Indexing Operators

Operators that return references based on an index

The indexing operators return references to some memory based on the value 
of their second, or right-hand side, operand. This operand is used as an 
index, or offset, from the beginning of some memory represented by the 
first, or left-hand side, operand.

Operator () (Array Index)
   Returns a reference to an element in an array.
Operator [] (String Index)
   Returns a reference to the numeric value of a character in a string.
Operator [] (Pointer Index)
   Returns a reference to memory offset from a base address.

