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9546051
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0
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2012-03-03T12:14:20.607
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2012-03-03T12:14:20.607
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<p>If you want to stick with boost::any i am not sure but you can write your own "boost::any". I'm using this code for proxy methods to pass the parameters.</p> <pre><code>#include <iostream> #include <boost\smart_ptr\scoped_ptr.hpp> #include <boost/shared_ptr.hpp> #include <boost/serialization/access.hpp> #include <boost/serialization/shared_ptr.hpp> #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/serialization/export.hpp> #include <sstream> class my_placeholder { public: virtual ~my_placeholder(){} my_placeholder(){} private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { // serialize base class information //ar & boost::serialization::base_object<bus_stop>(*this); //ar & m_placeholder; } }; template<typename T> class my_derivedplaceholder: public my_placeholder { public: my_derivedplaceholder() { } my_derivedplaceholder(T &value) { m_value=value; } T m_value; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { // serialize base class information ar & boost::serialization::base_object<my_placeholder>(*this); ar & m_value; } }; BOOST_CLASS_EXPORT_GUID(my_derivedplaceholder<int>, "p<int>"); class my_any { public: my_any() { } template<typename T> my_any(const T &value) { m_placeholder.reset(new my_derivedplaceholder<T>(const_cast<T&>(value))); } template<typename T> void operator=(const T &value) { m_placeholder.reset(new my_derivedplaceholder<T>(const_cast<T&>(value))); } protected: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { // serialize base class information //ar & boost::serialization::base_object<bus_stop>(*this); ar & m_placeholder; } template<typename T> friend T my_anycast(my_any &val); boost::shared_ptr<my_placeholder> m_placeholder; }; template<typename T> T my_anycast(my_any &val) { boost::shared_ptr<my_derivedplaceholder<T>> concrete=boost::dynamic_pointer_cast<my_derivedplaceholder<T>>(val.m_placeholder); if (concrete.get()==NULL) throw std::invalid_argument("Not convertible"); return concrete->m_value; } void main() { my_any m=10; int a=my_anycast<int>(m); std::cout << a << std::endl; std::stringstream ss,ss2; boost::archive::text_oarchive oa(ss); oa << m; boost::archive::text_iarchive ia(ss); my_any m2; ia >> m2; std::cout << my_anycast<int>(m2) << std::endl; } </code></pre>
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1. POC++ - boost::any serialization
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1. USalternate to boost any
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