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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. class land{
  7. public:
  8.     land();
  9.     land(char* n, char* k, int p, int s, string h, int b);
  10.     land(const land& a);
  11.     ~land();
  12.     void editName(char*n);
  13.     void editKind(char*k);
  14.     void editPopulation(int p);
  15.     void editSpace(int s);
  16.     void editHead(string h);
  17.     void editBudget(int b);
  18.     friend ostream& operator <<(ostream& o, land& a);
  19.     friend istream& operator >>(istream& i, land& a);
  20.     land operator + ( int up);
  21.     friend bool operator > (const land a, const land b);
  22.     friend bool operator < (const land a, const land b);
  23.     friend bool operator == (const land a, const land b);
  24.     land operator % (int ub);
  25. private:
  26.     char* name;
  27.     char* kind;
  28.     int population;
  29.     int space;
  30.     string head;
  31.     int budget;
  32. };
  33.  
  34. land::land(){
  35.     name = "unknown";
  36.     kind = "unknown";
  37.     population = 0;
  38.     space = 0;
  39.     head = "Anonymous";
  40.     budget = 0;
  41. }
  42.  
  43. land::land(char* n, char* k, int p, int s, string h, int b){
  44.     name = n;
  45.     kind = k;
  46.     population = p;
  47.     space = s;
  48.     head = h;
  49.     budget = b;
  50. }
  51.  
  52. land::land(const land& a){
  53.     this->name = a.name;
  54.     this->kind = a.kind;
  55.     this->population = a.population;
  56.     this->space = a.space;
  57.     this->head = a.head;
  58.     this->budget = a.budget;
  59. }
  60.  
  61. void land::editName(char* n){
  62.     this->name = n;
  63. }
  64.  
  65. void land::editKind(char* k){
  66.     this->kind = k;
  67. }
  68.  
  69. void land::editPopulation(int p){
  70.     this->population = p;
  71. }
  72.  
  73. void land::editSpace(int s){
  74.     this->space = s;
  75. }
  76.  
  77. void land::editHead(string h){
  78.     this ->head = h;
  79. }
  80.  
  81. void land::editBudget(int b){
  82.     this->budget = b;
  83. }
  84.  
  85. istream& operator >> (istream& i, land& a){
  86.     i >> a.name >> a.kind >> a.population >> a.space >> a.head >> a.budget;
  87.     return i;
  88. }
  89.  
  90. ostream& operator << (ostream& o, land& a){
  91.     o << a.name << " " << a.kind << " " << a.population << " " << a.space << " " << a.head << " " << a.budget << endl;
  92.     return o;
  93. }
  94.  
  95. bool operator > (const land a, const land b){
  96.     if(a.population == b.population)
  97.         return a.space > b.space;
  98.     else return a.population > b.population;
  99. }
  100.  
  101. bool operator < (const land a, const land b){
  102.     if(a.population == b.population)
  103.         return a.space < b.space;
  104.     else return a.population < b.population;
  105. }
  106.  
  107. bool operator == (const land a, const land b){
  108.     if(a.population != b.population)
  109.         return 0;
  110.     else return a.space == b.space;
  111. }
  112.  
  113. /*land operator + (int up){
  114.     this->population += up;
  115.     return this;
  116. }*/
  117.  
  118. land::~land(){
  119. }
  120.  
  121. int main()
  122. {
  123.  
  124.     land test, test2;
  125.     cin >> test; // >> operator doesn't work
  126.    //test of output operators and methods of edition of containment (and comparison operators too)
  127.     cout << test;
  128.     test.editBudget(650);
  129.     test.editHead("Head");
  130.     test.editKind("City");
  131.     test.editName("Name");
  132.     test.editPopulation(789);
  133.     test.editSpace(888);
  134.     cout << test << endl << (test<test2) << ' ' << (test>test2) << ' ' << (test==test2);
  135.     return 0;
  136. }
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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unknown unknown 0 0 Anonymous 0
Name City 789 888 Head 650

0 1 0
https://ideone.com/aUP0U4
language:
C++14 (clang 8.0)
created:
8 years ago
visibility:
public

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