1 /*
2   (c) Copyright 2019 Joel Sherrill <joel@rtems.org
3   All rights reserved.
4 
5   Redistribution and use in source and binary forms, with or without
6   modification, are permitted provided that the following conditions
7   are met:
8 
9   1. Redistributions of source code must retain the above copyright
10      notice, this list of conditions and the following disclaimer.
11 
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 COPYRIGHT HOLDERS AND CONTRIBUTORS
17   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28 
29 #include <fenv.h>
30 
31 /*
32  * This is a non-functional implementation that should be overridden
33  * by an architecture specific implementation in newlib/libm/machine/ARCH.
34  *
35  * The implementation must define FE_DFL_ENV to point to a default
36  * environment of type fenv_t.
37  */
38 
39 /* Non-static and writable to allow initialization at startup.  */
40 fenv_t _fe_dfl_env;
41