1 /* $NetBSD: fenv.h,v 1.9 2013/04/28 21:07:36 matt Exp $ */ 2 /* 3 * Copyright (c) 2010 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #if !defined(__arm__) && !defined(__i386__) \ 29 && !defined(__sparc__) && !defined(__x86_64__) 30 #error "fenv.h is currently not supported for this architecture" 31 #endif 32 33 #ifndef _FENV_H_ 34 #define _FENV_H_ 35 36 #include <sys/featuretest.h> 37 #include <machine/fenv.h> 38 39 __BEGIN_DECLS 40 41 /* Function prototypes */ 42 int feclearexcept(int); 43 int fegetexceptflag(fexcept_t *, int); 44 int feraiseexcept(int); 45 int fesetexceptflag(const fexcept_t *, int); 46 int fetestexcept(int); 47 int fegetround(void); 48 int fesetround(int); 49 int fegetenv(fenv_t *); 50 int feholdexcept(fenv_t *); 51 int fesetenv(const fenv_t *); 52 int feupdateenv(const fenv_t *); 53 54 #if defined(_NETBSD_SOURCE) || defined(_GNU_SOURCE) 55 56 int feenableexcept(int mask); 57 int fedisableexcept(int mask); 58 int fegetexcept(void); 59 60 #endif /* _NETBSD_SOURCE || _GNU_SOURCE */ 61 62 __END_DECLS 63 64 #endif /* ! _FENV_H_ */ 65