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  1. #include <cstdio>
  2. #include <iostream>
  3. #include <string>
  4. #include <stdexcept>
  5. #include <sstream>
  6.  
  7. template<typename Tval_type>
  8. class List {
  9. private:
  10. 	typedef struct el {
  11. 		struct el *next;
  12. 		struct el *prev;
  13. 		Tval_type val;
  14. 	} el;
  15. 	el *first;
  16. 	el *last;
  17. public:
  18. 	List() : first(NULL), last(NULL) {}
  19. 	void push_back(Tval_type val) {
  20. 		el* n = new el;
  21. 		n->next = NULL;
  22. 		n->prev = last;
  23. 		n->val = val;
  24. 		if(!first && !last)
  25. 			first = n;
  26. 		else
  27. 			last->next = n;
  28. 		last = n;
  29. 	}
  30. 	Tval_type& get(size_t index) {
  31. 		el *e = first;
  32. 		while(index && e) {
  33. 			--index;
  34. 			e = e->next;
  35. 		}
  36. 		if(index)
  37. 			throw std::out_of_range("index >= list.size() :(");
  38. 		return e->val;
  39. 	}
  40. 	size_t size() {
  41. 		size_t s = 0;
  42. 		for(el *e = first; e; e = e->next, ++s);
  43. 		return s;
  44. 	}
  45. 	~List() {
  46. 		el *ne, *e = first;
  47. 		while(e) {
  48. 			ne = e->next;
  49. 			delete e;
  50. 			e = ne;
  51. 		}
  52. 	}
  53. };
  54.  
  55. class Osoba {
  56. private:
  57. 	std::string imie;
  58. 	int wiek;
  59. public:
  60. 	Osoba() : imie(""), wiek(-1) {}
  61. 	Osoba(std::string imie, int wiek) : imie(imie), wiek(wiek) {}
  62. 	void setWiek(int wiek) { this->wiek = wiek; }
  63. 	void setImie(std::string imie) { this->imie = imie; }
  64. 	std::string toString() {
  65. 		std::stringstream wiekStream;
  66. 		wiekStream << wiek;
  67. 		return imie+" "+wiekStream.str();
  68. 	}
  69. };
  70.  
  71. int main(void) {
  72. 	List<Osoba> listaOsob;
  73. 	listaOsob.push_back(Osoba("ABC",16));
  74. 	listaOsob.push_back(Osoba("DEF",17));
  75. 	listaOsob.push_back(Osoba("GHI",18));
  76. 	size_t listaSize = listaOsob.size();
  77.  
  78. 	for(size_t i = 0; i < listaSize; ++i)
  79. 		std::cout << listaOsob.get(i).toString() << std::endl;
  80.  
  81. 	listaOsob.get(0).setWiek(26);
  82. 	listaOsob.get(2).setImie("zmienione GHI");
  83.  
  84. 	for(size_t i = 0; i < listaSize; ++i)
  85. 			std::cout << listaOsob.get(i).toString() << std::endl;
  86.  
  87. 	return 0;
  88. }
Success #stdin #stdout 0s 3436KB
comments (?)
stdin
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Standard input is empty
stdout
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ABC 16
DEF 17
GHI 18
ABC 26
DEF 17
zmienione GHI 18
https://ideone.com/rfjpFu
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
secret

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