extree.h

一个命令行运算器源代码 用C++写的命令行运算器

#ifndef _Extree_h
#define _Extree_h

#include "Btree.h"
#include "Token.h"

class Extree : public Btree<Token>
{
public:
    Extree(char*);
    ~Extree();

    double getresult();
    virtual void insert(const Token&);

private:
    virtual node<Token>* generate();
    virtual void destroy(node<Token>*);

    Token getoken();
    node<Token>* getnode();
    void _insert(node<Token>*&, node<Token>*);
    double calculate(node<Token>*);

    char* source;
};

inline double Extree::getresult()
{
    return calculate(root);
}

#endif