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  1.  Home
  2. RPG400-L
  3. January 2011

Re: Memory allocation strategy

If you allocate 100 bytes of memory and for some reason, there is a pointer
within those 100 bytes that points to a subset of itself.

Now you realloc to 200 bytes and the 100 bytes gets move to a different
memory range.

Then the embedded pointer would still retain its original value and no
longer point to a subset of itself at the new location.

Lets not ask the question why someone would do that.


-------- Original Message --------
From: "Rory Hewitt" <rory.hewitt@xxxxxxxxx>
Sent: Saturday, January 08, 2011 8:45 PM
To: "RPG programming on the IBM i / System i" <rpg400-l@xxxxxxxxxxxx>
Subject: Re: Memory allocation strategy

Indeed, pointers in user-allocated memory are always retained, as far as
I
know, even through multiple reallocations. If that weren't the case, all
my
apps would fail...


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