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Re: GUD/GDB in emacs

From: Nick Roberts
Subject: Re: GUD/GDB in emacs
Date: Fri, 18 Jul 2008 08:46:15 +1200

 > > I'm not sure what you mean exactly.  Maybe expand a node in situ in the
 > > locals buffer, for example.  
 > That would seem the obvious solution and is the case in other IDEs. e.g
 > you see "p" in the locals (where p is a pointer to a struct for example)
 > and then can see the struct by double clicking it for example. Pretty
 > much what the speedbar does but without the speed bar.

I think Insight does this but ISTR Totalview uses a separate frame.  Expanding
in situ makes it harder to find the other locals.  In fact I'm thinking of
using a separate frame for each watch expression, something which isn't really
possible with the speedbar.  This would be helpful for arrays and large

 >                                                         (As an aside, if
 > I mouseclick 2 on a local in the locals buffer then its added to the
 > speedbar as a watch - it would be more consistent I think if "watch p"
 > from the gdb command line also did the same if the speedbar is in use,
 > what do you think?).

The GDB command "watch" means something else (it sets watchpoint, rather than
creating a "watch expression").  Watch expressions are created using something
GDB calls "Variable Objects" and they are created using GDB/MI commands
intended for the frontend only.  I'm not sure that there is much benefit in
making this functionality available to the command line.  Note if you want
to supply an argument for a watch expression, you can do C-u C-c C-w from the
GUD buffer or C-u C-x C-a C-w from any other.


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