1 /* w_lgammaf_r.c -- float version of w_lgamma_r.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 /*
16 * wrapper float lgammaf_r(float x, int *signgamp)
17 */
18
19 #include <math.h>
20 #include <math_private.h>
21 #include <math-svid-compat.h>
22 #include <libm-alias-float.h>
23
24
25 #if LIBM_SVID_COMPAT
26 float
__lgammaf_r(float x,int * signgamp)27 __lgammaf_r(float x, int *signgamp)
28 {
29 float y = __ieee754_lgammaf_r(x,signgamp);
30 if(__builtin_expect(!isfinite(y), 0)
31 && isfinite(x) && _LIB_VERSION != _IEEE_)
32 return __kernel_standard_f(x, x,
33 floorf(x)==x&&x<=0.0f
34 ? 115 /* lgamma pole */
35 : 114); /* lgamma overflow */
36
37 return y;
38 }
39 libm_alias_float_r (__lgamma, lgamma, _r)
40 #endif
41