0ac5ae2335
libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
39 lines
971 B
C
39 lines
971 B
C
/* @(#)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
|