Concepts of Programming Languages (11th Edition)
Concepts of Programming Languages (11th Edition)
11th Edition
ISBN: 9780133943023
Author: Robert W. Sebesta
Publisher: PEARSON
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Chapter 5, Problem 2PE
Program Plan Intro

Static scoping:

This means that the scope of a variable can be determined prior to the execution. So that, compiler can determines the type of every variable in the source code. It provides a method of non-local access of a variable.

Example: ALGOL, Ada, C, and Pascal are statically scoped.

Dynamic scoping:

This means that the scope of a variable is dynamic. That is, it refers to change. The call stack can be different from every time a current function is called, and so the function might have different variables depending on where it is called from.

Example: Common LISP supports dynamic scoping.

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