Concepts, Techniques, and Models of Computer Programming - Chapter 0 doc

... 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 ... 499 7.2.2 Semanticsoftheexample 500 7.2.3 Definingclasses 501 7.2.4 Initializing attributes 503 7.2.5 First-classmessages 504 7.2.6 First-class attributes 507 7.2.7 Program...

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... 1*5.Thisgives5, then 20, then 60, then1 20, and finally 1 20. 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 ... X} end end fun {Improve Guess X} (Guess + X/Guess) / 2 .0 end fun {GoodEnough Guess X} {Abs X-Guess*Guess}/X < 0. 000 01 end fun {Abs X} if X< ;0...

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... machine: C2={Take tickfile} for I in 1 100 000 do {C2 get(_)} end {Show done} This does 100 000 calls to C2. Try doing this for both mobile and stationary objects and measure the difference in execution ... object: C={NewActive Coder init( 100 )} {Offer C tickfile} Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. 734 Distributed Programming • The third scenario...

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... 62667 00 4 90 71596 82643 81621 46859 29638 95217 59999 32299 15 608 94146 39761 56518 28625 36979 208 27 22375 82511 852 10 91686 400 00 000 00 000 00 000 00 000 00 Copyright c  200 1-3 by P. Van Roy and ... result: 1 11 101 1111 100 01 1 100 11 101 0 101 Some other functions are given in the exercises. 1. 10 Concurrency We would like our program to have several independ...

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... 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 by P. Van Roy and S. Haridi. ... 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...

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... threads, and so forth recursively, is handled in Section 5.5.3. Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. 4.3 Streams 261 Xs={Generate 0 1 500 00} S={Sum Xs 0} ConsumerProducer Xs ... an expression: declare X in X=thread 10* 10 end + 100 * 100 {Browse X} This is just syntactic sugar for: declare X in local Y in thread Y= 10* 10 end X=Y+ 100 * 100 en...

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... process. -module(areaserver). -export([start /0, loop /0] ). start() -& gt; spawn(areaserver, loop, []). loop() -& gt; receive {From, Shape} -& gt; From!area(Shape), loop() end. Copyright c  200 1-3 by ... delta(D)} thread X1=X+D Y=X1*X1+2 .0* X1+2 .0 end [] serverdelta(?S) then S =0. 01 end end Here is the client: proc {ClientProc Msg} case Msg of work(Z) then Y in {Send Serve...

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... Algol- 60 and structured programming [46, 45, 1 30] , 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 ... elements of an array: Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. 415 A problem of terminology Stateless and stateful programming are often c...

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... triangle and a circle: declare F1={New CompositeFigure init} {F1 add({New Line init(Can 50 50 1 50 50) })} {F1 add({New Line init(Can 1 50 50 100 125)})} {F1 add({New Line init(Can 100 125 50 50) })} {F1 ... values, and the dynamic creation of classes. We start with forwarding since it is the simplest. Copyright c  200 1-3 by P. Van Roy and S. Haridi. All rights reserved. 5 4...

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... Displays 505 0 for I in 1 100 0 do thread {Mix} end end {Browse {Sum}} % Still displays 505 0 505 0 is the sum of the integers from 1 to 100 . You can check that the values of individual cells are well and ... the tuple’s label and the entry is a queue of tuples with that label. The capitalized methods EnsurePresent and Cleanup are private to the TupleSpace class and Copyright...

Ngày tải lên: 14/08/2014, 10:22