/*Thanks to MO ELomari for making this CRTP work with vector of base class pointers https://www.sololearn.com/Discuss/3242821/how-to-store-pointer-data-in-vector-in-case-of-crtp */ #include #include #include #include using namespace std; template class Employee { protected: string m_strName; public: Employee(string name) : m_strName(name) {} void getInfo() { cout << "Hi , " << m_strName << " this side..!\n"; } void getRole() { static_cast(this)->getRole(); } }; class Developer : public Employee { public: Developer(string name) : Employee(name) {} void getRole() { cout << m_strName << " - Developer\n"; } }; class QA : public Employee { public: QA(string name) : Employee(name) {} void getRole() { cout << m_strName << " - QA\n"; } }; void test1() { unique_ptr> ptr1 = make_unique("Abc"); ptr1->getInfo(); ptr1->getRole(); unique_ptr> ptr2 = make_unique("Bcd"); ptr2->getInfo(); ptr2->getRole(); } void test2() { using uptrQA = unique_ptr>; using uptrDev = unique_ptr>; vector> vData; vData.push_back(make_unique("Abc")); vData.push_back(make_unique("Bcd")); for(auto& val : vData) std::visit([](auto& arg){arg->getInfo();arg->getRole();},val); } int main() { test1(); cout << endl << endl; test2(); return 0; }

CRTP_How to store pointer in vector - Solved