On So, 2014-12-28 at 03:08 +0200, Chriss Kalogeropoulos wrote:
> Hi again,
>
> Sven made a good point on records. However most of the time it is easier to
It took me some time to understand, he did actually.
> use classes.
Not possible on old code, new stuff is using objects for sure.
> Also y
On So, 2014-12-28 at 00:01 +0100, Sven Barth wrote:
> Am 27.12.2014 16:11 schrieb "Marc Santhoff" :
> > Is there any way of cloning record and objects having only data fields?
> > Or do I have to copy the (non reference) fields one by one as usual?
>
> Shouldn't the normal assignment be enough for
Hi again,
Sven made a good point on records. However most of the time it is easier to
use classes.
Also you might be able to write some code to copy the property values using
rtti so you can avoid the read/write component and the extra overhead. It
will work for TPersistent descendants but might b
On Sa, 2014-12-27 at 19:56 +0200, Chriss Kalogeropoulos wrote:
> Hi,
>
> FPC does not support copy-construction so either you must override the
> TPersistent.Assign method or in case of TComponent you can use
> ReadComponent/WriteComponent.
:|
> You should also take into account deep vs swallow
Am 27.12.2014 16:11 schrieb "Marc Santhoff" :
> Is there any way of cloning record and objects having only data fields?
> Or do I have to copy the (non reference) fields one by one as usual?
Shouldn't the normal assignment be enough for any non-reference (aka
non-managed pointers) fields?
Meaning
Hi,
FPC does not support copy-construction so either you must override the
TPersistent.Assign method or in case of TComponent you can use
ReadComponent/WriteComponent.
You should also take into account deep vs swallow copy semantics as well as
the type of the container and contained classes
(TPer
On Sa, 2014-12-27 at 16:45 +0100, Bart wrote:
> On 12/27/14, Marc Santhoff wrote:
>
> > function clone(data_in: a_record): a_record;
> > var
> > data: Pa_record;
> > begin
> > new(data);
> data^ := data_in; //should work*
> > end;
>
> * Might not be a good idea if data contains a class
On 12/27/14, Marc Santhoff wrote:
> function clone(data_in: a_record): a_record;
> var
> data: Pa_record;
> begin
> new(data);
data^ := data_in; //should work*
> end;
* Might not be a good idea if data contains a class(reference).
Bart
___
f
Hi,
I hope you all had nice christmas days and now can answer my
question. ;)
Is there any way of cloning record and objects having only data fields?
Or do I have to copy the (non reference) fields one by one as usual?
Explanation:
a_record = record
this: integer;
that: string;
...
end
f
