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  1.  Home
  2. RPG400-L
  3. October 2002

Re: Pointer question

Smith, Nelson wrote:

If I
	Alloc	100	MyPointer
and then,
	EVAL	GenericPointer = MyPointer
and then
	Realloc	1000	GenericPointer
have I reallocated the memory assigned to MyPointer as well as
GenericPointer?

Yes.  Indeed, the value of MyPointer may well point to storage
that's been returned to the free pool, so you need to be especially
careful if you do something like this.  If you still care that
MyPointer has a valid value, you need to assign the (possibly) new
value of GenericPointer to MyPointer to ensure it still points to
valid storage.

Cheers!  Hans

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