User defined data types in APL2

Author:

Benkard J. P.1,Brown J. A.2

Affiliation:

1. IBM East Fishkill, Route 52, Hopewell Junction, New York 12533

2. IBM Santa Teresa Lab J98/B25, 555 Bailey Ave., P.O. Box 49023, San Jose, Calif.

Abstract

This paper is an investigation of possible definitions of new enclose-like functions, their impact on the APL 2 language, and their usefulness in applications. Several variants of enclose have been proposed over the years that range from data structure primitives to data type producing primitives. Operator analogues of enclose can be used to create functions that pervade structures and types in different ways. Defined operators can implement type hierarchy and respond to fill items in prototype execution by referring to tables of type characteristics.

Publisher

Association for Computing Machinery (ACM)

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Is APL2 a good programming language?;ACM SIGAPL APL Quote Quad;1995-06-08

2. Nested arrays and operators;ACM SIGAPL APL Quote Quad;1992-07-15

3. Extending structure, type, and expression in APL2;ACM SIGAPL APL Quote Quad;1991-07

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