- NAME
-
setjmp - save stack context for non-local goto.
- SYNOPSIS
#include <setjmp.h>
int setjmp(jmp_buf envbuf);- DESCRIPTION
-
setjmp() and longjmp() are useful for dealing with errors and interrupts encountered in a low-level subroutine of a program. setjmp() saves the stack context/environment in env for later use by longjmp(). The stack context will be invalidated if the function which called setjmp() returns.
- RETURN VALUE
-
It returns the value 0 if returning directly and non-zero when returning from longjmp() using the saved context.
- SEE ALSO
-
longjmp
- EXAMPLE
link:src/setjmp.c[role=include]- OUTPUT
$ gcc -Wall setjmp.c $ ./a.out Calling function. Reached this point from a longjmp with value=5.