| Calin Juravle | 2d36790 | 2014-02-25 14:49:41 +0000 | [diff] [blame^] | 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 | |
| 38 | int feclearexcept(int); |
| 39 | int fegetexceptflag(fexcept_t *, int); |
| 40 | int feraiseexcept(int); |
| 41 | int fesetexceptflag(const fexcept_t *, int); |
| 42 | int fetestexcept(int); |
| 43 | |
| 44 | int fegetround(void); |
| 45 | int fesetround(int); |
| 46 | |
| 47 | int fegetenv(fenv_t *); |
| 48 | int feholdexcept(fenv_t *); |
| 49 | int fesetenv(const fenv_t *); |
| 50 | int feupdateenv(const fenv_t *); |
| 51 | |
| 52 | int feenableexcept(int); |
| 53 | int fedisableexcept(int); |
| 54 | int fegetexcept(void); |
| 55 | |
| 56 | /* |
| 57 | * The following constant represents the default floating-point environment |
| 58 | * (that is, the one installed at program startup) and has type pointer to |
| 59 | * const-qualified fenv_t. |
| 60 | * |
| 61 | * It can be used as an argument to the functions that manage the floating-point |
| 62 | * environment, namely fesetenv() and feupdateenv(). |
| 63 | */ |
| 64 | extern const fenv_t __fe_dfl_env; |
| 65 | #define FE_DFL_ENV (&__fe_dfl_env) |
| 66 | |
| 67 | __END_DECLS |
| 68 | |
| 69 | #endif /* ! _FENV_H_ */ |