[fpc-pascal] Array clearing

Sven Barth pascaldragon at googlemail.com
Thu Apr 13 18:39:04 CEST 2017

Am 13.04.2017 18:06 schrieb "Ryan Joseph" <ryan at thealchemistguild.com>:
> > On Apr 13, 2017, at 10:29 PM, Sven Barth via fpc-pascal <
fpc-pascal at lists.freepascal.org> wrote:
> >
> > SetLength *does* use a reallocate for this, but since it doesn't give
you any guarantee for its success as its the task of the memory manager to
deal with this, it's easier to assume that the array is indeed copied.
> >
> So the real point here is that ReAllocMem will copy and allocate a new
block if the old one can’t be resized, therefore this really isn’t about
SetLength as much as the memory manager itself.

Correct. And since the memory manager is changeable and might implement
whatever behavior it wants nothing fixed can be done for this.

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