Download e-book for kindle: Abstract data types: specifications, implementations, and by Nell Dale, Henry M. Walker

By Nell Dale, Henry M. Walker

ISBN-10: 0669400009

ISBN-13: 9780669400007

This article expands the normal direction concentration to check not just the constitution of an information item, but additionally its variety. This broader concentration calls for a new paradigm for classifying facts varieties. inside of every one type, the diversified ADTs are awarded utilizing axiomatic requisites. quite a few implementation choices are mentioned for every ADT and algorithms are written in a pseudo-code in keeping with the Pascal-Modula- 2-Ada version. subsequent, the Big-O complexity of every implementation is mentioned and every ADT is utilized in an program. vintage algorithms offer purposes for many of the ADTs; implementation of a formerly outlined ADT is the applying for others. The result's a transparent, logical presentation that offers scholars a superb, useful beginning in present software program engineering rules. purposes are integrated to illustrate how the ADTs are utilized in problem-solving. confirmed pedagogical beneficial properties similar to specific examples, highlighted definitions, various illustrations, and workouts educate problem-solving abilities.

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Extra info for Abstract data types: specifications, implementations, and applications

Example text

Because our specification actually defines a collection of stacks, one for every type that ItemType can be, we are defining an abstract data type. Any instance of this abstract data type would be a stack of a specified ItemType. The interface of an abstract data type is always in terms of types, and the axioms are always in terms of instances of these types. It is this property that allows the specification to define an abstract data type. Also, we must emphasize that there is nothing in this definition that gives a clue as to the implementation.

Traditionally, algorithms have been written in a structured, procedure-oriented language, such as Pascal, Modula-2, or Ada. Any of these languages (or other procedure-based languages that support pointers and recursion) should be quite adequate for implementing the algorithms that we present. Such procedural languages share many common characteristics, so algorithms in this text are written in a composite language or pseudocode that combines many elements of Pascal, Modula-2, and Ada. We have tried to avoid idiosyncrasies of any of these languages, however.

Published simultaneously in Canada. Printed in the United States of America. D. W. Page vii Preface Fresh, Modern Approach This book takes a fresh, modern approach to the organization and manipulation of data by computer systems. This approach is innovative in several important ways: 1. Abstract data types (ADTs) are organized following a top-down perspective, based upon a user's view of data. 2. As the book's title suggests, each ADT is explored from three perspectives: specification, implementation, and application.

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Abstract data types: specifications, implementations, and applications by Nell Dale, Henry M. Walker


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