header file

They are randomly generated by DevStudio to ensure that your class is uniquely defined. In manual implementations it is common to just do something like:

#ifndef H_CLASSNAME_H
#define H_CLASSNAME_H

//code goes here

#endif //H_CLASSNAME_H

Thanks a lot

Hi!

There''s a small utility called "guidgen.exe" out there.
This microsoft product creates a unique ID for several types of need:

- Unique registry entries
- DirectX-GUIDs
- Headerfile heads as explained at the top of this thread
- and some more i think...

Microsoft guaranties the uniquity (does this word exist?) of the generated ID and there will be no second on this world.

Just go and find the software on the net. Sometimes it''s even integrated to Visual Studio (.Net) I think. Go and search your HD for guidgen.exe, you may be lucky

But...! Why don''t you just use

#pragma once

This should do its job for Visual C++!

cu,
Lord

One small warning about #pragma once. I read somewhere that not all compilers support it (though all the ones I''ve used do). In fact, I think all of the #pragma directives are compiler dependent (someone please correct me on this if I''m wrong). GCC will complain that "#pragma once is obsolete", but it works anyway.

/*=========================================*/
/* Chem0sh */
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quote:

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Original post by Chem0sh
In fact, I think all of the #pragma directives are compiler dependent (someone please correct me on this if I''m wrong).

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That''s the very definition of a #pragma directive
A compiler is supposed to ignore #pragma which do not make sense to it.

Documents [ GDNet | MSDN | STL | OpenGL | Formats | RTFM | Asking Smart Questions ]
C++ Stuff [ MinGW | Loki | SDL | Boost. | STLport | FLTK | ACCU Recommended Books ]

Oh, yeah! I forgot I knew that. I remember reading that somewhere now. Thanks, Fruny!

/*=========================================*/
/* Chem0sh */
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quote:

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Original post by Lord Skeletor
uniquity (does this word exist?)

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Uniqueness. Aber du hast besser getan als meistens Amerikaner mit Deutsche.