Function Overloading (cont’d)

C++ lets us define multiple functions with the same name, as long as they can be distinguished based on their argument list. Such a multiply defined function is “overloaded”.

int abs(int num);

abs(1); // call abs(int)

abs(1.0); // call abs(double)

vector cross(vector i, vector j, vector k);

cross(a, b); // call first cross

cross(a, b, c); // call second cross

C++ lets us define multiple functions with the same name, as long as they can be distinguished based on their argument list. Such a multiply defined function is “overloaded”.