Issue (DbgHelp): long*/int*

Hi All,

After reading a few posts from Roger [1,2], I was able to dump the
data types (includeing pointers) of variables in my program.

I imagine this issue has to do with the compiler and linker, and the
resulting PDB file. It surfaces through DbgHelp.

The underlying BaseType of a long* is indexed as an int, even though
there is a distinction between a long and int. I verified Visual
Studio's 'Local' and 'Watch' windows display the same behavior
(display that a long* is an int*).

Jeff

[1]
http://groups.google.com/group/microsoft.public.windbg/browse_thread/thread/5d26
372af841c247

On Mar 18, 10:21 pm, Jeffrey Walton <noloa...@gmail.com> wrote:
> Hi All,
>
> After reading a few posts from Roger [1,2], I was able to dump the
> data types (includeing pointers) of variables in my program.

Good news!
It is a little bit tricky to follow the right sequence of calls :-)

> I imagine this issue has to do with the compiler and linker, and the
> resulting PDB file. It surfaces through DbgHelp.
>
> The underlying BaseType of a long* is indexed as an int, even though
> there is a distinction between a long and int. I verified Visual
> Studio's 'Local' and 'Watch' windows display the same behavior
> (display that a long* is an int*).

Uh??
Not a problem I've seen....
May be off this group and a bug in your tool chain.

Testing the following code with VS 2005 (32 bit):-

----- simple.cpp
int main()
{
  int i[2] = {1,2};
  int *pi = i;

  long l[2] = {3,4};
  long *pl = l;

  return pl[0] ? pi[0] : pi[1];
}
----------
cl /Zi simple.cpp

Locals window shows me:
  l long[2]
  pl long*
  i int[2]
  pi int*

What do you see?

Regards,

On Mar 19, 6:22 am, roger....@gmail.com wrote:
> On Mar 18, 10:21 pm, Jeffrey Walton <noloa...@gmail.com> wrote:
>
> > [SNIP]
>
> > I imagine this issue has to do with the compiler and linker, and the
> > resulting PDB file. It surfaces through DbgHelp.
>
> > [SNIP]
>
> Uh??
> Not a problem I've seen....
> May be off this group and a bug in your tool chain.
Yep... copy and paste - I changed the other declarations from an int
to long (but not the pointer). This is why I call them 'issues' rather
than bugs. Usually the issue is with me.

> Testing the following code with VS 2005 (32 bit):-
>
> ----- simple.cpp
> int main()
> {
>   [SNIP]
> }
>
>
> What do you see?
>
> Regards,
> Roger.