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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6. class A {
  7.    int i;
  8.    // A(const A&);
  9. public:
  10.    typedef bool equality_should_be_overloaded;
  11.  
  12.    A(int i) : i(i) {cout << "consting " << i << endl;}
  13.    A(const A& ot) : i(ot.i) {cout << "copying " << i << endl;}
  14.  
  15. };
  16.  
  17. int main () {
  18.     vector<A> v1;
  19.     v1.reserve(4);
  20.     v1.emplace_back(1);
  21.     v1.emplace_back(2);
  22.     v1.emplace_back(3);
  23.     v1.emplace_back(4);
  24. }
Success #stdin #stdout 0s 2988KB
comments (?)
stdin
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Standard input is empty
stdout
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consting 1
consting 2
consting 3
consting 4
https://ideone.com/gvfzFz
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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