class A { public: int i; A( int i ) { this->i = i; } ~A() {} template<class Archive> void serialize(Archive &ar, const unsigned int version) { ar & i; } }; class B { public: B() {} ~B() { std::string filename = "C:\\a2.txt"; const A a( 2 ); std::ofstream ofs( filename.c_str(), std::ios::out | std::ios::binary ); boost::archive::binary_oarchive boa( ofs ); boa << a; } static B* getInstance() { static B instance; return &instance; } void serialize() { std::string filename = "C:\\a1.txt"; const A a( 1 ); std::ofstream ofs( filename.c_str(), std::ios::out | std::ios::binary ); boost::archive::binary_oarchive boa( ofs ); boa << a; } }; int main() { B* b = B::getInstance(); b->serialize(); } When I run the above code in visual studio 2005 I get pure virtual function call error. If I comment out the line b->serialize(); then everything is ok. What is wrong with the above code??? -- View this message in context: http://www.nabble.com/pure-virtual-function-call-error-tp22434024p22434024.h... Sent from the Boost - Users mailing list archive at Nabble.com.