1/* w_lgammaf.c -- float version of w_lgamma.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#include <math.h>
17#include <math_private.h>
18
19#include <lgamma-compat.h>
20
21#if BUILD_LGAMMA
22float
23LGFUNC (__lgammaf) (float x)
24{
25 float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x);
26 if(__builtin_expect(!isfinite(y), 0)
27 && isfinite(x) && _LIB_VERSION != _IEEE_)
28 return __kernel_standard_f(x, x,
29 __floorf(x)==x&&x<=0.0f
30 ? 115 /* lgamma pole */
31 : 114); /* lgamma overflow */
32
33 return y;
34}
35# if USE_AS_COMPAT
36compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
37# else
38versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER);
39# endif
40# if GAMMA_ALIAS
41strong_alias (LGFUNC (__lgammaf), __gammaf)
42weak_alias (__gammaf, gammaf)
43# endif
44#endif
45