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Modern C++ Singleton

ulfben Dec 13th, 2017 77 Never
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  1. #pragma once
  2. template<class T>
  3. class SingletonBase{
  4. protected:
  5.     SingletonBase(){};
  6. public:
  7.     SingletonBase(const SingletonBase&) = delete;
  8.     SingletonBase operator=(const SingletonBase&) = delete;
  9.     static T& instance(){
  10.         static T single; //no need for DCLP since C++11 (paragraph 6.7.4, static initialization)
  11.         return single;
  12.     }
  13. };
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