Initialization list of members with attributes from another class (inheritance)

Question

I know a member startup list declares and at the same instant initializes such an attribute(s), that’s what I know so far.

In the following code:

#include <iostream> // std::cout


class Foo {
public:
    const int intNum;
};


class Bar: public Foo {
public:
    Bar( int x ): IntNum( x ) {}
};


int main()
{
    Bar bar( 1 );
    
    std :: cout << bar.intNum << "\n";
    
    
    return 0;
}

I was trying to initialize the attribute intNum who now belongs to the class Bar for having inherited from Foo, then if intVar became Bar Why was there a mistake trying to initialize? What’s wrong with the code?

Answer 1

What’s the mistake? This would be important to include in the question.

I see that you stated intNum with lowercase "i" in the parent class, but are trying to initialize Intnum (with uppercase "I" in the daughter class.