CODEWITHSUNDEEP
c++boostboost-filesystembzip2boost-iostreams
Hiesenberg
Hiesenberg

Reputation: 425

boost::iostream bzip2_decompressor not decompressing file compressed by bzip2_compressor

boost::iostream bzip2_decompressor not decompressing file compressed by bzip2_compressor

Upvotes: 1

Views: 578

Answers (1)

sehe
sehe

Reputation: 392911

Here's a simple self-contained example showing it to work:

Live On Coliru

#include <iostream>
#include <boost/iostreams/filtering_stream.hpp>
#include <boost/iostreams/copy.hpp>
#include <boost/iostreams/filter/bzip2.hpp>
#include <sstream>

namespace io = boost::iostreams;

int main()
{
    std::stringstream ss;

    {
        io::filtering_stream<io::output> of;
        of.push(io::bzip2_compressor{});
        of.push(ss);

        io::copy(std::cin, of);
    }

    std::cout << "Compressed input: " << ss.str().size() << " bytes\n";

    ss.seekg(0ul);
    {
        io::filtering_stream<io::input> if_;
        if_.push(io::bzip2_decompressor{});
        if_.push(ss);

        io::copy(if_, std::cout);
    }
}

On Coliru it shows it compresses itself to 331 bytes, and back again to stdout

Perhaps you are forgetting to flush, have non-binary, whitespace skipping. We can't tell without a SSCCE

Upvotes: 1

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