Searched refs:has_value (Results 1 – 1 of 1) sorted by relevance
71 if( has_value() ) in value()77 bool has_value() const { return m_data->m_value; } in has_value() function in boost::BOOST_RT_PARAM_NAMESPACE::environment::variable_base119 if( !has_value() ) in operator =()136 if( v.has_value() ) in operator <<()148 return ev.has_value() && ev.value() == v; in operator ==()157 return ev.has_value() && ev.value() == v; in operator ==()166 return !ev.has_value() || ev.value() != v; in operator !=()175 return !ev.has_value() || ev.value() != v; in operator !=()