Re: How to set shortcut for uncomment-region?!?

[Dave Sumsky]

Dave Sumsky wrote:
> Hi,
> I'm using GNU Emacs version 21.2.1 and  I have a problem with  shortcut
> for uncomment-region function in c++-mode, in my .emacs file I have:
>
> ;; shorcut for comment region
> (global-unset-key "\C-c\C-c")
> (global-set-key  "\C-c\C-c" 'comment-region)
>
> ;; shortcut for uncomment region
> (global-unset-key "\C-c\C-u")
> (global-set-key "\C-c\C-u" 'uncomment-region)
>
>
> Now, what is going wrong. Shortcut for comment region is working fine,
> but for uncomment region isn't. When I edit a C/C++ source file, I'm in
> c++-mode, and then when I try to uncomment a commented region with 
> shortcut \C-c\C-u,
> I receive this message in echo area: No containing preprocessor conditional
>
> So, could you help me with it? Does anybody know how to do correctly
> what I want?
> Thanks for any suggestions, Dave
Hi,
so I would like to begin using M-; for (un)commenting, BUT something is 
still wrong. Transient-mark-mode is active and my .emacs doesn't contain 
anything special. Now, what's the problem:
I have e.g. these lines of source code (c++-mode):

#include <iostream>
#include <fstream>
#include <string>

and I want to comment them all, so I set mark at the beginning of the 
first line with C-<SPC>, I get answer "Mark set", so it's O.K.

C-<SPC>#include <iostream>
              ^
#include <fstream>
#include <string>

I move to the end of the third line

C-<SPC>#include <iostream>
#include <fstream>
#include <string>
                           ^

And now I have a region, which I want to comment, so I try M-;, what's 
the result? This:

#include <iostream>
#include <fstream>
#include <string>                     //

But I would like to see this:

// #include <iostream>
// #include <fstream>
// #include <string>

PLEASE, help me with it, I don't really understand how it is working ...

I have defined these functions as c++-mode hooks:
imenu-add-menubar-index
hs-minor-mode
hl-line-mode
doxymacs-mode
auto-fill-mode
my-c-mode-hook // my c/c++-mode variables customization

Do you think that there could be something intersting with these 
functions featuring default behaviour of M-; ?!?
Thanks, Dave