Re: [Boost-users] Problem with binary serialization using std::wstring

Before we get too serious, a) double check that you're opening the stream with binary switch b) check the TRAC data base. There is a ticket which refers to wstring serialization in non-w archives. Check to see if this is your situation. Robert Ramey Macumber, Daniel wrote:

My project is using std::wstring extensively and I have been able to get both the text and xml serialization archives to work with it. However, I am getting a stream_error when trying to deserialize objects written to a binary archive. I think the serialization may be missing some objects. I have tracked the problem down to serializing a std::map where IddKey is a class that supports serialization and iStringCompare is:

struct iStringCompare{ bool operator()(const std::wstring& x, const std::wstring& y) const{ return boost::lexicographical_compare(x, y, boost::is_iless()); }; };

I have tried to replicate this problem in a simple test case to submit but have not been able to reproduce it outside of my real code. Here is the code that serializes to a binary archive:

boost::filesystem::wpath path = iddPath; path.replace_extension(L"idd.bin");

{ boost::filesystem::ofstream ofs(path); boost::archive::binary_oarchive out(ofs); out << iddFilePtr; }

IddFilePtr newIddFilePtr;

{ boost::filesystem::ifstream ifs(path); boost::archive::binary_iarchive in(ifs); in >> newIddFilePtr; }

I am not using binary_woarchive or binary_wiarchive because they don't compile with shared_ptr serialization and I have seen that you are not really supposed to use them. I am using the wstring versions of the text and xml archives that are working. Does anyone have any suggestions on how to track down my problem?

Dan