1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#define	__fenv_static
32#include "fenv.h"
33
34#ifdef __GNUC_GNU_INLINE__
35#error "This file must be compiled with C99 'inline' semantics"
36#endif
37
38/*
39 * Hopefully the system ID byte is immutable, so it's valid to use
40 * this as a default environment.
41 */
42const fenv_t __fe_dfl_env = 0;
43
44#ifdef	__mips_soft_float
45#define __set_env(env, flags, mask, rnd) env = ((flags)                 \
46                                                | (mask)<<_FPUSW_SHIFT  \
47                                                | (rnd) << 24)
48#define __env_flags(env)                ((env) & FE_ALL_EXCEPT)
49#define __env_mask(env)                 (((env) >> _FPUSW_SHIFT)        \
50                                                & FE_ALL_EXCEPT)
51#define __env_round(env)                (((env) >> 24) & _ROUND_MASK)
52#include "fenv-softfloat.h"
53#endif
54
55extern inline int feclearexcept(int __excepts);
56extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts);
57extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
58extern inline int feraiseexcept(int __excepts);
59extern inline int fetestexcept(int __excepts);
60extern inline int fegetround(void);
61extern inline int fesetround(int __round);
62extern inline int fegetenv(fenv_t *__envp);
63extern inline int feholdexcept(fenv_t *__envp);
64extern inline int fesetenv(const fenv_t *__envp);
65extern inline int feupdateenv(const fenv_t *__envp);
66extern inline int feenableexcept(int __mask);
67extern inline int fedisableexcept(int __mask);
68extern inline int fegetexcept(void);
69