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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
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Standard input is empty
stdout
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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:
5 years ago
visibility:
public

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