Re: C-style unit -> C++ class, implementation function / structure issue

From:
 James Kanze <james.kanze@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Thu, 12 Jul 2007 09:16:06 -0000
Message-ID:
<1184231766.259943.223700@w3g2000hsg.googlegroups.com>
On Jul 12, 1:18 am, Jason Doucette <jdouce...@gmail.com> wrote:

It appears that you are confusing header files and documentation. That
information about class layout (including private members) is put into
header files just goes to show that the intended reader of a header fil=

e is

the compiler, not your fellow programmer.


I am not confusing header files and documentation. Allow me to
explain:

I have a structure that only the implementation of the class uses.
But, since C++ forces the entire class to be defined in the .h file,
then all implementation functions must also be defined in the .h
file. Files that #include the .h file can still only 'see' the
interface, so that's fine. But, as a result, these implementation
functions that use implementation-only structures force these
structures to be defined in the .h file, making them visible to all
files that #include the .h file.


I'm not sure I understand. How did you get by in C without
defining the struct in the header? You can wrap exactly the
same technique in a class.

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