RE: [Dev-C++] Organisation of header files

[Ioannis V. <iv...@em...>]

> -----Original Message-----
> From: dev...@li...=20
> [mailto:dev...@li...] On Behalf=20
> Of Michael Stather
> Sent: Tuesday, July 08, 2003 11:59 PM
> To: dev...@li...
> Subject: [Dev-C++] Organisation of header files
>=20
>=20
> Hi,
>=20
> I divide my classes in a .cpp-file and a
> header-file (as suggested).
> Now I=B4ve heard of 3 possibilities to organise the
> dependencies:
>=20
> 1. Include only one header file in the
> implementation file, and in this header file,
> beside the class declaration include all required
> headers
>=20
> 2. Include the header which are important for the
> public interface of the class in the .cpp-file,
> and those who are only important for the methods
> "inside" the class in its header file (sounds the
> most logical)
>=20
> 3. Don=B4t include any header-file in the
> class-header, but include them all in the
> .cpp-file (before the actual class-header)
>=20
> Which solution is the best? (Or perhaps a
> completely different solution)
>=20
> Thanks for your help!!


I have got a headache so here you go. For non-template classes:


1) You can place the definition of the class in all the files you use =
the
class, that is you can place it in a header file and include that header
file to all the .cpp files you use the class.

This means that for every change in the definition of the class, you =
will
have to recompile all the source code files which have the definition =
(the
header).


2) Place the definition of the class in the header file except of the =
member
functions (usually the large ones) that should be defined out of the
definition of the class:


Example:


---- myheader.h

class A
{
 int s;

 public:
 A(int r):s(r) {}
 void great_things() const;
};



--- myheader.cpp

#include "myheader.h"

void A::great_things() const
{
  // ...
}



For every change in the .cpp file only, no other source code files is =
needed
to be recompiled.






Ioannis Vranos
=20
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