76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
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// Boost CRC example program file ------------------------------------------//
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// Copyright 2003 Daryle Walker. Use, modification, and distribution are
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// subject to the Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or a copy at <http://www.boost.org/LICENSE_1_0.txt>.)
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// See <http://www.boost.org/libs/crc/> for the library's home page.
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// Revision History
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// 17 Jun 2003 Initial version (Daryle Walker)
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#include <boost/crc.hpp> // for boost::crc_32_type
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#include <cstdlib> // for EXIT_SUCCESS, EXIT_FAILURE
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#include <exception> // for std::exception
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#include <fstream> // for std::ifstream
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#include <ios> // for std::ios_base, etc.
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#include <iostream> // for std::cerr, std::cout
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#include <ostream> // for std::endl
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// Redefine this to change to processing buffer size
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#ifndef PRIVATE_BUFFER_SIZE
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#define PRIVATE_BUFFER_SIZE 1024
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#endif
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// Global objects
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std::streamsize const buffer_size = PRIVATE_BUFFER_SIZE;
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// Main program
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int
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main
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(
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int argc,
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char const * argv[]
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)
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try
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{
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boost::crc_32_type result;
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for ( int i = 1 ; i < argc ; ++i )
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{
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std::ifstream ifs( argv[i], std::ios_base::binary );
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if ( ifs )
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{
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do
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{
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char buffer[ buffer_size ];
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ifs.read( buffer, buffer_size );
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result.process_bytes( buffer, ifs.gcount() );
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} while ( ifs );
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}
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else
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{
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std::cerr << "Failed to open file '" << argv[i] << "'."
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<< std::endl;
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}
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}
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std::cout << std::hex << std::uppercase << result.checksum() << std::endl;
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return EXIT_SUCCESS;
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}
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catch ( std::exception &e )
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{
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std::cerr << "Found an exception with '" << e.what() << "'." << std::endl;
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return EXIT_FAILURE;
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}
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catch ( ... )
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{
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std::cerr << "Found an unknown exception." << std::endl;
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return EXIT_FAILURE;
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}
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