overload bracket operator « Operator Overloading « C++ Tutorial

10.9.overload bracket operator
10.9.1.Overload ( ) for Point
10.9.2.overloading ( ) for the loc class
10.9.3.The overloaded operator[ ]( ) function returns the value of the array as indexed by the value of its parameter.
10.9.4.design the operator[ ]( ) function in such a way that the [ ] can be used on both the left and right sides of an assignment statement.
10.9.5.Add a range check to for overloaded [] operator
10.9.6.Overload () operator for two values