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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. namespace library {
  5.  
  6. // library.h
  7. //---------------------------
  8. class Interface {
  9.   public:
  10.     Interface();
  11.  
  12.     ~Interface();
  13.  
  14.     void f();
  15.  
  16.   private:
  17.     class Impl;
  18.     Impl* m_impl;
  19. };
  20. //---------------------------
  21.  
  22. // library.cpp
  23. //---------------------------
  24. class Interface::Impl {
  25.   public:
  26.     void f() {
  27.       std::cout << "f" << std::endl;
  28.     }
  29. };  
  30.  
  31. Interface::Interface() {
  32.   m_impl = new Interface::Impl();
  33. }   
  34.  
  35. Interface::~Interface() {
  36.   delete m_impl;
  37. }
  38.  
  39. void Interface::f() {
  40.   m_impl->f();
  41. }
  42. //---------------------------
  43.  
  44. }
  45.  
  46. int main()
  47. {
  48.   auto o = library::Interface();
  49.   o.f();
  50. }
Success #stdin #stdout 0s 3272KB
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f
https://ideone.com/5Bmsui
pimpl
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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