CS202
6- ‹#›
Understanding the Syntax
nThis declaration allows us to apply the subtraction operator to two objects of the same class and returns an
object of that class as an rvalue.
nThe italics represent my recommendations, if followed, result in behavior that more closely matches that of the
built-in types.
nSince the predefined behavior of the subtraction operator does not modify its two operands, the formal arguments of the operator- function should be specified either as constant references or passed by value.
