1 /* w_lgammaf.c -- float version of w_lgamma.c.
2 */
3
4 /*
5 * ====================================================
6 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
7 *
8 * Developed at SunPro, a Sun Microsystems, Inc. business.
9 * Permission to use, copy, modify, and distribute this
10 * software is freely granted, provided that this notice
11 * is preserved.
12 * ====================================================
13 */
14
15 #include <math.h>
16 #include <math_private.h>
17 #include <math-svid-compat.h>
18 #include <libm-alias-float.h>
19
20 #include <lgamma-compat.h>
21
22 #if BUILD_LGAMMA
23 float
LGFUNC(__lgammaf)24 LGFUNC (__lgammaf) (float x)
25 {
26 float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x);
27 if(__builtin_expect(!isfinite(y), 0)
28 && isfinite(x) && _LIB_VERSION != _IEEE_)
29 return __kernel_standard_f(x, x,
30 floorf(x)==x&&x<=0.0f
31 ? 115 /* lgamma pole */
32 : 114); /* lgamma overflow */
33
34 return y;
35 }
36 # if USE_AS_COMPAT
37 compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
38 # else
39 versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER);
40 libm_alias_float_other (__lgamma, lgamma)
41 # endif
42 # if GAMMA_ALIAS
43 strong_alias (LGFUNC (__lgammaf), __gammaf)
44 weak_alias (__gammaf, gammaf)
45 # endif
46 #endif
47