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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class A {
  5.  public:
  6.    A() {
  7.    	 log("Constructor A");
  8.    }
  9.    ~A() {
  10.    	 log("Destructor A");
  11.    }
  12.    virtual void log(const char* message) {
  13.    	std::cout << "Log from A! (" << message << ")\n";
  14.    }
  15.    virtual void do_something() {
  16.    	 log("Do something");
  17.    }
  18. };
  19.  
  20. class B : public A{
  21.  public:
  22.    B() {
  23.    	 log("Constructor B");
  24.    }
  25.    ~B() {
  26.    	 log("Destructor B");
  27.    }
  28.    virtual void log(const char* message) {
  29.    	std::cout << "Log from B! (" << message << ")\n";
  30.    }
  31. };
  32.  
  33. int main() {
  34. 	B b;
  35. 	b.do_something();
  36. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin 
Standard input is empty
stdout 
Log from A! (Constructor A)
Log from B! (Constructor B)
Log from B! (Do something)
Log from B! (Destructor B)
Log from A! (Destructor A)
https://ideone.com/OHC5no
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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