1/* w_lgammaf_r.c -- float version of w_lgamma_r.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
4
5/*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8 *
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
12 * is preserved.
13 * ====================================================
14 */
15
16/*
17 * wrapper float lgammaf_r(float x, int *signgamp)
18 */
19
20#include <math.h>
21#include <math_private.h>
22#include <math-svid-compat.h>
23#include <libm-alias-float.h>
24
25
26#if LIBM_SVID_COMPAT
27float
28__lgammaf_r(float x, int *signgamp)
29{
30 float y = __ieee754_lgammaf_r(x,signgamp);
31 if(__builtin_expect(!isfinite(y), 0)
32 && isfinite(x) && _LIB_VERSION != _IEEE_)
33 return __kernel_standard_f(x, x,
34 floorf(x)==x&&x<=0.0f
35 ? 115 /* lgamma pole */
36 : 114); /* lgamma overflow */
37
38 return y;
39}
40libm_alias_float_r (__lgamma, lgamma, _r)
41#endif
42