Concepts, Techniques, and Models of Computer Programming - Chapter 12 potx

... called propagate- and- search or propagate -and- distribute. The chapter is structured as follows: 1 This chapter was co-authored with Rapha¨el Collet. Copyright c  200 1-3 by P. Van Roy and S. Haridi. ... constraint pro- gramming support of Mozart consists of several dozen operations. All of these Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. 778...

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... Concurrent ML [158] and Concurrent Haskell [149, 147]). Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. Concepts, Techniques, and Models of Computer Programming PETER VAN ... appropriate. Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. x CONTENTS 7.5 Relationtoothercomputationmodels 543 7.5.1 Object-basedandcomponent-base...

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... 91686 40000 00000 00000 00000 00000 Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. 1.4 Lists 7 12 12 12 12 12 12 12 5 | L = [5 6 7 8] L = L.2 = L.1 = 5 L.2 = [6 7 8] | 6| 7| 8 | 6| 7| 8 ... Wizard of Oz, L. Frank Baum (1856–1919) Programming is telling a computer how it should do its job. This chapter gives a gentle, hands-on introduction to many...

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... of many other techniques. This book focuses on three in particu- lar: object-oriented programming, graphical user interface (GUI) design, and component-based programming. In object-oriented programming, ... with single-shot channels. Chapters 4 and 5 show other types of channels (with sequences of messages) and do concurrent composition of processes. Copyright c  200 1-3 b...

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... 1*5.Thisgives5, then 20,then60,then120, and finally 120 . The iterative definition of factorial that does things this way is: Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. 128 Declarative Programming ... instead of standard lists: • Flatten of nil is X#X (empty difference list). • Flatten of X|Xr where X is a nested list, is Y1#Y4 where flatten of X i...

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... introduces the lazy concurrent model and gives some of the most important programming techniques, including lazy streams and list compre- hensions. • Soft real-time programming. Section 4.6 explains ... roots of declarative concurrency. Concurrency is also a key part of three other chapters. Chapter 5 extends the eager model of the present chapter with a simple kind of...

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... in the larger context of component-based programming. Because of message-passing concurrency we no longer have the limitations of the synchronous “lock-step” execution of Chapter 4. We first introduce ... tuples: area({square, Side}) -& gt; Side*Side; area({rectangle, X, Y}) -& gt; X*Y; area({circle, Radius}) -& gt; 3.14159*Radius*Radius; area({triangle, A, B, C}) -& gt;...

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... Algol-60 and structured programming [46, 45, 130], which led to Simula-67 and object-oriented program- ming [137, 152]. 2 This book sticks to the traditional usage of declarative as stateless and ... the operations of the abstract data type. This idea is at the heart of object-oriented programming, a powerful programming style that is elaborated in Chapter 7. The present c...

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... The first way, often-used in object-oriented programming, uses inheritance. The second way uses higher-order programming. We will see that the first way is just a syntactic variation of the second. ... as be- ing an object and to mix the notions of state and encapsulation. The advantages to be gained by considering other entities than objects and by using encapsula- tion without st...

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... paradigms of message-passing and shared-state concurrency. At the time of writing, we know of no books that deal with the third concurrent paradigm of declarative concurrency. Concurrent Programming ... because of the single- assignment property of dataflow variables. An important detail: the arith- metic operations N-1 and N+1 must be done after the exchange (why?). We discu...

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