Re: [Boost-users] [serialization]-- (corrected) serialize binary data to a memory buffer?

From: Rich Peters (rpeters_at_[hidden])
Date: 2007-10-18 12:16:13

I have been having some issues trying to get this relatively simple binary
memory based serialization to work.
If I use a byte type below, I get errors with not finding a matching ctor:
If I use a char, it compiles and thows an exception in
binary_iarchive_impl.hpp at line 52:

          this->basic_binary_iarchive<Archive>::init();

which appears to be related to char string processing.

can anyone help me sort this out?

thanks
Rich

======================
#include <boost/archive/binary_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
#include <boost/iostreams/device/array.hpp>
#include <boost/iostreams/stream_buffer.hpp>
#include <boost/iostreams/stream.hpp>
....

    std::vector<byte> store(1000, 0x00) ;
//  std::vector<char> store(1000, 0x00) ; // other  test
    boost::iostreams::stream <boost::iostreams::array > theStream(&store[0],
&store[0]+store.size()) ;
    // save data to archive
    {
        boost::archive::binary_oarchive oa(theStream);
        oa & theInfo;
        // archive closed when destructors are called
    }

c:\Program Files\boost\boost_1_34_1\boost\iostreams\stream.hpp(112) : error
C2665: 'boost::iostreams::basic_array<Ch>::__ctor' : none of the 5 overloads
can convert parameter 1 from type 'unsigned char *__w64 const '
        with
        [
            Ch=char
        ]
        and
        [
            Ch=char
        ]
        c:\Program
Files\boost\boost_1_34_1\boost\iostreams\device\array.hpp(90): could be
'boost::iostreams::basic_array<Ch>::basic_array(boost::iostreams::basic_array<Ch>::char_type
*,boost::iostreams::basic_array<Ch>::char_type *)'
        with
        [
            Ch=char
        ]
        c:\Program
Files\boost\boost_1_34_1\boost\iostreams\device\array.hpp(90): or
'boost::iostreams::basic_array<Ch>::basic_array(boost::iostreams::basic_array<Ch>::char_type
*,size_t)'
        with
        [
            Ch=char
        ]
        c:\Program
Files\boost\boost_1_34_1\boost\iostreams\device\array.hpp(90): or
'boost::iostreams::basic_array<Ch>::basic_array(const
boost::iostreams::basic_array<Ch>::char_type *,const
boost::iostreams::basic_array<Ch>::char_type *)'
        with
        [
            Ch=char
        ]
        c:\Program
Files\boost\boost_1_34_1\boost\iostreams\device\array.hpp(90): or
'boost::iostreams::basic_array<Ch>::basic_array(const
boost::iostreams::basic_array<Ch>::char_type *,size_t)'
        with
        [
            Ch=char
        ]
        while trying to match the argument list '(unsigned char *__w64 const
, unsigned char *__w64 const )'
        c:\Dev\Shared-ADL
Integration\UnitTest\BoostSerialization\BoostSerialization\Serialize.h(194)
: see reference to function template instantiation
'boost::iostreams::stream<Device>::stream<std::allocator<_Ty>::value_type*__w64
,std::allocator<_Ty>::value_type*__w64 >(const U0 & ,const U1 & )' being
compiled
        with
        [
            Device=boost::iostreams::array,
            _Ty=unsigned char,
            U0=std::allocator<unsigned char>::value_type *__w64 ,
            U1=std::allocator<unsigned char>::value_type *__w64
        ]

thanks
Rich

Matthias Troyer wrote:

You can use the Boost IOstreams library to create an iostream using a
memory buffer and use that with the binary archives

Matthias