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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. template<class T, class... Args>
  5. T* make_ptr( Args... args )
  6. {
  7. 	return new T( args... );
  8. }
  9.  
  10. template<class T, class... Args>
  11. T* make_ptr_fwd( Args... args )
  12. {
  13. 	return new T( forward<Args>( args )... );
  14. }
  15.  
  16. struct Val {};
  17.  
  18. struct C {
  19. 	C( const Val& v ) { cout << "C( const Val& )" << endl; }
  20. 	C( Val&& ) { cout << "C( Val&& )" << endl; }
  21. };
  22.  
  23. int main() {
  24. 	cout << ">>> make_ptr:" << endl;
  25. 	C* c1 = make_ptr<C>( Val() );
  26.  
  27. 	cout << ">>> make_ptr_fwd:" << endl;
  28. 	C* c2 = make_ptr_fwd<C>( Val() );
  29. }
Success #stdin #stdout 0s 4208KB
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Standard input is empty
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>>> make_ptr:
C( const Val& )
>>> make_ptr_fwd:
C( Val&& )
https://ideone.com/qlfwKC
std::forward
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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