs.h> 14 #if defined(LIBM_SCCS) && !defined(lint) 15 __RCSID("$NetBSD: w_lgamma_r.c,v 1.7 1997/10/09 11:35:27 lukem Exp $"); 16 #endif 17 18 /* 19 * wrapper double lgamma_r(double x, int *signgamp) 20 */ 21 22 #include "math.h" 23 #include "math_private.h" 24 25 double lgamma_r __P((double, int *)); 26 27 28 #ifdef __STDC__ 29 double lgamma_r(double x, int *signgamp) /* wrapper lgamma_r */ 30 #else 31 double lgamma_r(x,signgamp) /* wrapper lgamma_r */ 32 double x; int *signgamp; 33 #endif 34 { 35 #ifdef _IEEE_LIBM 36 return __ieee754_lgamma_r(x,signgamp); 37 #else 38 double y; 39 y = __ieee754_lgamma_r(x,signgamp); 40 if(_LIB_VERSION == _IEEE_) return y; 41 if(!finite(y)&&finite(x)) { 42 if(floor(x)==x&&x<=0.0) 43 return __kernel_standard(x,x,15); /* lgamma pole */ 44 else 45 return __kernel_standard(x,x,14); /* lgamma overflow */ 46 } else 47 return y; 48 #endif 49 } 50