summaryrefslogtreecommitdiff
path: root/ports/sysdeps/tile/bits/fenv.h
blob: 2fe58d0cd714df363b6ea6fbee3e3fa9f2126063 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
/* Copyright (C) 2011-2013 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library.  If not, see
   <http://www.gnu.org/licenses/>.  */

#ifndef _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif

/* The TILE-Gx hardware does not provide floating-point exception
   handling, and TILEPro does not support any floating-point operations.  */
#define FE_ALL_EXCEPT 0

/* TILE-Gx supports only round-to-nearest.  The software
   floating-point support also acts this way.  */
enum
  {
    __FE_UNDEFINED = 0,

    FE_TONEAREST =
#define FE_TONEAREST	1
      FE_TONEAREST,
  };

/* Type representing exception flags (if there were any).  */
typedef unsigned int fexcept_t;

/* Type representing floating-point environment.  */
typedef unsigned int fenv_t;

/* If the default argument is used we use this value.  */
#define FE_DFL_ENV	((const fenv_t *) -1l)