1 /* $OpenBSD: fenv.h,v 1.2 2011/05/25 21:46:49 martynas Exp $ */ 2 /* $NetBSD: fenv.h,v 1.2.4.1 2011/02/08 16:18:55 bouyer Exp $ */ 3 4 /* 5 * Copyright (c) 2010 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef _FENV_H_ 31 #define _FENV_H_ 32 33 #include <sys/cdefs.h> 34 #include <machine/fenv.h> 35 36 __BEGIN_DECLS 37 #pragma GCC visibility push(default) 38 39 int feclearexcept(int); 40 int fegetexceptflag(fexcept_t *, int); 41 int feraiseexcept(int); 42 int fesetexceptflag(const fexcept_t *, int); 43 int fetestexcept(int); 44 45 int fegetround(void); 46 int fesetround(int); 47 48 int fegetenv(fenv_t *); 49 int feholdexcept(fenv_t *); 50 int fesetenv(const fenv_t *); 51 int feupdateenv(const fenv_t *); 52 53 int feenableexcept(int); 54 int fedisableexcept(int); 55 int fegetexcept(void); 56 57 /* 58 * The following constant represents the default floating-point environment 59 * (that is, the one installed at program startup) and has type pointer to 60 * const-qualified fenv_t. 61 * 62 * It can be used as an argument to the functions that manage the floating-point 63 * environment, namely fesetenv() and feupdateenv(). 64 */ 65 extern const fenv_t __fe_dfl_env; 66 #define FE_DFL_ENV (&__fe_dfl_env) 67 68 #pragma GCC visibility pop 69 __END_DECLS 70 71 #endif /* ! _FENV_H_ */ 72