Header files

This is a discussion on Header files within the C++ Programming forums, part of the General Programming Boards category; Hi, I've done some searching on this site on header files but haven't got much luck... I was wondering how ...

  1. #1
    Registered User
    Join Date
    Mar 2002
    Posts
    51

    Header files

    Hi,

    I've done some searching on this site on header files but haven't got much luck...

    I was wondering how exactly header files work...
    Say for example, I want to create a simple header file to include with my code, what kind of coding do I need in the .h file...
    All i know is the command #include "myheader.h"..

    Can someone give me some more information on header files?
    Which is the master, which is the student?

  2. #2
    Registered User
    Join Date
    Sep 2001
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    305
    a header file can have variables, functions, classes, structs, includes, and stuff like that. for example, here is an sample main file:
    Code:
    #include "myHeader.h"
    
    int main(){
        func();
        cout << i;
        retun 0;
    }
    ok, heres the header:
    Code:
    #include <iostream.h>
    void func();
    int i;
    
    void func(){
       i = 15;
       return;
    }
    of course you can take out any part of this so you can have:
    Code:
    void func();
    int i;
    
    void func(){
       i = 15;
       return;
    }
    but youd have to include iostream.h somewhere.

  3. #3
    Registered User
    Join Date
    Mar 2002
    Posts
    51
    Ah...ok, ... thanks for the reply
    Which is the master, which is the student?

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