Chapter 17. Unusual Control Structures

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Contents

• Multiple Returns from a Routine page 391

• Recursion page 393

• goto page 398

• Perspective on Unusual Control Structures page 408

Related Topics

• General control issues: Chapter 19

• Straight-line code: Chapter 14

• Code with conditionals: Chapter 15

• Code with loops: Chapter 16

• Exception handling: Section 8.4

Several control constructs exist in a hazy twilight zone somewhere between being leading-edge and being discredited and disproved often in both places at the same time! These constructs aren't available in all languages but can be useful when used with care in those languages that do offer them.