Question

只是试图用bzip2压缩一个阵列,以便我能够把它交给一个配有可视力的管道。

下面一行给我带来了以下汇编错误。

缩略语

Error 6 error C2027: use of undefined type boost::STATIC_ASSERTION_FAILURE c:program files (x86)oostoost_1_47oostiostreamschain.hpp 488 1 Agent

boost::iostreams::filtering_streambuf<boost::iostreams::input> in;
ostringstream uncompressed_string;
ostringstream compressed_string;


uncompressed_string << buf;

in.push(boost::iostreams::bzip2_compressor());
缩略语

boost::iostreams::copy(uncompressed_string, compressed_string);

Answer 1

这一错误是由于将output<>/em>流进input filtering 溪流作为其装置。

#include <sstream>
#include <string>
//#include <boost/iostreams/filtering_stream.hpp>
#include <boost/iostreams/filtering_streambuf.hpp>
#include <boost/iostreams/filter/bzip2.hpp>
#include <boost/iostreams/copy.hpp>
int main()
{
    std::string buf =  "this is a test
";

    //boost::iostreams::filtering_istream in; // I think this is simpler
    boost::iostreams::filtering_streambuf<boost::iostreams::input> in;
    in.push(boost::iostreams::bzip2_compressor());
    std::istringstream uncompressed_string(buf);
    // in.push(boost::make_iterator_range(buf)); // another option
    in.push(uncompressed_string);
    std::ostringstream compressed_string;
    boost::iostreams::copy(in, compressed_string);

    std::cout << compressed_string.str();
}

1.46 测试

~ $ ./test | bzcat
this is a test

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