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The following simple example will produce a compiler error, since I accidently use private inheritance:
main.cpp:21: error: ‘A’ is an inaccessible base of ‘B’
class A
{
};
class B : /*ups forgot that -> public*/ A
{
};
int main(int , char *[])
{
A* test = new B;
return 0;
}
Could you help me and explain what exactly is inaccessible in the base class and why it is needed in the conversion from B* to A*?
Private inheritance means that for everyone except B (and B’s friends), B is not derived from A.