Hi all: I have spent a day long in finding a way of combining serialization archive with iostreams filtering_streambuf but now I encounter a strange problem, here is my code: #include <sstream> #include <boost/iostreams/device/back_inserter.hpp> #include <boost/iostreams/filtering_stream.hpp> #include <boost/iostreams/copy.hpp> #include <boost/iostreams/filter/bzip2.hpp> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> #include <boost/serialization/string.hpp> #include <boost/iostreams/stream.hpp> #include <vector> int main () { std::vector<char> store; boost::iostreams::filtering_ostreambuf out; out.push(boost::iostreams::bzip2_compressor()); out.push(boost::iostreams::back_inserter(store)); { boost::archive::binary_oarchive oa(out); oa << "abc"; // archive closed when destructors are called //out.pop ();//call before oa destroyed, crashed!!!! } out.pop ();//call after oa destroyed the behavior seems normal //out.reset (); boost::iostreams::filtering_istreambuf in; in.push(boost::iostreams::bzip2_decompressor()); in.push(boost::make_iterator_range(store)); { std::string aft; boost::archive::binary_iarchive ia(in); ia >> aft; } } if I call pop() or reset() before archive destructor called. exception in: C:\Program Files\Microsoft Visual Studio 9.0\VC\crt\src\streambuf in this member method of std::streambuf int pubsync() error message is below: Unhandled exception at 0x10499231 (msvcp90d.dll) in basic_usage.exe: 0xC0000005: Access violation reading location 0xfeeeff1e. If I call out.pop() after oa destroyed,the behavior is exactly what I want. But I just wonder why it goes in this way? Code like below { boost::archive::binary_oarchive oa(out); oa << "abc"; } out.pop ();//call after oa destroyed the behavior seems normal which appears that I have done something wrong... I'm using VS2008TS under Win2003SP2 Can anybody help?