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  1. #include <memory>
  2.  
  3. struct Widget
  4. {
  5.     struct Impl;
  6.     std::unique_ptr<Impl> impl;
  7.     void f();
  8. };
  9.  
  10. int main()
  11. {
  12.     Widget w;
  13. }
  14.  
  15. // The above breaks when you put the below into a separate TU
  16.  
  17. struct Widget::Impl { void f() {} };
  18.  
  19. void Widget::f() { impl->f(); }
  20.  
  21.  
Success #stdin #stdout 0s 3292KB
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https://ideone.com/t3q61H
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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