Printing Binary Search Tree To File

aardalde (23)
I am not sure if I am doing this right. I need to traverse through the BST recursively and not sure why it is creating an empty file?

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void BinarySearchTree::save_file(string file)
{
    ofstream outFile;
    outFile.open(file);
    save_file_helper(root, file);
}

void BinarySearchTree::save_file_helper(Node* current, string file)
{
    ofstream outFile;
    while (outFile) {
        if (current == NULL)
            return;
        else {
            save_file_helper(current->left, file);
            outFile << current->title << endl;
            outFile << current->price << endl;
            outFile << current->amount << endl;
            outFile << current->isbn << endl;
            save_file_helper(current->right, file);
        }
    }
    outFile.close();
}
salem c (3700)
You're not passing the opened file to the helper, just the original filename.
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void BinarySearchTree::save_file(string file)
{
    ofstream outFile;
    outFile.open(file);
    save_file_helper(root, outFile);
    outFile.close();
}

void BinarySearchTree::save_file_helper(Node* current, ofstream &outFile)
{
        if (current == NULL)
            return;
        else {
            save_file_helper(current->left, file);
            outFile << current->title << endl;
            outFile << current->price << endl;
            outFile << current->amount << endl;
            outFile << current->isbn << endl;
            save_file_helper(current->right, file);
        }
}

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