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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5.  
  6. struct Course;
  7. ostream &operator<<(ostream &os, Course c);
  8.  
  9.  
  10. struct Course {
  11. 	string name;
  12. 	Course(string n) {
  13. 		name = n;
  14. 	}
  15. 	Course(const Course &c) {
  16. 		cout << "Copying course" << endl;
  17. 		name = c.name;
  18. 	}
  19. 	Course &operator=(const Course &c) {
  20. 		cout << "Assigning course" << endl;
  21. 		name = c.name;
  22. 		return *this;
  23. 	}
  24. };
  25.  
  26.  
  27. struct Student {
  28. 	int id;
  29. 	Course *courses[5];
  30. 	int size;
  31. 	Student(int num) {
  32. 		id = num;
  33. 		for (int i = 0; i < 5; i++) {
  34. 			courses[i] = new Course("Course");
  35. 		}
  36. 		size = 0;
  37. 	}
  38. 	Student(const Student &s) {
  39. 		cout << "Copying student" << endl;
  40. 		id = s.id;
  41. 		for (int i = 0; i < 5; i++) {
  42. 			Course *temp = new Course(s.courses[i]->name);
  43. 			courses[i] = temp;
  44. 		}
  45. 	}
  46. 	Student &operator=(const Student &s) {
  47. 		cout << "Assigning student" << endl;
  48. 		id = s.id;
  49. 		for (int i = 0; i < 5; i++) {
  50. 			courses[i] = s.courses[i];
  51. 		}
  52. 		return *this;
  53. 	}
  54. 	~Student() {
  55. 		for (int i = 0; i < 5; i++) {
  56. 			delete courses[i];
  57. 		}
  58. 	}
  59. 	void print() {
  60. 		cout << id << ": " << endl;
  61. 		for (int i = 0; i < 5; i++) {
  62. 			cout << courses[i]->name << endl;
  63. 		}
  64. 	}
  65. 	void addCourse(Course *c) {
  66. 		delete courses[size];
  67. 		courses[size] = c;
  68. 		size++;
  69. 	}
  70. };
  71.  
  72. ostream &operator<<(ostream &os, Course *c) {
  73. 	return os << c->name << endl;
  74. }
  75.  
  76. int main() {
  77. 	Student one(2342134);
  78. 	Course* cs246 = new Course("cs246");
  79. 	Course* cs245 = new Course("cs245");
  80. 	one.addCourse(cs246);
  81. 	one.addCourse(cs245);
  82. 	one.print();
  83. 	Student two = one;
  84. 	two.print();
  85. }
  86.  
  87.  
Success #stdin #stdout 0s 3416KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
2342134: 
cs246
cs245
Course
Course
Course
Copying student
2342134: 
cs246
cs245
Course
Course
Course
https://ideone.com/4qcHZw
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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