performance_iterators_base64.cpp

来自「Boost provides free peer-reviewed portab」· C++ 代码 · 共 101 行

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// test_iterators.cpp

// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#include <algorithm>
#include <list>

#if (defined _MSC_VER) && (_MSC_VER == 1200)
#  pragma warning (disable : 4786) // too long name, harmless warning
#endif

#include <cstdlib>
#include <cstddef> // size_t

#include <boost/config.hpp>
#ifdef BOOST_NO_STDC_NAMESPACE
namespace std{ 
    using ::rand; 
    using ::size_t;
}
#endif

#include <boost/pfto.hpp>

#include <boost/archive/iterators/binary_from_base64.hpp>
#include <boost/archive/iterators/base64_from_binary.hpp>
#include <boost/archive/iterators/insert_linebreaks.hpp>
#include <boost/archive/iterators/remove_whitespace.hpp>
#include <boost/archive/iterators/transform_width.hpp>

#include "../test/test_tools.hpp"

#include <iostream>

template<typename CharType>
void test_base64(){
    CharType rawdata[150];
    std::size_t size = sizeof(rawdata) / sizeof(CharType);
    CharType * rptr;
    for(rptr = rawdata + size; rptr-- > rawdata;)
        *rptr = std::rand();

    // convert to base64
    typedef std::list<CharType> text_base64_type;
    text_base64_type text_base64;

    typedef 
        boost::archive::iterators::insert_linebreaks<
            boost::archive::iterators::base64_from_binary<
                boost::archive::iterators::transform_width<
                    CharType *
                    ,6
                    ,sizeof(CharType) * 8
                >
            > 
            ,72
        > 
        translate_out;

    std::copy(
        translate_out(BOOST_MAKE_PFTO_WRAPPER(static_cast<CharType *>(rawdata))),
        translate_out(BOOST_MAKE_PFTO_WRAPPER(rawdata + size)),
        std::back_inserter(text_base64)
    );

    // convert from base64 to binary and compare with the original 
    typedef 
        boost::archive::iterators::transform_width<
            boost::archive::iterators::binary_from_base64<
                boost::archive::iterators::remove_whitespace<
                    BOOST_DEDUCED_TYPENAME text_base64_type::iterator
                >
            >,
            sizeof(CharType) * 8,
            6
        > translate_in;
    
    BOOST_CHECK(
        std::equal(
            rawdata,
            rawdata + size,
            translate_in(BOOST_MAKE_PFTO_WRAPPER(text_base64.begin()))
        )
    );

}

int
test_main( int argc, char* argv[] )
{
    test_base64<char>();
    #ifndef BOOST_NO_CWCHAR
    test_base64<wchar_t>();
    #endif
    return EXIT_SUCCESS;
}