Define Header File

[HLMetroid]

I have read a few ways to define a header file. What is the right way to do it?

This is from the C Programming Preprocessor tricks:

http://www.cprogramming.com/tutorial/cpreprocessor.html

#ifndef _FILE_NAME_H_
#define _FILE_NAME_H_

/* code */

#endif // #ifndef _FILE_NAME_H_

And this is from wikipedia's page on #include guard.

http://en.wikipedia.org/wiki/Include_guard

#ifndef GRANDFATHER_H
#define GRANDFATHER_H

struct foo {
    int member;
};

#endif

Are you supposed to put underscores at the start and end of the header name? Or are you supposed to just put them before the H?

[Prelude]

>Are you supposed to put underscores at the start and end of the header name?
You're not supposed to use leading underscores, or more than one consecutive underscore (unless you are the implementation, because those identifiers are reserved for the implementation). Anything else is fair game. There's nothing special about these names, just make sure they follow the rules for a valid identifier and don't clash with other names.

[HLMetroid]

Ok, thanks for the help.