about summary refs log blame commit diff
path: root/math/w_lgamma_r.c
blob: 9d00f58ab786cb14a4c3aa4536676ef0678fbb48 (plain) (tree)
1
2
3
4
5
6
7
8





                                                                    
                                                        


                                                       
  

                                                   
                 
                         
 
                                   
 







                                                                     
 
                                 


                                      
/* @(#)wr_lgamma.c 5.1 93/09/24 */
/*
 * ====================================================
 * 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.
 * ====================================================
 */

/*
 * wrapper double lgamma_r(double x, int *signgamp)
 */

#include <math.h>
#include <math_private.h>


double
__lgamma_r(double x, int *signgamp)
{
	double y = __ieee754_lgamma_r(x,signgamp);
	if(__builtin_expect(!__finite(y), 0)
	   && __finite(x) && _LIB_VERSION != _IEEE_)
		return __kernel_standard(x, x,
					 __floor(x)==x&&x<=0.0
					 ? 15 /* lgamma pole */
					 : 14); /* lgamma overflow */

	return y;
}
weak_alias (__lgamma_r, lgamma_r)
#ifdef NO_LONG_DOUBLE
strong_alias (__lgamma_r, __lgammal_r)
weak_alias (__lgamma_r, lgammal_r)
#endif