55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
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// This may look like C code, but it is really -*- C++ -*-
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// ------------------------------------------------------------------
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// The Goldware Library
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// Copyright (C) 1990-1999 Odinn Sorensen
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// Copyright (C) 1999-2000 Alexander S. Aganichev
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// ------------------------------------------------------------------
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library 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 GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free
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// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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// MA 02111-1307, USA
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// ------------------------------------------------------------------
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// $Id$
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// ------------------------------------------------------------------
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// CRC-16, CRC-32 and Hashing
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// ------------------------------------------------------------------
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#include <gctype.h>
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#include <gcrcall.h>
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// ------------------------------------------------------------------
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// Generate CRC-32 of a memory block
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dword memCrc32(const void* _m, long l, bool __case, dword mask) {
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long n;
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dword crc = mask;
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const char *m = (const char *)_m;
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if(__case) {
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for(n=0; n<l; n++)
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crc = updCrc32(toupper(*m++), crc);
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}
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else {
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for(n=0; n<l; n++)
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crc = updCrc32(*m++, crc);
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}
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return crc;
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}
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// ------------------------------------------------------------------
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