2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
34 #ifdef __GNUC_GNU_INLINE__
35 #error "This file must be compiled with C99 'inline' semantics"
39 * Hopefully the system ID byte is immutable, so it's valid to use
40 * this as a default environment.
42 const fenv_t __fe_dfl_env = 0;
44 #ifdef __mips_soft_float
45 #define __set_env(env, flags, mask, rnd) env = ((flags) \
46 | (mask)<<_FPUSW_SHIFT \
48 #define __env_flags(env) ((env) & FE_ALL_EXCEPT)
49 #define __env_mask(env) (((env) >> _FPUSW_SHIFT) \
51 #define __env_round(env) (((env) >> 24) & _ROUND_MASK)
52 #include "fenv-softfloat.h"
55 extern inline int feclearexcept(int __excepts);
56 extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts);
57 extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
58 extern inline int feraiseexcept(int __excepts);
59 extern inline int fetestexcept(int __excepts);
60 extern inline int fegetround(void);
61 extern inline int fesetround(int __round);
62 extern inline int fegetenv(fenv_t *__envp);
63 extern inline int feholdexcept(fenv_t *__envp);
64 extern inline int fesetenv(const fenv_t *__envp);
65 extern inline int feupdateenv(const fenv_t *__envp);
66 extern inline int feenableexcept(int __mask);
67 extern inline int fedisableexcept(int __mask);
68 extern inline int fegetexcept(void);