Search Result for "subtype":

The Free On-line Dictionary of Computing (30 December 2018):

subtype subtyping If S is a subtype of T then an expression of type S may be used anywhere that one of type T can and an implicit type conversion will be applied to convert it to type T. In object oriented programming, this means that objects of type S must accept every message that one of type T would. (1997-07-28)