1 /* $NetBSD: fenv.h,v 1.13 2014/12/27 16:54:02 martin 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(__aarch64__) && !defined(__arm__) && !defined(__i386__) \ 29 && !defined(__hppa__) \ 30 && !defined(__or1k__) && !defined(__riscv__) && !defined(__sparc__) \ 31 && !defined(__x86_64__) 32 #error "fenv.h is currently not supported for this architecture" 33 #endif 34 35 #ifndef _FENV_H_ 36 #define _FENV_H_ 37 38 #include <sys/featuretest.h> 39 #include <machine/fenv.h> 40 41 __BEGIN_DECLS 42 43 /* Function prototypes */ 44 int feclearexcept(int); 45 int fegetexceptflag(fexcept_t *, int); 46 int feraiseexcept(int); 47 int fesetexceptflag(const fexcept_t *, int); 48 int fetestexcept(int); 49 int fegetround(void); 50 int fesetround(int); 51 int fegetenv(fenv_t *); 52 int feholdexcept(fenv_t *); 53 int fesetenv(const fenv_t *); 54 int feupdateenv(const fenv_t *); 55 56 #if defined(_NETBSD_SOURCE) || defined(_GNU_SOURCE) 57 58 int feenableexcept(int mask); 59 int fedisableexcept(int mask); 60 int fegetexcept(void); 61 62 #endif /* _NETBSD_SOURCE || _GNU_SOURCE */ 63 64 __END_DECLS 65 66 #endif /* ! _FENV_H_ */ 67