Scope, Functions and Storage Management Mitchell Chapter 7 Implementing Programming Languages • In this chapter, storage management for block-structured languages is described by the run-time data structures that are used in a simple reference implementation. • Association between names in programs and memory locations is a key aspect. – Scope: allows two syntactically identical names […]
Simple Data CSI 3120 Amy Felty University of Ottawa slides copyright 2017, 2018 David Walker, Amy Felty permission granted to reuse these slides for non-commercial educational purposes 1 What is the single most important mathematical concept ever developed in human history? 2 What is the single most important mathematical concept ever developed in human history?
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Mutation CSI 3120 Amy Felty University of Ottawa slides copyright 2017, 2018 David Walker, Amy Felty permission granted to reuse these slides for non-commercial educational purposes mutable set immutable set Reasoning about Mutable State is Hard insert i s1; f x; member i s1 let s1 = insert i s0 in f x; member i
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Concurrency Mitchell Chapter 14 Concurrent Programs Two or more sequences of events occur in parallel • Multiprogramming • Multiprocessors – Twoormoreprocessorsmay – Asinglecomputerruns several programs at the same time be connected – Eachprogramproceeds sequentially – Programsononeprocessor communicatewithprograms on another – Actionsofoneprogrammay occur between two steps of another – Actionsmayhappen simultaneously process, thread, task: sequential program
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Concepts in Object-Oriented Languages Mitchell Chapter 10 History – Object concept used in simulation 1960’s 1970’s 1980’s 1990’s • Simula • Smalltalk – Object-oriented design, systems • C++ – Adapted Simula ideas to C • Java – Distributed programming, internet 2 Varieties of Object-Oriented Languages • class-basedlanguages – behavior of object determined by its class
Thinking Inductively CSI 3120 Amy Felty University of Ottawa slides copyright 2017, 2018 David Walker, Amy Felty permission granted to reuse these slides for non-commercial educational purposes A value v has type t option if it is either: – the value None, or – a value Some v’, and v’ has type t Options Options
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Modules and Abstract Data Types CSI 3120 Amy Felty University of Ottawa slides copyright 2017, 2018 David Walker, Amy Felty permission granted to reuse these slides for non-commercial educational purposes The Reality of Development We rarely know the right algorithms or the right data structures when we start a design project. – When implementing a
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Assignment 2 (Due Date: 23:55 pm, Oct. 30, 2020) Note: (1) Each question has two weights, the first is for CSC 463 students, and the second is for CSC 569 students. (2) You should submit your solutions in One file in pdf format to the Connex. [60%, 40%] (I) Assume that a research group tries
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Fundamentals Mitchell Chapter 4 Syntax and Semantics of Programs “…theoretical frameworks have had an impact on the design of programming languages and can be used to identify problem areas in programming languages.” • Syntax – Thesymbolsusedtowriteaprogram • Semantics – Theactionsthatoccurwhenaprogramisexecuted • Programming language implementation – Syntax®Semantics – Transformprogramsyntaxintomachineinstructionsthatcanbe executed to cause the correct sequence of
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Automata, Computability and Complexity: Theory and Applications Elaine Rich Originally published in 2007 by Pearson Education, Inc. © Elaine Rich With minor revisions, July, 2019. Table of Contents PREFACE ………………………………………………………………………………………………………………………………..VIII ACKNOWLEDGEMENTS…………………………………………………………………………………………………………….XI CREDITS…………………………………………………………………………………………………………………………………..XII PARTI: INTRODUCTION…………………………………………………………………………………………………………….1 1 2 3 4 Why Study the Theory of Computation? ……………………………………………………………………………………………2 1.1 The Shelf Life of Programming Tools ………………………………………………………………………………………………2 1.2 Applications