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#include<vector>
 
template<typename T>
struct MyVector : private std::vector<T>
{
  typedef std::vector<T> vector;
 
  using vector::begin;  // ok
  using vector::end;  // ok
  using vector::size;  // ok
  using vector::operator ==;  // <---- error
 
  // Other customized methods
};
 
int main ()
{
  MyVector<int> v1, v2; 
}

prog.cpp: In instantiation of ‘struct MyVector<int>’:
prog.cpp:18:17:   required from here
prog.cpp:11:26: error: no members matching ‘MyVector<int>::vector {aka std::vector<int, std::allocator<int> >}::operator==’ in ‘MyVector<int>::vector {aka class std::vector<int, std::allocator<int> >}’

Standard output is empty