/usr/include/opencascade/GraphTools_DFSIterator.gxx is in libopencascade-foundation-dev 6.5.0.dfsg-2build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Created: Mon Oct 12 16:34:15 1992
// Author: Denis PASCAL
// <dp@bravox>
#include <Standard_NoMoreObject.hxx>
#include <Standard_NoSuchObject.hxx>
#include <TColStd_StackOfInteger.hxx>
//=======================================================================
//function : GraphTools_DFSIterator
//purpose :
//=======================================================================
GraphTools_DFSIterator::GraphTools_DFSIterator () {}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
void GraphTools_DFSIterator::Perform
(const Graph& G, const Vertex& V)
{
Standard_Integer index;
myVisited.Clear();
TColStd_StackOfInteger myReady;
index = myVisited.Add(V);
myReady.Push(index);
while (!myReady.IsEmpty()) {
Vertex w1 = myVisited (myReady.Top());
myReady.Pop();
for (VIterator it(G,w1); it.More(); it.Next()) {
Vertex w2 = it.Value();
if (!myVisited.Contains(w2)) {
index = myVisited.Add(w2);
myReady.Push(index);
}
}
}
myCurrentIndex = 1;
}
//=======================================================================
//function : More
//purpose :
//=======================================================================
Standard_Boolean GraphTools_DFSIterator::More () const
{
return myCurrentIndex <= myVisited.Extent();
}
//=======================================================================
//function : Next
//purpose :
//=======================================================================
void GraphTools_DFSIterator::Next ()
{
myCurrentIndex++;
}
//=======================================================================
//function : Value
//purpose :
//=======================================================================
const Vertex& GraphTools_DFSIterator::Value () const
{
return myVisited(myCurrentIndex);
}
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