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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class vector {
  5.  
  6. public:
  7.     int size;
  8.  
  9.     vector() {
  10.         cout << "In empty constructor\n";
  11.         this->size = 5;
  12.         cout << "size = " << size << endl;
  13.     }
  14.  
  15.     vector(int size) {
  16.         cout << "In size constructor\n";
  17.         this->size = size;
  18.         cout << "size = " << size << endl;
  19.     }
  20.  
  21.     vector(const vector &v) {
  22.         cout << "inside copy constructor\n";
  23.         this->size = v.size;
  24.         cout << "size = " << this->size << endl;
  25.     }
  26.  
  27.     vector operator ++() {
  28.         vector v = *this;
  29.         (this->size)++;
  30.         return v;
  31.     }
  32.  
  33.     vector operator ++(int a) {
  34.         cout << "a = " << a << endl;
  35.         vector v = *this;
  36.         (this->size)++;
  37.         return v;
  38.     }
  39.  
  40.     vector operator+(vector &a) {
  41.         vector  v;
  42.         v.size = this->size + a.size;
  43.         return v;
  44.     }
  45.  
  46.     vector& operator=(vector &a) {
  47.         cout << "Inside = assignment operator\n";
  48.         this->size = a.size;
  49.         return *this;
  50.     }
  51.  
  52.     ~vector() {
  53.         cout << "In destructor for vector of size = " << this->size << endl;
  54.     }
  55.  
  56. };
  57.  
  58. int main(int argc, char** argv) {
  59.     vector v;
  60.     vector v2(27);
  61.     vector v3 = v + v2;
  62.     return 0;
  63. }
  64.  
Success #stdin #stdout 0s 3140KB
comments (?)
stdin
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Standard input is empty
stdout
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In empty constructor
size = 5
In size constructor
size = 27
In empty constructor
size = 5
In destructor for vector of size = 32
In destructor for vector of size = 27
In destructor for vector of size = 5
https://ideone.com/S9EtjR
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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