Node:Non-Local Exits, Next:Signal Handling, Previous:Resource Usage And Limitation, Up:Top

Non-Local Exits

Sometimes when your program detects an unusual situation inside a deeply nested set of function calls, you would like to be able to immediately return to an outer level of control. This section describes how you can do such non-local exits using the setjmp and longjmp functions.

• Intro: When and how to use these facilities.
• Details: Functions for non-local exits.
• Non-Local Exits and Signals: Portability issues.
• System V contexts: Complete context control a la System V.