[fpc-devel] Redefine FillChar() to use out parameter instead

[Graeme Geldenhuys]

Hi,

I asked a question about a compiler hint in the fpc-users mailing list.
As JoshyFun suggested, is it not maybe better to change FillChar()
definition so first parameter is a out parameter - to prevent
unnecessary compiler hint in code?



-------- Original Message --------
Subject: Re: [fpc-pascal] How to solve "variable does not seem to be
initialized" compiler hint.
Date: Tue, 17 Nov 2009 11:45:39 +0100
From: JoshyFun <joshyfun at gmail.com>
Reply-To: FPC-Pascal users discussions <fpc-pascal at lists.freepascal.org>
To: Graeme Geldenhuys <graemeg at opensoft.homeip.net>,	FPC-Pascal users
discussions <fpc-pascal at lists.freepascal.org>
References: <4B0274EA.3000100 at mastermaths.co.za>

Hello Graeme,

Tuesday, November 17, 2009, 11:03:22 AM, you wrote:

GG> /home/graemeg/programming/3rdParty/DCPcrypt/dcpblockciphers.pas(229,16)
GG> Hint: Local variable "Temp" does not seem to be initialized
[...]
GG>     raise EDCP_blockcipher.Create('Cipher not initialized');
GG>   p1:= @Indata;
GG>   p2:= @Outdata;

Insert this, or in other words "use it". The reason is that "fillchar"
first parameter is "var" instead "out".

Temp[0]:=0;

GG>   FillChar(Temp, SizeOf(Temp), 0); // <-- I added this to no affect
GG>   for i:= 1 to Size do


Best regards,
 JoshyFun
--------------------------------------



Regards,
  - Graeme -

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