1176388Sdas/*-
2176388Sdas * Copyright (c) 2008 David Schultz <das@FreeBSD.ORG>
3176388Sdas * All rights reserved.
4176388Sdas *
5176388Sdas * Redistribution and use in source and binary forms, with or without
6176388Sdas * modification, are permitted provided that the following conditions
7176388Sdas * are met:
8176388Sdas * 1. Redistributions of source code must retain the above copyright
9176388Sdas *    notice, this list of conditions and the following disclaimer.
10176388Sdas * 2. Redistributions in binary form must reproduce the above copyright
11176388Sdas *    notice, this list of conditions and the following disclaimer in the
12176388Sdas *    documentation and/or other materials provided with the distribution.
13176388Sdas *
14176388Sdas * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15176388Sdas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16176388Sdas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17176388Sdas * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18176388Sdas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19176388Sdas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20176388Sdas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21176388Sdas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22176388Sdas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23176388Sdas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24176388Sdas * SUCH DAMAGE.
25176388Sdas */
26176388Sdas
27176388Sdas#include <sys/cdefs.h>
28176388Sdas__FBSDID("$FreeBSD$");
29176388Sdas
30176388Sdas#include <math.h>
31176388Sdas
32176388Sdas/*
33176388Sdas * We simply call tgamma() rather than bloating the math library with
34176388Sdas * a float-optimized version of it. The reason is that tgammaf() is
35176388Sdas * essentially useless, since the function is superexponential and
36176388Sdas * floats have very limited range.
37176388Sdas */
38176388Sdasfloat
39176388Sdastgammaf(float x)
40176388Sdas{
41176388Sdas
42176388Sdas	return (tgamma(x));
43176388Sdas}
44