Huge strings and Out of Memory

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#48

From: SH
Date: Thu, 10 Nov 2005 20:46

34 lines
2010 bytes

Hi

I have a simple application containing this code:
---
var s : string;
begin
  setlength(s, 1024*1024*512);
  showmessage('ok');
  setlength(s, 1024*1024*1024);
  showmessage('ok');
  ...
---

The problem is that Delphi spits our an 'Out of Memory' error even though
there's more than 1.2GB free memory available

On the other hand, this code works fine:
---
var s : string;
begin
  setlength(s, 1024*1024*1024);
  showmessage('ok');
  ...
---

So it seems like Delphi creates a whole new memory allocation containing
'1024*1024*1024' bytes before unassigning any of the previosuly assigned
'1024*1024*512' bytes.

Is there a work-around for this, so I can make the first code example above
work?

Thanks in advance
  Simon

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