Function template operator<<

boost::operator<< — Provides streaming output for variant types.

Synopsis

template<typename ElemType, typename Traits, typename T1, typename T2, ..., 
         typename TN> 
  std::basic_ostream<ElemType,Traits> & 
  operator<<(std::basic_ostream<ElemType,Traits> & out, 
             const variant<T1, T2, ..., TN> & rhs);

Description

Requires: Every bounded type of the variant must fulfill the requirements of the OutputStreamable concept.
Effects: Calls out << x, where x is the content of rhs.