namespace range
{
    typedef here = (int current, int end, int step);
    
    bool next_element(var range^ r, var int^ result)
    {
        if r^.current > r^.end return :false;
        
        result^ = r^.current;
        
        r^.current += r^.step;
        return :true;
    }
}


() test() {
    range r = (10, 20, 1);
    
    for int i in r {
        //printnum("%d ", i);
    }
    
    for int i in (0, 15, 3) as range {
        //printnum("%d ", i);
    }
}

// For trying it out
/*
linkname "printf" () printnum(byte^ s, int num);
linkname "main" int main() {
    test();
    return 0;
}
*/