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(C++) protected

Keyword for setting class access level to protected (the other access levels are private and public) or for protected inheritance.

class Base

{

protected: int m_x;

};

class Derived : public Base

{

void ResetX() { m_x = 0; } //For a derived class (only) m_x is public

};

int main()

{

Base b;

b.m_x = 0; //Not allowed! Only derived classes have access to Base::m_x

}

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