Concepts of Programming Languages

460 Chapter 10 Implementing Subprograms from the reference to the declaration. Fortunately, in practice, references to distant n ...

10.5 Blocks 461 A block is specified in the C-based languages as a compound statement that begins with one or more data definiti ...

462 Chapter 10 Implementing Subprograms 10.6 Implementing Dynamic Scoping There are at least two distinct ways in which local va ...

10.6 Implementing Dynamic Scoping 463 activation record instances in the reverse of the order in which they were acti- vated. Th ...

464 Chapter 10 Implementing Subprograms There are two important differences between the deep-access method for nonlocal access i ...

10.6 Implementing Dynamic Scoping 465 name at a given time, a very different approach can be taken. One variation of shallow acc ...

466 Chapter 10 Implementing Subprograms activation record of the subprogram that created the replacement variable. This is a sta ...

Problem Set 467 What is the difference between an activation record and an activation record instance? Why are the return addre ...

468 Chapter 10 Implementing Subprograms begin -- of A ... C; ... end; -- of A begin -- of Bigsub ... A; ... end; -- of Bigsub 2. ...

Problem Set 469 procedure Bigsub is procedure A(Flag : Boolean) is procedure B is ... A(false); end; -- of B begin -- of A if fl ...

470 Chapter 10 Implementing Subprograms void fun3() { float d; ... 1 } void main() { char e, f, g; ... } The calling sequence fo ...

Programming Exercises 471 If a compiler uses the static chain approach to implementing blocks, which of the entries in the acti ...

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473 11.1 The Concept of Abstraction 11.2 Introduction to Data Abstraction 11.3 Design Issues for Abstract Data Types 11.4 Langua ...

474 Chapter 11 Abstract Data Types and Encapsulation Constructs I n this chapter, we explore programming language constructs tha ...

11.2 Introduction to Data Abstraction 475 The two fundamental kinds of abstraction in contemporary programming languages are pro ...

476 Chapter 11 Abstract Data Types and Encapsulation Constructs Object-oriented programming, which is described in Chapter 12, i ...

11.2 Introduction to Data Abstraction 477 There are several benefits of information hiding. One of these is increased reliabilit ...

478 Chapter 11 Abstract Data Types and Encapsulation Constructs program’s modularity and it is a clear separation of design and ...

11.4 Language Examples 479 name must have external visibility, the type representation must be hidden. The type representation a ...