Index Catalog // ScholarsArchive@OSU

Creator:: Sandberg, David W.
Abstract:: Three different approaches to type checking have been taken in object-oriented programming languages. Smalltalk-80 uses run-time type checking. C++ uses subtypes. A third alternative is to use parameterized types. We examine the difficulties of programming in an object-oriented fashion with compile-time type checking and argue that parameterized types are better...
Resource Type:: Technical Report
Full Text:: - ORIENTED PROGRAMMING LANGUAGES David W. Sandberg Department of Computer Science Oregon State

Creator:: Sandberg, David W.
Abstract:: Using Smalltalk-80, programmers can produce prototypes much faster than with C or Pascal. What techniques do Smalltalk-80 programmers use to produce these prototypes? What is special about Smalltalk-80 that enables them to uses these techniques? Can these techniques be used with conventional languages such as C? In an attempt to...
Resource Type:: Technical Report
Full Text:: Programming* David W. Sandberg Computer Science Department Oregon State University Corvallis, Oregon

Creator:: Sandberg, David W.
Resource Type:: Technical Report
Full Text:: Graphical Programming Language for Robotics David W. Sandberg Department of Computer Science Oregon

Creator:: Sandberg, David W.
Abstract:: Several years ago we began development of an object-based programming language and environment which we call X2. We implemented X2 using a virtual machine similar to Smalltalk-80 implementations, but X2 does no message look-up. The implementation differs from most Smalltalk-80 systems in that objects are paged and in the ability...
Resource Type:: Technical Report
Full Text:: OBJECT-ORIENTED VIRTUAL MACHINE David W. Sandberg Department of Computer Science Oregon State

Creator:: Sandberg, David W.
Abstract:: The term object-oriented is defined. This definition is then related to message-passing, inheritance, polymorphism, data abstraction, generics, and overloading.
Resource Type:: Technical Report
Full Text:: Programming? David W. Sandberg Department of Computer Science Oregon State University Corvallis, Oregon

Creator:: Sandberg, David W.
Abstract:: Smalltalk-80 obtains some of its expressive power from arranging classes in a hierarchy. Inheritance is an important aspect of this hierarchy. An alternative organization of classes is proposed that emphasizes description instead of inheritance. This alternative can be used with compile-time type checking and retains the important characteristics of Smalltalk's...
Resource Type:: Technical Report
Full Text:: David Sandberg Department of Computer Science Oregon State University Corvallis, Oregon l 7 l

Creator:: Sandberg, David W.
Abstract:: A method for implementing parameterized types is given. Two simplifying restrictions are assumed: types are only parameterized with other types, and assignment is like that of SNOBOL, CLU, and Smalltalk. An algorithm for type checking that handles parameterized types and overloading is presented .
Resource Type:: Technical Report
Full Text:: Parameterized Types David Sandberg Department of Computer Science Oregon State University Corvallis

Creator:: Sandberg, David W.
Abstract:: The design of an experimental object-based programming language is discussed. The language is intended for investigating techniques for organization of programs.
Resource Type:: Technical Report
Full Text:: Programming Language X-2 David W. Sandberg Department of Computer Science Oregon State University

Creator:: Judge, David V. and Rudd, W. G.
Abstract:: Within a decade, the amount of raw data acquired each day by satellite -based instrumentation will exceed 1 terabyte (10¹² bytes). Virtually all quantitative data acquired about the Earth is useful [10]. Processing the raw data into useful information will be an enormous task . Much of the current data...
Resource Type:: Technical Report
Full Text:: David V. Judge W.G. Rudd OACIS & Department of Computer Science Oregon State University

Creator:: Rudd, W. G., Lewis, Ted G., El-Rewi, Hesham, Judge, David V., Handley, Scott, and Kim, Inkyu
Resource Type:: Technical Report
Full Text:: -Rewini David V. Judge Scott Handley Inkyu Kirn Oregon Advanced Computing Institute (OACIS

ScholarsArchive@OSU