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Erschienen in:
2001 | OriginalPaper | Buchkapitel
Introduction
verfasst von : Karel Driesen
Erschienen in: Efficient Polymorphic Calls
Verlag: Springer US
Enthalten in: Professional Book Archive
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Object-oriented code looks different from procedural code. The main difference is the increased frequency of polymorphic calls. A polymorphic call looks like a procedural call, but where a procedural call has only one possible target subroutine, a polymorphic call can result in the execution of one of several different subroutines. The choice depends on the run time type of the first argument (the receiver). Polymorphic calls enable the construction of clean, modular code design. They allow the programmer to invoke operations on an object without knowing its exact type in advance.