[fpc-pascal] Primitive Record Wrappers

Mazola Winstrol mazofeifer at gmail.com
Sat Feb 27 18:55:33 CET 2016


2016-02-27 0:49 GMT-03:00 Dmitry Boyarintsev <skalogryz.lists at gmail.com>:

> On Fri, Feb 26, 2016 at 10:38 PM, Mazola Winstrol <mazofeifer at gmail.com>
> wrote:
>
>> In the code bellow, the generic type TNullableTyple is implemented (and
>> incomplete for now).
>>
> How to reset TNullableType to Null value? HasValue seems to be read-only.
>

In the last version, there is two ways:

var
   NullInt: TNullable<Integer>;
begin
   NullInt.Clear; // Method 1
   NullInt := nil; // Method 2
end;
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