BinNode.h

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#pragma once
#include <iostream>
 
class BinNode {
private:
    char character;         
    int frequency;          
    BinNode* leftChild;     
    BinNode* rightChild;    
public:
    BinNode(char);
    BinNode(char, int);
 
    friend std::ostream& operator<<(std::ostream&, BinNode*);
    friend std::ostream& operator<<(std::ostream&, const BinNode&);
    
    bool operator<(const BinNode&);
    
    bool operator<=(const BinNode&);
        
    char getCharacter() const;
 
    int getFrequency() const;
 
    BinNode* getLeftChild() const;
 
    BinNode* getRightChild() const;
 
    void setLeftChild(BinNode*);
    
    void setRightChild(BinNode*);
 
    bool isLeaf();
};