#include <stdio.h>
#include <windows.h>

int debugged;

LONG WINAPI Handler(struct _EXCEPTION_POINTERS *pointer)
{
    printf ("NOT DEBUGGED\n");
    debugged = 0;
    return EXCEPTION_CONTINUE_EXECUTION;
}

int main ()
{
    int a = 0;
    int b = 1;
    debugged = 1;

    SetUnhandledExceptionFilter(Handler);

    int c = b/a;

continue:

    if (debugged)
        return 1;

    return 0;
}