72 lines
1.9 KiB
C++
Executable File
72 lines
1.9 KiB
C++
Executable File
//
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// EX08CON.CPP
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//
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// C++/DOS Example program for ArchiveLib 2.0
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//
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// Copyright (c) Greenleaf Software, Inc. 1994 - 1996
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// All Rights Reserved
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//
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// MEMBERS/FUNCTIONS DEMONSTRATED
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//
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// ALStorage::GetCrc32()
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// ALStorage::InitCrc32()
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// ALFile::ALFile()
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//
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// DESCRIPTION
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//
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// This program does a simple compression of a file to a memory buffer.
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// It uses the raw compression function, instead of using an archive
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// or ALCompressedObject as its target. This is the sort of code you
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// would use if you were compressing or expanding from your own types
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// of proprietary files.
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//
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// REVISION HISTORY
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//
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// February 1, 1996 2.0A : Second release
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//
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#include <conio.h>
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#include "arclib.h"
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#include "filestor.h"
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#include "memstore.h"
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#include "copyengn.h"
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#include "_openf.h"
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main()
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{
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cout << "Archive Library 2.0\nEX08CON.CPP\n\n";
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cout << "This program does a simple compression of a file to a memory buffer.\n";
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cout << "It uses the raw compression function, instead of using an archive\n";
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cout << "or ALCompressedObject as its target. This is the sort of code you\n";
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cout << "would use if you were compressing or expanding from your own types\n";
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cout << "of proprietary files.\n\n";
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getch();
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ALFile input( "EX08CON.CPP" );
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ALMemory output( "In memory buffer" );
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ALCompressor *engine = new ALCopyCompressor;
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//
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// This shouldn't ever fail, which is the point of an assertion.
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//
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AL_ASSERT_OBJECT( engine, ALCompressor, "EX08CON.CPP" );
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if ( input.Open() != AL_SUCCESS ) {
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input.mStatus.SetError( AL_SUCCESS, "" );
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input.mName = "..\\EXAMPLES\\EX08CON.CPP";
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input.Open();
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}
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if ( input.mStatus != AL_SUCCESS ) {
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cout << "Could not open EX08CON.CPP!\n";
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return 1;
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}
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output.Create();
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input.InitCrc32();
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engine->Compress( input, output );
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long crc = ~input.GetCrc32();
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cout << "Crc = " << hex << crc << "\n";
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delete engine;
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return 1;
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}
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