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  1. // Online C++ compiler to run C++ program online
  2. #include <iostream>
  3. #include <string>
  4. using namespace std;
  5.     class string_pair {
  6.     public:
  7.         string_pair(const string & one = "", const string & two = "")
  8.             : first(new string(one)), second(new string(two)) { }
  9.  
  10.         string_pair(const string_pair & rhs) {
  11.             first = new string(*rhs.first);
  12.             second = new string(*rhs.second);
  13.         }
  14.  
  15.         ~string_pair() {
  16.             delete first;
  17.             delete second;
  18.         }
  19.  
  20.         string_pair & operator=(const string_pair & rhs) {
  21.             if (this != &rhs) {
  22.                 delete first;
  23.                 delete second;
  24.                 first = new string(*rhs.first);
  25.                 second = new string(*(rhs.second));
  26.             }
  27.             return *this;
  28.         }
  29.  
  30.         const string & get_first() const {
  31.             return *first;
  32.         }
  33.  
  34.         const string & get_second() const {
  35.             return *second;
  36.         }
  37.  
  38.         string to_string() {
  39.             return "(" + *first + ", " + *second + ")";
  40.         }
  41.     private:
  42.         string * first;
  43.         string * second;
  44.     };
  45.  
  46. int main() {
  47.     // Write C++ code here
  48.     std::cout << "Try programiz.pro";
  49.     string_pair s1("first", "second");
  50.  
  51.     string_pair s2("a", "b");
  52.  
  53.     s1=s2;
  54.  
  55.     cout<< s1.to_string() <<endl;
  56.  
  57.     string_pair s3(s2);
  58.  
  59.     cout<< s3.to_string() <<endl;
  60.  
  61.     string_pair s4("c","d");
  62.     s2=s4;
  63.     cout<< s2.to_string() <<endl;
  64.      cout<< s3.to_string() <<endl;
  65.  
  66.     return 0;
  67. }
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
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Standard input is empty
stdout
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Try programiz.pro(a, b)
(a, b)
(c, d)
(a, b)
https://ideone.com/gW0H9X
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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