Watching complex expressions patch

[muller@cerbere.u-strasbg.fr]

At 11:50 04/11/99 -0800, Stan Shebs wrote:
>
>   Date: Thu, 04 Nov 1999 11:46:19 +0100
>   From: Pierre Muller <muller@cerbere.u-strasbg.fr>
>
>     So my mecanism remembers the last memory that has been set a watch 
>   and after reject all watches of bigger memory regions including that
memory !
>
>I'm not clear on what you're getting at here, but it sounds wrong.
>GDB should allow the user to set any combination of watchpoints on the
>same or related pieces of data.  The reason is the same as for
>breakpoints; it's possible to attach conditions to watchpoints, and
>you may have reason to attach one condition to "watch t.c", but a
>different condition to a "watch t".  GDB should evaluate both
>conditions whenever t.c changes, but only one condition each time t.a
>or t.b changes.

  No, you misunderstood me :
I was only talking about a val_clain for one specific watchpoint
Settings different watchpoint that overlap is not affected by my changes !!

 The last memory region is reset to zero 
for each watchpoint considered !