- NAME
-
longjmp - non-local jump to a saved stack context.
- SYNOPSIS
#include <setjmp.h>
void longjmp(jmp_buf env, int val);- DESCRIPTION
-
longjmp() and setjmp() are useful for dealing with errors and interrupts encountered in a low-level subroutine of a program. longjmp() restores the environment saved by the last call of setjmp() with the corresponding env argument. After longjmp() is completed, program execution continues as if the corresponding call of setjmp() had just returned the value val. longjmp() cannot cause 0 to be returned. If longjmp is invoked with a second argument of 0, 1 will be returned instead.
- RETURN VALUE
-
This function never returns.
- SEE ALSO
-
setjmp
- EXAMPLE
link:src/longjmp.c[role=include]- OUTPUT
$ gcc -Wall longjmp.c $ ./a.out Calling function. Reached this point from a longjmp with value=5.