Concepts, Techniques, and Models of Computer Programming - Chapter 3 docx

... 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 is Y1#Y2, flatten of Xr is Y3#Y4 ,and equate Y2 and Y3 ... declarative model and situate it with respect to other models. Copyright c  200 1 -3 by P. Van Roy and S. Haridi. All rights reserved. 3. 4 Programming with recursion...

Ngày tải lên: 14/08/2014, 10:22

... recommend the work on the E language and its secure implementa- tion [1 23, 1 83] . Copyright c  200 1 -3 by P. Van Roy and S. Haridi. All rights reserved. 714 Distributed Programming • Some resources are ... of resources, dependencies between processes) and the performance constraints (network bandwidth and latency, machine memory and speed). The large-scale structure of an...

Ngày tải lên: 14/08/2014, 10:22

... Programmingwithrecursion 130 3. 4.1 Typenotation 131 3. 4.2 Programmingwithlists 132 3. 4 .3 Accumulators 142 3. 4.4 Differencelists 144 3. 4.5 Queues 149 3. 4.6 Trees 1 53 3.4.7 Drawingtrees 161 3. 4.8 Parsing 1 63 3.5 Timeandspaceefficiency ... 221 3. 9.2 Exampleofprogramdesign 222 3. 9 .3 Softwarecomponents 2 23 3.9.4 Exampleofastandaloneprogram 228 3. 10Exercises 233 4 Declar...

Ngày tải lên: 14/08/2014, 10:22

... 81699 238 85 62667 00490 71596 826 43 81621 46859 29 638 95217 59999 32 299 15608 94146 39 761 56518 28625 36 979 20827 2 237 5 82511 85210 91686 40000 00000 00000 00000 00000 Copyright c  200 1 -3 by P. ... in Copyright c  200 1 -3 by P. Van Roy and S. Haridi. All rights reserved. 1.6 Correctness 11 The technique of first writing the main function and filling in the blanks af- te...

Ngày tải lên: 14/08/2014, 10:22

... 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...

Ngày tải lên: 14/08/2014, 10:22

... 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...

Ngày tải lên: 14/08/2014, 10:22

... 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 ... called with a list of procedures, each of which adds X to Copyright c  200 1 -3 by P. Van Roy and S. Haridi. All rights reserved. 35 8 Message-Passing Concurrency In the m...

Ngày tải lên: 14/08/2014, 10:22

... 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 called declarative and imperative programming, ... 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 Ch...

Ngày tải lên: 14/08/2014, 10:22

... objects and by using encapsula- tion without state are often ignored. Chapters 3 and 4 explain well how to use these two ideas. The present chapter follows the object-oriented philosophy and emphasizes ... definition de- pends on the type of data that is sorted. Other classes can inherit from GenericSort Copyright c  200 1 -3 by P. Van Roy and S. Haridi. All rights reserved. 5...

Ngày tải lên: 14/08/2014, 10:22

... commit” is of this type. This style of reasoning can be given a formal syntax and semantics. This results in a variety of logic called temporal logic. Copyright c  200 1 -3 by P. Van Roy and S. Haridi. ... 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