Re: 22.2 slower than 21.3

[David Combs]

In article <mailman.17893.1220019825.18990.help-gnu-emacs@gnu.org>,
Alan Mackenzie  <bug-cc-mode@gnu.org> wrote:
>Hi, Robert!
>
>On Fri, Aug 29, 2008 at 01:06:52AM -0700, Robert wrote:
>> Hi,
>
>> I just installed 22.2 (pre-built binary for Windows XP), but find it
>> slower than 21.3. I notice when opening C-files. I went straight back
>> to 21.3 now because of that.
>
>There was a bug in older CC Modes which made it "necessary" to scan
>entire buffers when loading them.  It was this:
>
>#########################################################################
>put the following into
>a C file, somewhere near the beginning:
>
>#warning for isn't a keyword here.

Sure looks like a C-comment to me -- so by what means did
emacs "see into" that comment?  And why would it do anything
like that?


Thanks,

David