setjmp/longjmp

[kachofool]

How do I use setjmp/longjmp with Ubuntu? (8.04)... I tried man'ing setjmp/longjmp to no avail. I tried to compile the following program but it failed to execute...



#include <iostream>
#include <setjmp.h>

int main(int argc, char** argv)
{
jmp_buf env;
int i;

i = setjmp(env);
printf("i = %d\n", i);

if (i != 0) exit(0);

longjmp(env, 2);
printf("Does this line get printed?\n");

}


Thanks!

[supirman]

You're using c++ headers (iostream), but using printf, which is in stdio.h. Also, exit() is from stdlib.h.

Other than that, it's running fine here. What do you mean by it 'fails to execute'?


#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>

int main(int argc, char** argv)
{
jmp_buf env;
int i;

i = setjmp(env);
printf("i = %d\n", i);

if (i != 0) exit(0);

longjmp(env, 2);
printf("Does this line get printed?\n");

}




##(2111:Mon,13 Oct 08$)> gcc setjmp.c

##(2111:Mon,13 Oct 08$)> ./a.out
i = 0
i = 2