setjmp

   Provides a way to transfer control from a nested series of
   function invocations back to a predefined point without returning
   normally. It does not use a series of return statements. The
   setjmp function saves the context of the calling function in an
   environment buffer.

   Format

     #include  <setjmp.h>

     int setjmp  (jmp_buf env);
 

Additional information available:

Argument        Description     Restrictions    Return_Values