s_tgammaf.c revision 302408
10SN/A/*- 2157SN/A * Copyright (c) 2008 David Schultz <das@FreeBSD.ORG> 30SN/A * All rights reserved. 40SN/A * 50SN/A * Redistribution and use in source and binary forms, with or without 60SN/A * modification, are permitted provided that the following conditions 7157SN/A * are met: 80SN/A * 1. Redistributions of source code must retain the above copyright 9157SN/A * notice, this list of conditions and the following disclaimer. 100SN/A * 2. Redistributions in binary form must reproduce the above copyright 110SN/A * notice, this list of conditions and the following disclaimer in the 120SN/A * documentation and/or other materials provided with the distribution. 130SN/A * 140SN/A * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 150SN/A * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 160SN/A * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 170SN/A * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 180SN/A * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 190SN/A * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 200SN/A * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21157SN/A * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22157SN/A * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23157SN/A * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 240SN/A * SUCH DAMAGE. 250SN/A */ 260SN/A 270SN/A#include <sys/cdefs.h> 280SN/A__FBSDID("$FreeBSD: stable/11/lib/msun/src/s_tgammaf.c 176388 2008-02-18 17:27:11Z das $"); 290SN/A 300SN/A#include <math.h> 310SN/A 320SN/A/* 330SN/A * We simply call tgamma() rather than bloating the math library with 340SN/A * a float-optimized version of it. The reason is that tgammaf() is 350SN/A * essentially useless, since the function is superexponential and 360SN/A * floats have very limited range. 370SN/A */ 380SN/Afloat 390SN/Atgammaf(float x) 400SN/A{ 410SN/A 420SN/A return (tgamma(x)); 430SN/A} 440SN/A