Re: how to avoid pulling in Win32 include "world" for mutex

"Alf P. Steinbach" <>
Sun, 6 May 2007 10:53:54 CST
* Daniel Kr?gler -> someone unidentified:

By the way, the pimpl idiom will have me doing a forward declaration
of CRITICAL_SECTION, but how? I don't know whether to declare it as:


I mean, what if I choose the former and windows chooses the latter or

This doesn't matter. From the point of the language both
are equivalent class-keys for non-union classes.

Actually it matters even less. :-)

The PIMPL idiom only requires a forward declaration of your own
implementation class, not of classes used in the implementation.

If consistency of using "struct" versus "class" is important with a
given compiler, then the solution is to just be consistent.

I think the someone unidentified (please include attributions with
quotes) was referring to an OS-provided class CRITICAL_SECTION, and in
that case the comment about having to forward-declare, was simply wrong.

By the way, it's a good idea to reserve all uppercase for macros, see
e.g. <url:>,
<url:> and <url:>.

A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?

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