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Add rvalue ref overload for get() #56

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Add rvalue ref overload for get() #56

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6 changes: 6 additions & 0 deletions include/boost/optional/optional.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1197,8 +1197,14 @@ class optional
// Returns a reference to the value if this is initialized, otherwise,
// the behaviour is UNDEFINED
// No-throw
#if (!defined BOOST_NO_CXX11_REF_QUALIFIERS) && (!defined BOOST_OPTIONAL_DETAIL_NO_RVALUE_REFERENCES)
reference_const_type get() const& { BOOST_ASSERT(this->is_initialized()) ; return this->get_impl(); }
reference_type get() & { BOOST_ASSERT(this->is_initialized()) ; return this->get_impl(); }
reference_type_of_temporary_wrapper get() && { BOOST_ASSERT(this->is_initialized()) ; return boost::move(this->get_impl()); }
#else
reference_const_type get() const { BOOST_ASSERT(this->is_initialized()) ; return this->get_impl(); }
reference_type get() { BOOST_ASSERT(this->is_initialized()) ; return this->get_impl(); }
#endif // !defined BOOST_NO_CXX11_REF_QUALIFIERS

// Returns a copy of the value if this is initialized, 'v' otherwise
reference_const_type get_value_or ( reference_const_type v ) const { return this->is_initialized() ? get() : v ; }
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