CopyVar

[webmasterpdx]

Can anyone explain the difference between these 2 lines....in terms of what happens?
A:=B;
CopyVar(A,B);

The docs say the second line copys the storage area that B holds into A's storage area. I see no difference between that an A:=B;.....
Alternatively, give me an example where they would not be the same...

Ultimately, what I'm trying to figure out is defined in this post...
http://www.hpmuseum.org/forum/thread-9018.html
....but nobody's answered it yet...

Thx
-Donald