-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users- bounces@lists.boost.org] On Behalf Of Nat Goodspeed Sent: Thursday, October 12, 2006 11:40 AM To: boost-users@lists.boost.org Subject: Re: [Boost-users] [Serialization] Serializing to a void * and asize?
[Nat] Are you familiar with the std::ostringstream::str() method?
That's what I needed! I need to read up on streams (obviously). I had seen that function before, but I guess I was stuck in the mind-set that there would be a problem if there was a zero in the "string". I played around with it and it work just fine! Thanks a bunch Nat, you've been a big help. Glad it was a simple solution. And while I'm at it, thanks to Robert for making the library in the first place! V/R, Daniel And for completeness, here is the code: #include <sstream> #include <string> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> #include <boost/serialization/binary_object.hpp> // A very simple test class with some data in it class A { private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int /* file_version */){ ar & x; ar & y; ar & z; } public: A::A(){ x = 0; y = 0; z = 0; } // default constructor bool operator == (const A & RHS) { return ((x == RHS.x) && (y == RHS.y) && (z == RHS.z)); } int x; int y; int z; }; int main(int argc, char *argv[]) { // Create an object on the heap A * pA = new A; pA->x = 1234567890; pA->y = 0; pA->z = 987654321; // serialize it std::ostringstream sTestBinary1; boost::archive::binary_oarchive oa(sTestBinary1); oa << *pA; // Get the size of the buffer and a pointer to it std::string sBuff = sTestBinary1.str(); size_t iSize = sBuff.size(); // ?? How do I get the size ?? void * pVoid = (void *)sBuff.c_str(); // ?? Is this the right pointer ?? // .. Magic occurs here (IE, gets sent across the network as the raw data) std::string InBuff((char *)pVoid, iSize); // Create a stream to read from std::istringstream sTestBinary2; sTestBinary2.str(InBuff); // open the archive boost::archive::binary_iarchive ia(sTestBinary2); // restore the object from the archive A * pB = new A; // pB->x equals 0 now ia >> *pB; // Make sure the objects contain the same data assert(*pA == *pB); return 0; } ********************************************************************************************** Disclaimer - This email and any files transmitted with it are proprietary and may contain privileged or copyright information. You must not present this message to another party without gaining permission from the sender. If you are not the intended recipient you must not copy, distribute or use this email or the information contained in it for any purpose other than to notify us. If you have received this message in error, please notify the sender immediately, and delete this email from your system. We do not guarantee that this material is free from viruses or any other defects although due care has been taken to minimize the risk. eSafe scanned this email for viruses, vandals and malicious contentAny views expressed in this message are those of the individual sender, except where the sender specifically states them to be the views of LSI. **********************************************************************************************