1 /* w_gammaf.c -- float version of w_gamma.c.
5 * ====================================================
6 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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
12 * ====================================================
17 #include <math_private.h>
18 #include <math-svid-compat.h>
19 #include <libm-alias-float.h>
26 float y = __ieee754_gammaf_r(x,&local_signgam);
28 if(__glibc_unlikely (!isfinite (y) || y == 0)
29 && (isfinite (x) || (isinf (x) && x < 0.0))
30 && _LIB_VERSION != _IEEE_) {
33 return __kernel_standard_f(x, x, 150);
34 else if(floorf(x)==x&&x<0.0f)
36 return __kernel_standard_f(x, x, 141);
38 /* tgammaf underflow */
41 /* tgammaf overflow */
42 return __kernel_standard_f(x, x, 140);
44 return local_signgam < 0 ? - y : y;
46 libm_alias_float (__tgamma, tgamma)