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  1. #include <iostream>
  2. #include <map>
  3. #include <utility>
  4.  
  5. class NotDefaultConstructible {
  6. public:
  7.     NotDefaultConstructible(double d) : m_d(d) {}
  8.     double d() const { return m_d; }
  9. private:
  10.     double m_d;
  11. };
  12.  
  13. int main()
  14. {
  15.     std::map<int, NotDefaultConstructible> m;
  16.     NotDefaultConstructible ndc(3.14);
  17.     m.insert(std::make_pair(42, ndc));
  18.     std::cout << m.find(42)->second.d() << std::endl;
  19. }
Success #stdin #stdout 0s 3428KB
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Standard input is empty
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3.14
https://ideone.com/nOck1I
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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