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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. namespace noncopyable_  // protection from unintended ADL
  5. {
  6.  
  7.     class noncopyable
  8.     {
  9.     protected:
  10.  
  11.         noncopyable()
  12.         {
  13.         	std::cout << "default noncopyable()/n";
  14.         }
  15.         ~noncopyable() {}
  16.  
  17.     //private:  
  18.         noncopyable(const noncopyable& that)
  19.         {
  20.         	std::cout << "copy noncopyable()/n";
  21.         }
  22.         const noncopyable& operator=(const noncopyable& that);
  23.     };
  24.  
  25. } // namespace noncopyable_
  26.  
  27. typedef noncopyable_::noncopyable noncopyable;
  28.  
  29. class Test : private noncopyable
  30. {
  31. public:
  32.     Test() : m_val() {}
  33.     Test(const Test& other) : m_val(other.m_val) {}
  34.     ~Test() {}
  35.  
  36. private:
  37.     int m_val;
  38. };
  39.  
  40. int main()
  41. {
  42. 	Test t1;
  43.     Test t2(t1);
  44. 	std::cout << "end of test./n";
  45. 	return 0;
  46. }
Success #stdin #stdout 0s 3456KB
comments (?)
stdin
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Standard input is empty
stdout
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default noncopyable()/ndefault noncopyable()/nend of test./n
https://ideone.com/S2pY7L
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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