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#pragma once
#include <fstream>
#include <iostream>
class string
{
char* str;
size_t size;
void copyFrom(const string& other);
void free();
public:
string();
string(const char*);
string(const string&);
string(string&&); //move constructor that accepts rvalue;
string& operator=(const string& other);
string& operator=(string&& other); //move op= that accepts rvalue;
~string();
size_t getSize() const;
void concat(const string& other);
const char* c_str() const;
string& operator+=(const string& other);
friend std::ostream& operator<<(std::ostream& stream, const string& str);
friend std::istream& operator>>(std::istream& stream, string& str);
void getLine(std::istream& out);
};
string operator+(const string& lhs, const string& rhs);
bool operator==(const string& lhs, const string& rhs);
bool operator<=(const string& lhs, const string& rhs);
bool operator<(const string& lhs, const string& rhs);
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