On Tue, 2004-08-17 at 08:05, kcorey wrote:
> On Mon, 2004-08-16 at 18:35, Ben Combee wrote:
> > >Off the top of my head, I think you have to select the variable, go to the
> > >Expressions tab in the Debug view, right click on it, and select Add New
> > >Expression. I also think that this works only when the application is
> > >stopped in the debugger.
> > >
> > >I agree that this is awkward, but its part of the base CDT
> > >functionality. We've got a request in to the core CDT team to see about
> > >fixing this (if it hasn't already been done for CDT 2.0 -- I haven't
> > >checked yet).
> >
> > A test case I just tried didn't work with the release build of PODS
> > 1.0. When I went to the expressions window and did "add global variable",
> > there were no items on the list, even though I had both an external and
> > static globals that were referenced in my code. Like Ken saw, local
> > variables were visible.
>
> It's a relief that I wasn't a complete boob!
>
> It is a bit frustrating, though, considering how much global variables
> are used in regular C palm programming.
>
> Ah well. I can tell the promise this tool shows. Please keep up the
> good work, guys!
>
> I guess I could have a data structure that holds all my global
> variables, and use it to pass the global structure as an argument to all
> functions. (ack!)
Actually, it's a bit easier than I'd expected. Put all your globals
into a struct like this:
struct globs {
// All my globals
int globX;
} globs;
Then I can refer to them from within functions like this:
int test(parmlist...)
{
struct globs *g=&globs;
g->globX = somevalue;
}
So, it's a work-around that doesn't require me to redefine all my
function calls. It also has the benefit that all my globals are in a
nice neat package for dropping into a database for saving state between
invocations. Hows that for looking at the bright side?
There's a bit of a wrinkle I noticed in my 3 minutes of playing with
this...
If you define this:
struct globs {
int globX;
int test[100];
} globs;
And then view this from within a function while debugging, apparently
the array test is not dereferenced correctly. It's displayed as if it
were another struct globs rather than int[]; Curious, eh?
-Ken
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