xref: /freebsd/lib/msun/aarch64/fenv.c (revision e0c4386e)
1 /*-
2  * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
3  * Copyright (c) 2013 Andrew Turner <andrew@FreeBSD.ORG>
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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #define	__fenv_static
29 #include "fenv.h"
30 
31 /*
32  * Hopefully the system ID byte is immutable, so it's valid to use
33  * this as a default environment.
34  */
35 const fenv_t __fe_dfl_env = 0;
36 
37 #ifdef __GNUC_GNU_INLINE__
38 #error "This file must be compiled with C99 'inline' semantics"
39 #endif
40 
41 extern inline int feclearexcept(int __excepts);
42 extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts);
43 extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
44 extern inline int feraiseexcept(int __excepts);
45 extern inline int fetestexcept(int __excepts);
46 extern inline int fegetround(void);
47 extern inline int fesetround(int __round);
48 extern inline int fegetenv(fenv_t *__envp);
49 extern inline int feholdexcept(fenv_t *__envp);
50 extern inline int fesetenv(const fenv_t *__envp);
51 extern inline int feupdateenv(const fenv_t *__envp);
52 extern inline int feenableexcept(int __mask);
53 extern inline int fedisableexcept(int __mask);
54 extern inline int fegetexcept(void);
55