65 lines
1.2 KiB
Plaintext
65 lines
1.2 KiB
Plaintext
{
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$Project$
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$Workfile$
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$Revision$
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$DateUTC$
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$Id$
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This file is part of the Indy (Internet Direct) project, and is offered
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under the dual-licensing agreement described on the Indy website.
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(http://www.indyproject.org/)
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Copyright:
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(c) 1993-2005, Chad Z. Hower and the Indy Pit Crew. All rights reserved.
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}
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{
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$Log$
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}
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{
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Rev 1.1 2003-10-16 11:22:42 HHellström
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Fixed for dotNET
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Rev 1.0 11/13/2002 07:53:32 AM JPMugaas
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}
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unit IdHashElf;
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interface
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{$i IdCompilerDefines.inc}
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uses
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IdGlobal,
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IdHash;
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type
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TIdHashElf = class(TIdHash32)
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public
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procedure HashStart(var VRunningHash : UInt32); override;
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procedure HashByte(var VRunningHash : UInt32; const AByte : Byte); override;
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end;
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implementation
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{ TIdHashElf }
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procedure TIdHashElf.HashStart(var VRunningHash: UInt32);
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begin
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VRunningHash := 0;
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end;
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procedure TIdHashElf.HashByte(var VRunningHash: UInt32; const AByte: Byte);
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var
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LTemp: UInt32;
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begin
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VRunningHash := (VRunningHash shl 4) + AByte;
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LTemp := VRunningHash and $F0000000;
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if LTemp <> 0 then begin
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VRunningHash := VRunningHash xor (LTemp shr 24);
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end;
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VRunningHash := VRunningHash and (not LTemp);
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end;
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end.
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