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  1.     #include <iostream>
  2.  
  3.     class Base {
  4.     public:
  5.         virtual void foo() { std::cout << "Base::foo()\n"; }
  6.         virtual bool isDerived() const { return false; }
  7.     };
  8.  
  9.     class Derived : public Base {
  10.     public:
  11.         void foo() override { std::cout << "Derived::foo()\n"; }
  12.         bool isDerived() const { return true; }
  13.     };
  14.  
  15.     int main() {
  16.         Base* crrPos = new Derived;
  17.         crrPos->foo();
  18.         bool isDerived = crrPos->isDerived();
  19.         std::cout << isDerived << '\n';
  20.         delete crrPos;
  21.     }
  22.  
Success #stdin #stdout 0s 3456KB
comments (?)
stdin 
Standard input is empty
stdout 
Derived::foo()
1
https://ideone.com/UKcBaA
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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