mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-02 16:23:56 +08:00
83f517994d
2005-08-17 Kelley Cook <kcook@gcc.gnu.org> * All files: Update FSF address. From-SVN: r103192
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/* Return nonzero value if number is negative. */
|
|
|
|
/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU ISO C++ Library. This library is free
|
|
software; you can redistribute it and/or modify it under the
|
|
terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this library; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
|
USA.
|
|
|
|
As a special exception, you may use this file as part of a free software
|
|
library without restriction. Specifically, if other files instantiate
|
|
templates or use macros or inline functions from this file, or you compile
|
|
this file and link it with other files to produce an executable, this
|
|
file does not by itself cause the resulting executable to be covered by
|
|
the GNU General Public License. This exception does not however
|
|
invalidate any other reasons why the executable file might be covered by
|
|
the GNU General Public License. */
|
|
|
|
|
|
#include <math.h>
|
|
#include "mathconf.h"
|
|
|
|
int
|
|
__signbit (double x)
|
|
{
|
|
Int32_t hx;
|
|
|
|
GET_HIGH_WORD (hx, x);
|
|
return hx & 0x80000000;
|
|
}
|