Not particularly relevant to the original question, but...
David LaFrance-Linden writes:
> Here, it is clear what happens if A were go get retargeted (the
> previous contents continue to get updated) or nullified (undefined,
> because of usage of pointers into nullified data).
I presume that you mean deallocated instead of nullified.
They are not at all the same thing; in fact the phrase
"nullified data" doesn't make much sense.
Nullification is much more like retargetting than like
deallocation. It does not touch the data - just the pointer.
In fact, you can even do nullification by using a pointer assignment
statement.
Perhaps you just misstated it accidentally. But I'm posting the
correction because I have talked to people who mistakenly thought
that nullification was equivalent to deallocation.
--
Richard Maine | Good judgment comes from experience;
[log in to unmask] | experience comes from bad judgment.
| -- Mark Twain
