Re: [boost] [ptr_container] Semicolons after macros

From: Dave Steffen (dgsteffen_at_[hidden])
Date: 2005-11-11 12:12:49

Oliver Kullmann writes:
 > On Fri, Nov 11, 2005 at 08:59:56AM -0700, Dave Steffen wrote:
 > > Boris Burger writes:
 > >  > Hello,
 > >  > the issue with extra semicolons at namespace or class scope is
 > >  > surely nothing new and has been discussed extensively.
 > > 
 > >  Yes, I was one of the instigators...
[...]
 > >  In fact, I don't think there's a way to lower warning levels to
 > >  _just_ get rid of the semicolon complaints; you'd also be turning off
 > >  warnings you want.  The only solution I found was to either
 > > 
 > > 	  A) remove the semicolon, or
 > > 	  B) to use a macro definition
 > > 
 > >  A) is easiest, but may make people's editors unhappy.
 > >
 > 
 > Hi,
 > 
 > I was following the first investigations some time ago not very
 > closely, but I didn't realise (until lately) that removing the
 > semicolon at namespace scope is actually required by the language
 > definition.

 Right, that's the whole point of the discussion.  This isn't GCC
 being too picky or anything like that.  GCC 3.4 is correct; that
 semicolon _really_ isn't allowed there.  Seriously.  No kidding.  We
 mean it. :-)

 > So I think there is no way out: If there is a conflict between text
 > editor and language definition, then the text editor must retreat.

 Well, we've had that discussion. Until some emacs lisp experts get
 involved, a lot of people will have issues. :-)

 What I've done - and this was the solution I posted earlier - was
 come up with a (clever, ugly) hack that allows the semicolon.  That
 is, you put something clever at the end of the macro definition that
 requires a following semicolon but doesn't do anything else.  Then
 you can A) put semicolons after macros where you (and your text
 editor) want them, and B) adhere to the standard and keep GCC happy.
 No emacs hacking needed.

------------------------------------------------------------------------
Dave Steffen, Ph.D.      On a paper submitted by a physicist colleague:
Software Engineer IV     
Numerica Corporation      "This isn't right. This isn't even wrong."
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