C++ Plus Data Structures, 3rd Edition (2003)

C++ Plus Data Structures

Descripción

H istorically, has science broadened departments. a course considerably. on Over data the structures The lasttopic 18 years, has of been data however, structures a mainstay the focus has of now most of this been computer course sub- sumed under the broader topic of abstract data types (ADTs)—the study of classes of objects whose logical behavior is defined by a set of values and a set of operations. The term abstract data type describes a comprehensive collection of data values and operations; the term data structures refers to the study of data and how to repre- sent data objects within a program; that is, the implementation of structured rela- tionships. The shift in emphasis is representative of the move towards more abstraction in computer science education. We now are interested in the study of the abstract properties of classes of data objects in addition to how the objects might be represented in a program. Johannes J. Martin put it succinctly: “. . . depending on the point of view, a data object is characterized by its type (for the user) or by its structure (for the implementor).”1

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