vx32

Local 9vx git repository for patches.
git clone git://r-36.net/vx32
Log | Files | Refs

w_gamma_r.c (1151B)

      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 #ifndef lint
     14 static char rcsid[] = "$FreeBSD: src/lib/msun/src/w_gamma_r.c,v 1.7 2002/05/28 18:15:04 alfred Exp $";
     15 #endif
     16 
     17 /*
     18  * wrapper double gamma_r(double x, int *signgamp)
     19  */
     20 
     21 #include "math.h"
     22 #include "math_private.h"
     23 
     24 
     25 double
     26 gamma_r(double x, int *signgamp) /* wrapper lgamma_r */
     27 {
     28 #ifdef _IEEE_LIBM
     29 	return __ieee754_gamma_r(x,signgamp);
     30 #else
     31         double y;
     32         y = __ieee754_gamma_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 }