Re: -var-update using formatted value

[Nick Roberts <nickrob at snap dot net dot nz>]

 > > I don't like this change.  If I change the format to hexadecimal, 11 -> 0xb
 > > say, the display should change, so I would like GDB to report it through
 > > -var-update.
 > 
 > Why? It seems to me that if user does "change format" in UI, then UI should:
 > 
 >   1. Change format
 >   2. Display the value shown according to the new format
 
In this case, GDB needs to print the value of the new format.  I did submit a
patch to do this in the thread:

http://sourceware.org/ml/gdb-patches/2006-05/msg00008.html

but it never got approved.  I've now configured Emacs (but can revert) for
current behaviour.


 > I cannot imagine any usecase where the frontend would:
 > 
 >  1. Change format
 >  2. Step program
 >  3. Issue -var-update

I'm not sure what point you're making here.  Debugging GDB, has variables which
contain addresses which are not pointers (so the natural format is decimal),
e.g., stack_addr, code_addr components of frames.  It makes sense here to:

1.  Change format to hexadecimal
2.  Step GDB
3.  Issue -var-update to see if these values have changed.

-- 
Nick                                           http://www.inet.net.nz/~nickrob