1/* $NetBSD: fenv.c,v 1.3 2019/10/26 17:57:20 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2015 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__RCSID("$NetBSD: fenv.c,v 1.3 2019/10/26 17:57:20 christos Exp $"); 33 34#include "namespace.h" 35 36#define __fenv_static 37#include <fenv.h> 38 39#ifdef __weak_alias 40__weak_alias(feclearexcept,_feclearexcept) 41__weak_alias(fegetenv,_fegetenv) 42__weak_alias(fegetexceptflag,_fegetexceptflag) 43__weak_alias(fegetround,_fegetround) 44__weak_alias(feholdexcept,_feholdexcept) 45__weak_alias(feraiseexcept,_feraiseexcept) 46__weak_alias(fesetenv,_fesetenv) 47__weak_alias(fesetexceptflag,_fesetexceptflag) 48__weak_alias(fesetround,_fesetround) 49__weak_alias(fetestexcept,_fetestexcept) 50__weak_alias(feupdateenv,_feupdateenv) 51 52__weak_alias(fedisableexcept,_fedisableexcept) 53__weak_alias(feenableexcept,_feenableexcept) 54__weak_alias(fegetexcept,_fegetexcept) 55#endif 56 57#if defined(__GNUC_GNU_INLINE__) && !defined(__lint__) 58#error "This file must be compiled with C99 'inline' semantics" 59#endif 60 61extern inline int feclearexcept(int __excepts); 62extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts); 63extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts); 64extern inline int feraiseexcept(int __excepts); 65extern inline int fetestexcept(int __excepts); 66extern inline int fegetround(void); 67extern inline int fesetround(int __round); 68extern inline int fegetenv(fenv_t *__envp); 69extern inline int feholdexcept(fenv_t *__envp); 70extern inline int fesetenv(const fenv_t *__envp); 71extern inline int feupdateenv(const fenv_t *__envp); 72 73extern inline int feenableexcept(int __excepts); 74extern inline int fedisableexcept(int __excepts); 75extern inline int fegetexcept(void); 76