Control Structures and Execution Control

Abstract

The aims of this chapter are to introduce:

• Selection among various courses of action as part of the algorithm.

• The concepts and statements in Fortran needed to support the above:

  • execution control.

  • executable constructs containing blocks.

    • the associate construct.

    • the block construct.

    • the do construct.

    • the if construct.

    • the select case construct.

    • the select rank construct.

    • the select type construct.

  • Logical expressions and logical operators.

  • One or more blocks of statements.

Summarizing: as a slow-witted human being I have a very small head and I had better learn to live with it and to respect my limitations and give them full credit, rather than try to ignore them, for the latter vain effort will be punished by failure

Edsger W. Dijkstra, Structured Programming