Click above to get retro games delivered to your door ever month!

setjmp
======

Syntax
------

     #include <setjmp.h>
     
     int setjmp(jmp_buf j);

Description
-----------

This function stores the complete CPU state into J.  This information
is complete enough that `longjmp' (longjmp:.) can return the   
program to that state.  It is also complete enough to implement
coroutines.

Return Value
------------

This function will return zero if it is returning from it's own call.
If longjmp is used to restore the state, it will return whatever value
was passed to longjmp, except if zero is passed to longjmp it will
return one.

Example
-------

     jmp_buf j;
     if (setjmp(j))
       return;
     do_something();
     longjmp(j);