bug#5570: Emacs 23.1.91.1 C++ mode "ESC C-q" and TAB indenting issue.

[Alan Mackenzie]

Hi, Bob,

On Mon, Feb 15, 2010 at 09:14:52AM -0800, Bob wrote:
> Alan,

> I am now running two emacs 23.1.91.1, one I started last week with many
> files open in which I "work" etc., and one I just started with dribbling
> "on" to edit a file I have seen the issue in. After half-hours editing in
> this one, nothing bad has happened. I temporarily jumped back to the "work"
> session to add a few needed lines and wammy! the problem appeared after
> adding 7 lines:

Could you be a little bit more exact in exactly what you did here.  I
have just fired up emacs 23.1.91, typed in 

    namespace foo
    {

(in column 0), then typed in the the lines that you've identified as
causing the error:

>   template<class _DataType>
>   struct SelectInternalConvertableToVectorType
>   {
>     typedef typename DataTypeTrait<_DataType>::TAbout TAbout;
>
>     typedef TL::IF<TL::MemberOf<TAbout,EnumDTP::Internal>::value>
> TInternal;
>     typedef TL::IF<
>       TL::MemberOf<TAbout,EnumDTP::HasVectorType>::value
>       >                                          TConvertableToVectorType;
>       
>     typedef TL::IF<
>       (TInternal::value &&
> TConvertableToVectorType::value),_DataType,TL::False
>       >::Result                                               Result;
> };   <------------------------ Appears in column 1

However, that "};" for me appeared in the correct column, not in column
0.

> I wrote the buffer, started a 3rd emacs, went to the line, hit TAB and the
> indentation
> corrected:

That, at least, is refreshing.

>   };   <------------------------ Correct.

> Back in the original session TAB still places the '{' in column 1.

It doesn't for me.  But I _have_ seen this error happening.

So, could you please try and give me a precise recipe for how to
reproduce the error, down at the level of what the buffer should look
like before inserting these lines, and which keys to press to insert
them.  Was I correct in guessing that you typed in the lines when you
said you "added" them, as opposed to, say, C-y?

> I am now attempting to try your c-state-cache-init and find this is not
> defined.

That's exactly

    M-: (c-state-cache-init)

, including the parens round the word.  Are you certain you typed it
correctly?  It should be there in Emacs 23.1.91.

> Please advise what to do. I've attached "describe-bindings" if that helps. 

> Thanks,
> Bob

> PS "C-c C-b" runs "c-submit-bug-report" - is that what you expect?

Yes.  It produces a dump of CC Mode's config as part of a mail buffer.
Cut and paste it into your own mail client.

-- 
Alan Mackenzie (Nuremberg, Germany).