On Fri, 2 Mar 2012, Marcos Douglas wrote:
On Wed, Feb 29, 2012 at 10:38 PM, Marcos Douglas <m...@delfire.net> wrote:
Hi,
The TField class have the FValueBuffer: Pointer attribute and have
also SetData(Buffer: Pointer,...) method that all T***Field subclasses
use to set themselves.
The methods AsInteger, AsString, etc use FValueBuffer to convert in an
especific type. So, FValueBuffer could be anything.
My question is:
What would be the difference in performance if FValueBuffer were a Variant type?
Marcos Douglas
Nobody knows?
I need implements a similar structure but I need know if the use of
Variant have very cost.
It has a cost.
The reason for using a buffer in tdataset is that a record's data normally
is located in one continuous buffer, from which a value is picked from the
right spot (including strings) You can't have that with variants.
Michael.
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