Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the develop branch, built from commit f54e8f3a93.
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Detailed semantics

template <class CharType, class CharTrait, class T>
std::basic_ostream<CharType, CharTrait>& [br] operator<<(std::basic_ostream<CharType, CharTrait>& out, optional<T> const& v);

space

template <class CharType, class CharTrait, class T>
std::basic_ostream<CharType, CharTrait>& [br] operator<<(std::basic_ostream<CharType, CharTrait>& out, none_t);

space

template <class CharType, class CharTrait, class T>
std::basic_ostream<CharType, CharTrait>& [br] operator>>(std::basic_istream<CharType, CharTrait>& in, optional<T>& v);


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