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2
I as a prefix does not just apply to abstract classes; it applies to interfaces, which are pure virtual classes which intend only to define the behavior of the implementation (nothing more, nothing less) and serve as a handle for the implementation via. pointer in COM/OLEI as a prefix does not just apply to abstract classes; it applies to interfaces, which are pure virtual classes which intend only to define the behavior of the implementation (nothing more, nothing less) and serve as a handle for the implementation via. pointer in COM/OLE 
void fn() {
//do stuff
fn(); //?
} void fn() {
//do stuff
fn(); //?
} void x() {
std::vector<int> y;
x();
} void x() {
std::vector<int> y;
x();
} 
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