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#include <math-svid-compat.h>
19#include <libm-alias-float.h>
20
21#include <lgamma-compat.h>
22
23#if BUILD_LGAMMA
24float
25LGFUNC (__lgammaf) (float x)
26{
27 float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x);
28 if(__builtin_expect(!isfinite(y), 0)
29 && isfinite(x) && _LIB_VERSION != _IEEE_)
30 return __kernel_standard_f(x, x,
31 floorf(x)==x&&x<=0.0f
32 ? 115 /* lgamma pole */
33 : 114); /* lgamma overflow */
34
35 return y;
36}
37# if USE_AS_COMPAT
38compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
39# else
40versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER);
41libm_alias_float_other (__lgamma, lgamma)
42# endif
43# if GAMMA_ALIAS
44strong_alias (LGFUNC (__lgammaf), __gammaf)
45weak_alias (__gammaf, gammaf)
46# endif
47#endif
48