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  1. #include <iostream>
  2.  
  3. struct X{
  4.   X(){}
  5.   X(X const&){ std::cout << "X copy\n"; }
  6. };
  7.  
  8. struct Y{
  9.   void f(){
  10.     auto x_ = x;
  11.     [x_]{}();
  12.   }
  13.  
  14.   void g(){
  15.     auto& x_ = x;
  16.     [x_]{}();
  17.   }
  18.  
  19.   X x;
  20. };
  21.  
  22. int main(){
  23.   Y y;
  24.   y.f();
  25.   std::cout << "====\n";
  26.   y.g();
  27. }
  28.  
  29.  
Success #stdin #stdout 0s 2928KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
X copy
X copy
====
X copy
https://ideone.com/mNNxsH
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
secret

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