c++/6601: [parser] Parse error when using :: qualified name in template

[Nathan Sidwell]

Gerald Pfeifer wrote:
> If we don't have digraphs disabled by default, that'd be something I'd
> consider changing.
no, they're in the language. It might be nicer though to fiddle the
grammar so that where
	PTYPENAME < SCOPED_NAME 
appears (under whatever guise it happens to be), we also have the reduction
	PTYPENAME [ : error >
	   error ("did you mean '$1 < ::'?")

> > I append a patch to bugs.html below which lists this as a non-bug. It
> > might be worthwhile for both 3.1 and 3.2.
> 
> It looks fine from the webpages side of things, but I'd like one of
> the C++ maintainers/regulars to Ack this (simply because this is an
> area I'm not really an expert in).
ok by me.

nathan

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