111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* $OpenBSD: fenv.h,v 1.2 2011/05/25 21:46:49 martynas Exp $ */ 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* $NetBSD: fenv.h,v 1.2.4.1 2011/02/08 16:18:55 bouyer Exp $ */ 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Copyright (c) 2010 The NetBSD Foundation, Inc. 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * All rights reserved. 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Redistribution and use in source and binary forms, with or without 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * modification, are permitted provided that the following conditions 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * are met: 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 1. Redistributions of source code must retain the above copyright 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer. 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 2. Redistributions in binary form must reproduce the above copyright 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * notice, this list of conditions and the following disclaimer in the 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * documentation and/or other materials provided with the distribution. 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * POSSIBILITY OF SUCH DAMAGE. 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef _FENV_H_ 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define _FENV_H_ 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <sys/cdefs.h> 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <machine/fenv.h> 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__BEGIN_DECLS 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#pragma GCC visibility push(default) 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint feclearexcept(int); 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fegetexceptflag(fexcept_t *, int); 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint feraiseexcept(int); 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fesetexceptflag(const fexcept_t *, int); 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fetestexcept(int); 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fegetround(void); 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fesetround(int); 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fegetenv(fenv_t *); 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint feholdexcept(fenv_t *); 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fesetenv(const fenv_t *); 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint feupdateenv(const fenv_t *); 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint feenableexcept(int); 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fedisableexcept(int); 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint fegetexcept(void); 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/* 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * The following constant represents the default floating-point environment 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * (that is, the one installed at program startup) and has type pointer to 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * const-qualified fenv_t. 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * It can be used as an argument to the functions that manage the floating-point 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * environment, namely fesetenv() and feupdateenv(). 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertextern const fenv_t __fe_dfl_env; 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define FE_DFL_ENV (&__fe_dfl_env) 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#pragma GCC visibility pop 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert__END_DECLS 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif /* ! _FENV_H_ */ 72