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https://github.com/0ldsk00l/nestopia.git
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78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
////////////////////////////////////////////////////////////////////////////////////////
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//
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// Nestopia - NES/Famicom emulator written in C++
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//
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// Copyright (C) 2003-2008 Martin Freij
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//
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// This file is part of Nestopia.
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//
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// Nestopia is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// Nestopia is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Nestopia; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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////////////////////////////////////////////////////////////////////////////////////////
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#ifndef NST_CHECKSUM_H
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#define NST_CHECKSUM_H
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#ifdef NST_PRAGMA_ONCE
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#pragma once
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#endif
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#include "NstCore.hpp"
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#include "NstSha1.hpp"
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namespace Nes
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{
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namespace Core
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{
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class Checksum : public ImplicitBool<Checksum>
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{
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public:
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Checksum();
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Checksum(const byte*,dword);
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void Clear();
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void Compute(const byte*,dword);
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void Recompute(const byte*,dword);
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bool operator == (const Checksum&) const;
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bool operator ! () const;
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private:
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Sha1::Key sha1;
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dword crc32;
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public:
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bool operator != (const Checksum& checksum) const
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{
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return !(*this == checksum);
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}
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Sha1::Key::Digest GetSha1() const
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{
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return sha1.GetDigest();
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}
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dword GetCrc() const
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{
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return crc32;
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}
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};
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}
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}
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#endif
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