--As of August 1, 2008 4:47:11 PM -0400, Michael Ash is alleged to have
said:
A *pointer* to an object is just an address, like 0x12345678. This is
the address of the first byte in that blob of memory. A pointer
essentially lets you find that object in memory, but it is not the
object. Think of it as the difference between your friend Bob, and
your friend Bob's phone number. You can store Bob's phone number in
every room of your house, but there remains only one Bob. If you then
give Bob a present, the phone number in every room in the house will
reach the Bob who is pleased because you gave him a present.
--As for the rest, it is mine.
...And, to continue the analogy, having the phone number and the general
line is generally easier to use and less likely to be a problem then
nailing a hardwired line direct to (and that can only reach) Bob in.
Daniel T. Staal
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