Generics.Collections seems to be something that was added after 3.0.4, I've
downloaded the current FPC source code, but I’m not sure how to build it.. can
someone point me in the right direction on how to compile the current source
code?
James
-----Original Message-----
From: fpc-pascal <fpc-pascal-boun...@lists.freepascal.org> On Behalf Of James
Richters
Sent: Monday, July 8, 2019 6:48 AM
To: 'FPC-Pascal users discussions' <fpc-pascal@lists.freepascal.org>
Subject: Re: [fpc-pascal] specify variable name with string variable
Thank you for the answer and the example... I didn't know there was such a
thing as a variable dictionary, but It looks like that may work for me, I'll
give it a try!
James
-----Original Message-----
From: fpc-pascal <fpc-pascal-boun...@lists.freepascal.org> On Behalf Of zh loza
Sent: Sunday, July 7, 2019 4:34 PM
To: FPC-Pascal users discussions <fpc-pascal@lists.freepascal.org>
Subject: Re: [fpc-pascal] specify variable name with string variable
Hi all! It's my first answer to the mailing list, hopefully I won't screw
anything up.
On Sun, Jul 7, 2019 at 10:58 PM James Richters <ja...@productionautomation.net>
wrote:
>
> This might sound silly, but is it possible to somehow specify a variable
> with a string containing the name of the variable?
You might want to try using generic dictionaries. E.g. like this:
program Project1;
uses
SysUtils, Generics.Collections;
type
TVariableDictionary = specialize TDictionary<String, PWord>;
var
MyDictionary: TVariableDictionary;
MyVariable1: Word;
begin
MyDictionary := TVariableDictionary.Create;
MyDictionary.Add('MyVariable1', @MyVariable1);
MyDictionary['MyVariable1']^ := 100;
WriteLn(MyVariable1);
WriteLn(MyDictionary['MyVariable1']^);
FreeAndNil(MyDictionary);
end.
If you need to address variables of different type, try Variants (
https://wiki.freepascal.org/Variant ).
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