1 /* $NetBSD: fenv.c,v 1.3 2017/03/22 23:11:08 chs Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: head/lib/msun/mips/fenv.c 226415 2011-10-16 05:37:56Z das $ 29 */ 30 #include <sys/cdefs.h> 31 __RCSID("$NetBSD: fenv.c,v 1.3 2017/03/22 23:11:08 chs Exp $"); 32 33 #include "namespace.h" 34 35 #define __fenv_static 36 #include <fenv.h> 37 38 #ifdef __weak_alias 39 __weak_alias(feclearexcept,_feclearexcept) 40 __weak_alias(fedisableexcept,_fedisableexcept) 41 __weak_alias(feenableexcept,_feenableexcept) 42 __weak_alias(fegetenv,_fegetenv) 43 __weak_alias(fegetexcept,_fegetexcept) 44 __weak_alias(fegetexceptflag,_fegetexceptflag) 45 __weak_alias(fegetround,_fegetround) 46 __weak_alias(feholdexcept,_feholdexcept) 47 __weak_alias(feraiseexcept,_feraiseexcept) 48 __weak_alias(fesetenv,_fesetenv) 49 __weak_alias(fesetexceptflag,_fesetexceptflag) 50 __weak_alias(fesetround,_fesetround) 51 __weak_alias(fetestexcept,_fetestexcept) 52 __weak_alias(feupdateenv,_feupdateenv) 53 #endif 54 55 #if defined(__GNUC_GNU_INLINE__) && !defined(__lint__) 56 #error "This file must be compiled with C99 'inline' semantics" 57 #endif 58 59 /* 60 * Hopefully the system ID byte is immutable, so it's valid to use 61 * this as a default environment. 62 */ 63 const fenv_t __fe_dfl_env = 0; 64 65 extern inline int feclearexcept(int __excepts); 66 extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts); 67 extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts); 68 extern inline int feraiseexcept(int __excepts); 69 extern inline int fetestexcept(int __excepts); 70 extern inline int fegetround(void); 71 extern inline int fesetround(int __round); 72 extern inline int fegetenv(fenv_t *__envp); 73 extern inline int feholdexcept(fenv_t *__envp); 74 extern inline int fesetenv(const fenv_t *__envp); 75 extern inline int feupdateenv(const fenv_t *__envp); 76 extern inline int feenableexcept(int __excepts); 77 extern inline int fedisableexcept(int __excepts); 78 extern inline int fegetexcept(void); 79