kamistrike@gmx.de wrote:

> Furthermore headerfiles are often intersected with some additional pre-
> processor directives:
>
> MyClass.h:
>
> #IFNDEF MYCLASS_H
#ifndef MYCLASS_H
> #DEFINE MYCLASS_H
#define MYCLASS_H
>
> class MyClass
> {
> public:
> int Foo()
> bool Bar()
>
> }
>
> #ENDIF
#endif
>

#ifndef, #define, and #endif are *LOWER CASE*

Their usage in this case is known as "include guards". Google for it,
or search this group, or both.