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  1. #include <iostream>
  2. #include <cstdlib>
  3. #include <cstring>
  4. using namespace std;
  5.  
  6. class my_string {
  7. 	size_t length = 0;
  8. 	char *data = nullptr;
  9.  
  10. 	void set_data(char const *str) {
  11. 		length = strlen(str);
  12. 		if(data) {
  13. 			delete []data;
  14. 		}
  15. 		data = strcpy(new char[length+1], str);
  16. 	}
  17. public:
  18. 	my_string(char const *str) {
  19. 		set_data(str);
  20. 	}
  21.  
  22. 	my_string(my_string const &other): 
  23. 		my_string(other.c_str()) {}
  24.  
  25. 	char const * c_str() const {
  26. 		return data;
  27. 	}
  28.  
  29. 	my_string &operator=(char const *str) {
  30. 		set_data(str);	
  31. 		return *this;
  32. 	}
  33.  
  34. 	my_string &operator=(my_string const &other) {
  35. 		set_data(other.c_str());
  36. 		return *this;
  37. 	}
  38.  
  39. 	~my_string() {
  40. 		delete []data;
  41. 	}
  42.  
  43. 	friend ostream &operator<<(ostream &out, my_string const &str) {
  44. 		return out << str.c_str();
  45. 	}
  46.  
  47. 	friend istream &operator>>(istream &in, my_string &str) {
  48. 		return in; //jestem w trakcie oglądania dr. house, jeśli chcesz sie bawic w relokacje to powodzonka
  49. 	}
  50. };
  51.  
  52. struct person {
  53. 	my_string name, surname;
  54. 	friend ostream &operator<<(ostream &out, person const &p) {
  55. 		return out << p.name << " " << p.surname;
  56. 	}
  57. };
  58.  
  59. int main() {
  60. 	person p = {
  61. 		"Adam", "Kowalski"
  62. 	};
  63. 	cout << p << endl;
  64. 	p.surname = "Malinowski";
  65. 	cout << p << endl;
  66. 	p.name = my_string("Janeczek");
  67. 	cout << p << endl;
  68. 	return 0;
  69. }
Success #stdin #stdout 0s 3468KB
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Adam Kowalski
Adam Malinowski
Janeczek Malinowski
https://ideone.com/ywVPfr
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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