s_logl.c revision 1.4
1/* $NetBSD: s_logl.c,v 1.4 2024/02/24 15:16:53 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2023 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31#include <sys/cdefs.h> 32#if defined(LIBM_SCCS) && !defined(lint) 33__RCSID("$NetBSD: s_logl.c,v 1.4 2024/02/24 15:16:53 christos Exp $"); 34#endif 35 36#include "namespace.h" 37#include "math.h" 38#include <machine/float.h> 39#include <machine/ieee.h> 40 41#ifdef __weak_alias 42__weak_alias(logl, _logl) 43__weak_alias(log10l, _log10l) 44__weak_alias(log2l, _log2l) 45__weak_alias(log1pl, _log1pl) 46#endif 47 48#ifdef __HAVE_LONG_DOUBLE 49 50#if LDBL_MANT_DIG == 64 51#include "../ld80/s_logl.c" 52#elif LDBL_MANT_DIG == 113 53#include "../ld128/s_logl.c" 54#else 55#error "Unsupported long double format" 56#endif 57 58#else 59 60long double 61logl(long double l) 62{ 63 return log(l); 64} 65 66long double 67log10l(long double l) 68{ 69 return log10(l); 70} 71 72long double 73log2l(long double l) 74{ 75 return log2(l); 76} 77 78long double 79log1pl(long double l) 80{ 81 return log1p(l); 82} 83#endif 84