[Boost-users] Boost Variant OutputStreamable

I have started using Boost recently, and though I should switch my own variant to the Boost Variant . However I cannot compile the following code #include<iostream> #include<vector> #include<string> #include std::basic_ostream<char> &operator<<(std::basic_ostream<char> &theostream,const std::vector<unsigned long> &theVector) { for(unsigned long i(0);i

BoostVariant;

}; typedef TpTemplateVariant::BoostVariant Tpvariant; int main () { Tpvariant p(5); std::cout << p; return 0; } The error I get is error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'const T5'