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Library 3

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bugfix
This commit is contained in:
Alessandro Ferro
2021-05-05 10:03:25 +02:00
parent 858e7debee
commit 4add56d732
2 changed files with 12 additions and 7 deletions
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16
librerie/exercise3/binarytree/binarytree.cpp
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@ -292,19 +292,21 @@ void BTPreOrderIterator<Data>::operator++(){
if(Terminated()) throw std::out_of_range("Iterator is terminated!");
if(curr->HasLeftChild()){
curr = &(curr->LeftChild());
if( curr->HasRightChild() )
stack.Push(&curr->RightChild());
if( curr->HasRightChild() ){
stack.Push(&(curr->RightChild()));
}
curr = &(curr->LeftChild());
}else if(curr->HasRightChild()){
curr = &curr->RightChild();
}
else{
try{
curr = stack.TopNPop();
}catch(std:: length_error exc){
else{ // is leaf
if(stack.Empty()){
curr = nullptr;
}else{
curr = stack.TopNPop();
}
}
}