Variable inaccessible despite class inheritance?

2018-06-28 02:47:40

This question already has an answer here:

Difference between private, public, and protected inheritance 15 answers

private variables are not accessible by derived classes. If you want to have access to it, you'll need to declare it as protected .

Also, your Truck class should declare a virutal destructor if you plan to use it as a polymorphic base class.

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