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GraphNode.C
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1998-03-25
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// $Id: GraphNode.C,v 1.7 1998/03/25 12:43:21 zeller Exp $
// GraphNode class
// Copyright (C) 1995 Technische Universitaet Braunschweig, Germany.
// Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
//
// This file is part of DDD.
//
// DDD 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 of the License, or (at your option) any later version.
//
// DDD 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 DDD -- see the file COPYING.
// If not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// DDD is the data display debugger.
// For details, see the DDD World-Wide-Web page,
// `http://www.cs.tu-bs.de/softech/ddd/',
// or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
char GraphNode_rcsid[] =
"$Id: GraphNode.C,v 1.7 1998/03/25 12:43:21 zeller Exp $";
#ifdef __GNUG__
#pragma implementation
#pragma implementation "GraphNodeI.h"
#endif
#include "GraphNode.h"
DEFINE_TYPE_INFO_0(GraphNode)
// Representation invariant
bool GraphNode::OK() const
{
GraphEdge *e;
// check nodes
for (e = firstFrom(); e != 0; e = nextFrom(e))
assert(e->from() == this);
for (e = firstTo(); e != 0; e = nextTo(e))
assert(e->to() == this);
return true;
}