dma: add required headers if they are not present
[dragonfly.git] / lib / libm / src / w_gamma.c
blobe9ab9bd99ac37c0f5aed4161f4df2739f7ab87a8
1 /* @(#)w_gamma.c 5.1 93/09/24 */
2 /*
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
9 * is preserved.
10 * ====================================================
12 * $NetBSD: w_gamma.c,v 1.11 2002/05/26 22:02:00 wiz Exp $
13 * $DragonFly: src/lib/libm/src/w_gamma.c,v 1.1 2005/07/26 21:15:20 joerg Exp $
16 /* double gamma(double x)
17 * Return the logarithm of the Gamma function of x.
19 * Method: call gamma_r
22 #include <math.h>
23 #include "math_private.h"
25 double
26 gamma(double x)
28 return lgamma_r(x,&signgam);