glibc/sysdeps/tile/bits/fenv.h
2012-01-31 11:46:09 -05:00

44 lines
1.6 KiB
C

/* Copyright (C) 2011 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#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_TONEAREST = 1,
#define FE_TONEAREST 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)