英和和英

出典:『Wikipedia』 (2011/03/09 23:43 UTC 版)

英語による解説

引用

In object-oriented programming, a subclass typically extends its superclass by defining additional member variables. If a superclass instance is assigned its value from a subclass instance, member variables defined in the subclass cannot be copied, since the superclass has no place to store them. This is a natural and unavoidable consequence of assignment by value from subclass objects. The term object slicing is sometimes used to refer to this aspect of assignment by value to a superclass instance.