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How to use setjump (remember current position) and longjump (go back to position remembered) in C

1 Answer

0 votes
#include <stdio.h>
#include <setjmp.h>

jmp_buf jbuf;

void function()
{
    printf("function()\n");
 
    // Jump to: setjmp(jbuf) in main()
    longjmp(jbuf, 1);
 
    printf("END function()\n");
}
 
int main()
{
    if (setjmp(jbuf))
        printf("setjmp(jbuf)\n");
    else
    {
        printf("else\n");
        function();
    }
    return 0;
}

/*
run:

else
function()
setjmp(jbuf)

*/

 




answered May 18, 2018 by avibootz
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