>execute this two lines code ...
>
>

>#DEFINE X .X
>
>* [X]
>

>
>
>Explain:
>When a point exists into the #defined string,
>the preprocessor C++ code doesn't move the string pointer into the next correct position,
>and then the C++ loop go into a infinite fill process...

This does not crash

#define ONE		1
#define XX		XX  + ONE

?[XX]

Whilst this one does

#define ONE		1
#define XX		ONE + XX

?[XX]