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  1. #include <iostream>
  2. using namespace std;
  3.  
  4.     template <class T>
  5.     struct clearable
  6.     {
  7.         void clear()
  8.         {
  9.             static T _clear;
  10.             *((T*)this) = _clear;
  11.         };
  12.     };
  13.  
  14.     class test : public clearable<test>
  15.     {
  16.         public:
  17.             int a;
  18.     };
  19.  
  20.     int main()
  21.     {
  22.         test _test;
  23.         _test.a=3;
  24.         _test.clear();
  25.  
  26.         printf("%d", _test.a);
  27.  
  28.         return 0;
  29.     }
  30.  
Success #stdin #stdout 0s 3456KB
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https://ideone.com/GEFKG0
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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