Re: Re: software design clarification

On Tue, 2007-05-01 at 14:14 +0200, Markus Elfring wrote:
> > Right. SourceFile already contains various annotations, such as language
> > (C++, C, ...), documentation format (javadoc, ReST, ...), as well as
> > various representations of the actual source it contains.
> >
> > I don't see the need to derive from it, though.
> 
> Do any source files exist that are not compilation units?

Now I must play teaching role.

What is "compilation units" ?
My point is, the language C++ has no notion of it.
But you can says "unit of compilation".

Program is not even oblige to be/have a source file.
A source file is an unit of storage. And source file have other rôles
that are implied by their used.  I our project we assume that the 
C++ program consist of one or more file.
The one file is an utopie because of system headers.

In brief,
A C++ program consist of "one" or more files.
A file is translated in several phases.
The result is a sequence of tokens which is called a translation unit.