#ifndef String_h
#define String_h

#include <stdio.h>
#include <string.h>
#include <iostream>
using namespace std;

class String {
  private:
	char   *str_;
	size_t  size_;
	size_t  len_;
	// construtor privado
	String( size_t s ) { len_ = 0; size_ = s; str_ = new char[size_]; }

 public:
	String( char* s = "" );
	~String() { delete str_; }

	size_t lenght() { return len_; }

	// comparacoes
	int operator==(String& s) { return strcmp(str_, s.str_) == 0; }
	int operator< (String& s) { return strcmp(str_, s.str_) <  0; }
	int operator<=(String& s) { return strcmp(str_, s.str_) <= 0; }
	int operator> (String& s) { return strcmp(str_, s.str_) >  0; }
	int operator>=(String& s) { return strcmp(str_, s.str_) >= 0; }

	// atribuicao
	String& operator=(String& s);
	String& operator=(char* s);

	// acesso aos caracteres:
	char& operator[](int i);

	// concatenação
	String& operator+(String& s);

	// conversao para char*
	operator const char*() { return str_; }
 };

#endif