[Lazarus] Error: Generics without specialization cannot be used as a type for a variable

[Peter Williams]

Hi,
Options changed, recompiling clean with -BHint: Start of reading config file /etc/fpc.cfgHint: End of reading config file /etc/fpc.cfgFree Pascal Compiler version 2.4.2-0 [2010/11/11] for i386Copyright (c) 1993-2010 by Florian KlaempflTarget OS: Linux for i386Compiling island_maker.lprCompiling unit1.pasunit1.pas(144,19) Error: Generics without specialization cannot be used as a type for a variableunit1.pas(152,1) Fatal: There were 1 errors compiling module, stopping
http://62.166.198.202/bug_view_advanced_page.php?bug_id=18101
(0043710)
Florian Klämpfl	(administrator) 
2010-11-29 10:47

Please use always the latest release compiler (2.4.2) as starting compiler to build a new fpc.

NB - I am using FPC 2.4.2.
type  Terrain_type = (Land, Sea);
  exit_type = array[ directions ] of integer;
  description_type = array[1..2] of string;
  Tmap_detail = Object                 FTerrain : Terrain_type;                 FTerrain_char : char;                 Fdescription : description_type;                 Fx, Fy, Flocation_number : integer;                 Fexits : exit_type;               end;
  // The Island class definition  Generic TIsland<T> = class      Items : array of Tmap_detail;    public    constructor Create(AList: TList);: [Lazarus] dtm_maker project compile errors with TList code.    procedure Add( Value : Tmap_detail );  end;        var  Form1: TForm1;  Island : TIsland; // line 144
Unit1.pas >>> http://pastebin.com/wuEft4Kb
Best Regards,PEW

From: pewilliams2010 at live.com
To: lazarus at lists.lazarus.freepascal.org
Date: Sat, 7 May 2011 01:17:39 +1000
Subject: Re: [Lazarus] dtm_maker project compile errors with TList code.








Hi Mattias,
I found the fgl unit. It was just a matter of adding it to the uses clause the using the right click 'find declaration'.
Thanks.
PEW

From: pewilliams2010 at live.com
To: lazarus at lists.lazarus.freepascal.org
Date: Sat, 7 May 2011 01:13:25 +1000
Subject: Re: [Lazarus] dtm_maker project compile errors with TList code.








Hi Mattias.

> Date: Fri, 6 May 2011 17:07:55 +0200
> From: nc-gaertnma at netcologne.de
> To: lazarus at lists.lazarus.freepascal.org
> Subject: Re: [Lazarus] dtm_maker project compile errors with TList code.
> 
> see the unit fgl for examples of generics.
Without meaning to ask the obvious question, where can I find the 'fgl' unit ? Please quote the path or url for it. I used the find command on my Linux system and it was not found. I have a Lazarus folder in my home folder.
PEW
> 
> Mattias
> 
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