Method for extending a fourth generation programming language

Details Method for extending a fourth generation programming language Method for extending a fourth generation programming language

1995-10-06

1998-02-24

Oberley, Alvin E.

395685, G06F 944

Patent

active

057219290

ABSTRACT:
A system for extending the capabilities of a programming language, particularly a 4GL, wherein an extension of the programming language is created as a class within the C++ programming language. The extension class must also include code to register the extension class with the programming language, so that the programming language execution engine can call the functions of the class. When the extension function receives control, it receives any parameters defined within the programming language statement that called the extension function, and it can return a value to the programming language. The extension function may call other functions of the programming language, and it may call any other types of functions, therefore, the extension function has complete control over its domain and scope.

REFERENCES:
patent: 5497491 (1996-03-01), Mitchell et al.
patent: 5515536 (1996-05-01), Corbett et al.
"Customizing C++ to Improve the Reusability of Class Libraries", Kojima et al. IEEE 1994, pp. 64-73.
"Class Modules in Object Oriented Software Development", Zhu, COMPSAC 1991, pp. 529-530.
"Object Exchange Service for an Object-Oriented Database System", Pathak et al., Data Engg., 1989 5th Int'l Conf., pp. 27-34.
"A Concurrent Programming Environment for Memory-Mapped Persistent Object Systems", Fu et al., 1993 Int'l Conf. on Comp. Software and Applications, pp. 291-297.

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