/**
* DOCUMENT ME!
*
* @param node0 DOCUMENT ME!
* @param node1 DOCUMENT ME!
* @param outgoing DOCUMENT ME!
* @param incoming DOCUMENT ME!
* @param undirected DOCUMENT ME!
* @return DOCUMENT ME!
*/
public final IntIterator edgesConnecting(
final int node0,
final int node1,
final boolean outgoing,
final boolean incoming,
final boolean undirected) {
final IntEnumerator node0Adj = edgesAdjacent(node0, outgoing, incoming, undirected);
final IntEnumerator node1Adj = edgesAdjacent(node1, incoming, outgoing, undirected);
if ((node0Adj == null) || (node1Adj == null)) {
return null;
}
final IntEnumerator theAdj;
final int nodeZero;
final int nodeOne;
if (node0Adj.numRemaining() <= node1Adj.numRemaining()) {
theAdj = node0Adj;
nodeZero = node0;
nodeOne = node1;
} else {
theAdj = node1Adj;
nodeZero = node1;
nodeOne = node0;
}
return new ConnectingEdgesIterator(theAdj, nodeZero, nodeOne, this);
}
/**
* DOCUMENT ME!
*
* @param node DOCUMENT ME!
* @return DOCUMENT ME!
*/
public final boolean nodeRemove(final int node) {
final IntEnumerator edges = edgesAdjacent(node, true, true, true);
if (edges == null) {
return false;
}
m_stack.empty();
while (edges.numRemaining() > 0) m_stack.push(edges.nextInt());
while (m_stack.size() > 0) edgeRemove(m_stack.pop());
final Node n = m_nodes.getNodeAtIndex(node);
if (n.prevNode != null) {
n.prevNode.nextNode = n.nextNode;
} else {
m_firstNode = n.nextNode;
}
if (n.nextNode != null) {
n.nextNode.prevNode = n.prevNode;
}
m_nodes.setNodeAtIndex(null, node);
n.prevNode = null;
n.firstOutEdge = null;
n.firstInEdge = null;
m_nodeDepot.recycleNode(n);
m_nodeCount--;
return true;
}
private static final void _REPEAT_TEST_CASE_(final int[] elements, final int[] output) {
_THE_HEAP_.empty();
_THE_HEAP_.toss(elements, 0, elements.length);
final IntEnumerator iter = _THE_HEAP_.orderedElements(true);
final int numElements = iter.numRemaining();
if (numElements != output.length)
throw new IllegalStateException("output array is incorrect size");
for (int i = 0; i < numElements; i++) output[i] = iter.nextInt();
}
private static final int[] _THE_TEST_CASE_(final int[] elements) {
_THE_HEAP_ = new MinIntHeap();
_THE_HEAP_.toss(elements, 0, elements.length);
final IntEnumerator iter = _THE_HEAP_.orderedElements(true);
final int[] returnThis = new int[iter.numRemaining()];
final int numElements = returnThis.length;
for (int i = 0; i < numElements; i++) returnThis[i] = iter.nextInt();
return returnThis;
}
private void ensureComputeNext() {
if (nextEdge != -1) {
return;
}
while (theAdj.numRemaining() > 0) {
final int edge = theAdj.nextInt();
if (nodeOne == (nodeZero ^ graph.edgeSource(edge) ^ graph.edgeTarget(edge))) {
nextEdge = edge;
return;
}
}
nextEdge = -2;
}