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| 1 | 13 | up20180614 | /* $NetBSD: fenv.h,v 1.13 2014/12/27 16:54:02 martin Exp $ */
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| 2 | /*
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| 3 | * Copyright (c) 2010 The NetBSD Foundation, Inc.
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | * 1. Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | *
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| 15 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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| 16 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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| 17 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 18 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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| 19 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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| 20 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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| 21 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 24 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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| 25 | * POSSIBILITY OF SUCH DAMAGE.
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| 26 | */
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| 27 | |||
| 28 | #if !defined(__aarch64__) && !defined(__arm__) && !defined(__i386__) \
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| 29 | && !defined(__hppa__) \ |
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| 30 | && !defined(__or1k__) && !defined(__riscv__) && !defined(__sparc__) \ |
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| 31 | && !defined(__x86_64__) |
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| 32 | #error "fenv.h is currently not supported for this architecture" |
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| 33 | #endif
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| 34 | |||
| 35 | #ifndef _FENV_H_
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| 36 | #define _FENV_H_
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| 37 | |||
| 38 | #include <sys/featuretest.h> |
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| 39 | #include <machine/fenv.h> |
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| 40 | |||
| 41 | __BEGIN_DECLS |
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| 42 | |||
| 43 | /* Function prototypes */
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| 44 | int feclearexcept(int); |
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| 45 | int fegetexceptflag(fexcept_t *, int); |
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| 46 | int feraiseexcept(int); |
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| 47 | int fesetexceptflag(const fexcept_t *, int); |
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| 48 | int fetestexcept(int); |
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| 49 | int fegetround(void); |
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| 50 | int fesetround(int); |
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| 51 | int fegetenv(fenv_t *);
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| 52 | int feholdexcept(fenv_t *);
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| 53 | int fesetenv(const fenv_t *); |
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| 54 | int feupdateenv(const fenv_t *); |
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| 55 | |||
| 56 | #if defined(_NETBSD_SOURCE) || defined(_GNU_SOURCE)
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| 57 | |||
| 58 | int feenableexcept(int mask); |
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| 59 | int fedisableexcept(int mask); |
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| 60 | int fegetexcept(void); |
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| 61 | |||
| 62 | #endif /* _NETBSD_SOURCE || _GNU_SOURCE */ |
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| 63 | |||
| 64 | __END_DECLS |
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| 65 | |||
| 66 | #endif /* ! _FENV_H_ */ |