Whoami revisited
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#include <iostream>
#include <vector>
#include <algorithm>
class A
{
public:
A() {}
virtual void whoami() const { std::cout<<"I am an instance of A"<<std::endl; }
~A() {}
};
class B : public A
{
public:
B() : A() {}
void whoami() const override { std::cout<<"I am an instance of B"<<std::endl; }
~B() {}
};
void consume( const A& a )
{
a.whoami();
}
int main() {
std::vector<A> a(10,B());
std::for_each( begin(a),end(a), [](const A& a) {consume(a); } );
return 0;
}
Cpp
INFO