Boost C++ Libraries

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Function template operator<<

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

Synopsis

// In header: <boost/variant/variant.hpp>


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.

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