Concepts, Techniques, and Models of Computer Programming - Chapter 1 pps

... result: 1 11 1 01 111 1 10 0 01 110 011 10 1 010 1 Some other functions are given in the exercises. 1. 10 Concurrency We would like our program to have several independent activities, each of which executes ... a huge number: 933 26 215 44394 415 26 816 99 23885 62667 00490 715 96 82643 816 21 46859 29638 95 217 59999 32299 15 608 9 414 6 397 61 56 518 28625 36979 20827 22375...

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... {Gate X1 X2 Xn Y1 Y2 Ym} proc {P S1 S2 Sn U1 U2 Um} case S1#S2# #Sn of (X1|T1)#(X2|T2)# #(Xn|Tn) then Y1 Y2 Ym V1 V2 Vm in {GateStep X1 X2 Xn Y1 Y2 Ym} U1=Y1|V1 U2=Y2|V2 Um=Ym|Vm {P T1 T2 Tn V1 ... for concurrent object-oriented programming. Chapter 11 shows how to do distribut- ed programming, i.e., programming a set of computers that are connected by a network. All four chapter...

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... solutions: nil#B#B| [X1]#B#(X1|B)| [X1 X2]#B#(X1|X2|B)| Copyright c  200 1- 3 by P. Van Roy and S. Haridi. All rights reserved. 674 Relational Programming tive proof of this [19 4, 18 8]. The successful series of ... ?X} X= (10 *{Digit}+{Digit})* (10 *{Digit}+{Digit}) % Generate (X>0)=true % Test 1 (X> =10 00)=true % Test 2 (X div 10 00) mod 10 = (X div 1) mod 10 % Tes...

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... instead of programming in models. We start from the declarative programming techniques of Chapter 3 and add state and concurrency ex- actly where it is needed. This is a practical example of combining ... div 4)==0 then 29 else 28 end 31 30 31 30 31 31 30 31 30 31] T.mon +1} Second, we calculate the number of blank spots in the grid before the calendar day with numbe...

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... 13 1. 9 Higher-orderprogramming 15 1. 10Concurrency 16 1. 11Dataflow 17 1. 12State 18 1. 13Objects 19 1. 14Classes 20 1. 15Nondeterminismandtime 21 1 .16 Atomicity 23 1. 17Wheredowegofromhere 24 1. 18Exercises ... xiii 11 .8.4Activefaulttolerance 749 11 .9Security 749 11 .10 Buildingapplications 7 51 11. 10.1Centralizedfirst,distributedlater 7 51 11. 10.2Handlingpartialfail...

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... bound to a partial value. Here is an example with both free and bound occurrences: local Arg1 Arg2 in Arg1 =11 1 *11 1 Arg2=999*999 Res=Arg1+Arg2 end In this statement, all variable identifiers are ... 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 Ro...

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... call: [( {Fact N1 R1}, {N1 → 4, R1 → r 1 , }), ( R=N*R1, {R → r 0 , R1 → r 1 N → 5, })] • At the second call: [( {Fact N1 R1}, {N1 → 3, R1 → r 2 , }), ( R=N*R1, {R → r 1 , R1 → r 2 , N → 4, }), ( R=N*R1, ... r 0 , R1 → r 1 , N → 5, })] • At the third call: [( {Fact N1 R1}, {N1 → 2, R1 → r 3 , }), ( R=N*R1, {R → r 2 , R1 → r 3 , N → 3, }), ( R=N*R1, {R → r 1 , R1 → r 2 , N → 4, }), (...

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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 .14 159*Radius*Radius; area({triangle, A, B, C}) -& g...

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... Algol-60 and structured programming [46, 45, 13 0], which led to Simula-67 and object-oriented program- ming [13 7, 15 2]. 2 This book sticks to the traditional usage of declarative as stateless and ... Memorandum, August 8, 19 43, Winston Churchill (18 74 19 65) Programming in the large is programming by a team of people. It involves all aspects of software development t...

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... composite figure F1 containing a triangle and a circle: declare F1={New CompositeFigure init} {F1 add({New Line init(Can 50 50 15 0 50)})} {F1 add({New Line init(Can 15 0 50 10 0 12 5)})} {F1 add({New Line ... 60 [13 0, 13 7, 15 2]. Simula 67 was much ahead of its time and had little immediate influence. Much more influential in making object-oriented program- ming popular was Smallt...

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