C++: Why does my DerivedClass's constructor not have access to the BaseClass's protected field?

Question

I have a constructor attempting to initialize a field in a base class. The compiler complains. The field is protected, so derived classes should have access.

Answer 1

You need to call the base class constructor as follows:

DerivedClass::DerivedClass(std::string data) : BaseClass(data) {
}

Each class should be in charge of initializing it's members.