1 /* $NetBSD: s_expl.c,v 1.2 2024/01/23 15:45:07 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_expl.c,v 1.2 2024/01/23 15:45:07 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(expl, _expl) 43 __weak_alias(expm1l, _expm1l) 44 #endif 45 46 #ifdef __HAVE_LONG_DOUBLE 47 48 #if LDBL_MANT_DIG == 64 49 #include "../ld80/s_expl.c" 50 #elif LDBL_MANT_DIG == 113 51 #include "../ld128/s_expl.c" 52 #else 53 #error "Unsupported long double format" 54 #endif 55 56 #else 57 58 long double 59 expl(long double d) 60 { 61 return exp(d); 62 } 63 64 long double 65 expm1l(long double d) 66 { 67 return expm1(d); 68 } 69 70 #endif 71