1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
/*
* ====================================================
* 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 gamma_r(double x, int *signgamp)
*/
#include "math.h"
#include "math_private.h"
double gamma_r(double x, int *signgamp);
libm_hidden_proto(gamma_r)
double gamma_r(double x, int *signgamp) /* wrapper lgamma_r */
{
#ifdef _IEEE_LIBM
return __ieee754_lgamma_r(x,signgamp);
#else
double y;
y = __ieee754_lgamma_r(x,signgamp);
if(_LIB_VERSION == _IEEE_) return y;
if(!isfinite(y)&&isfinite(x)) {
if(floor(x)==x&&x<=0.0)
return __kernel_standard(x,x,41); /* gamma pole */
else
return __kernel_standard(x,x,40); /* gamma overflow */
} else
return y;
#endif
}
libm_hidden_def(gamma_r)
|
