toddlipcon/tictactoe — pull request #2 by raywill (2013-05-20 04:17:47+00:00)
Title: Update callbacks.c

```c
#include

int main()
{
int i = 0;
if (i == 1)
// printf("%d", i);
printf("%d\n", i); // expect always output i
}
```

Code above output nothing.