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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class StringEdit {
  5. 	char* p;   // pointer to hold characters
  6. 	int len;   // length of string
  7.  
  8. public:
  9. 	// Default constructor
  10. 	StringEdit() {
  11. 		len = 0;
  12. 		p = nullptr;
  13. 	}
  14. 	// Parameterized constructor
  15. 	StringEdit(const char* arr, int l) {
  16. 		len = l;
  17. 		p = new char[len];
  18. 		for (int i = 0; i < len; i++) {
  19. 			p[i] = arr[i];
  20. 		}
  21. 	}
  22.  
  23.     //copy constructor
  24. // 	StringEdit(const StringEdit& newStr) {
  25.  
  26. // 		len = newStr.len;
  27. // 		p = new char[len];
  28. // 		for (int i = 0; i < len; i++) {
  29. // 			p[i] = newStr.p[i];
  30. // 		}
  31.  
  32. // 	}
  33.  
  34. 	// Copy assignment operator overload
  35. 	StringEdit& operator=(const StringEdit& newStr) {
  36. 		if (this != &newStr) {  // avoid self-assignment
  37. 			delete[] p;         // free old memory
  38.  
  39. 			len = newStr.len;
  40. 			p = new char[len];
  41. 			for (int i = 0; i < len; i++) {
  42. 				p[i] = newStr.p[i];
  43. 			}
  44. 		}
  45. 		return *this;
  46. 	}
  47.  
  48. 	// Display function
  49. 	void display()  {
  50. 		for (int i = 0; i < len; i++) {
  51. 			cout << p[i];
  52. 		}
  53. 		cout << endl;
  54. 	}
  55.  
  56. 	// Destructor
  57. 	~StringEdit() {
  58. 		delete[] p;
  59. 	}
  60. };
  61.  
  62. int main() {
  63. 	StringEdit s;                          // empty string
  64. 	StringEdit dummy("abcde", 5);          // parameterized constructor
  65. 	s = dummy;                         // uses overloaded operator=
  66.  
  67. 	cout << "Dummy string: ";
  68. 	dummy.display();
  69. 	cout << "Copied string (s): ";
  70. 	s.display();
  71. 	//cout << "Copied string (s): ";
  72. 	return 0;
  73. }
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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Dummy string: abcde
Copied string (s): abcde
https://ideone.com/PudyQ7
language:
C++ (gcc 8.3)
created:
13 hours ago
visibility:
public

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