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optional<const T&>::rval_reference_type is now T&& (not const T&)

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This commit is contained in:
Andrzej Krzemienski
2014-05-02 18:41:23 +02:00
parent 897fdad11b
commit 86e759fb89
1 changed files with 3 additions and 1 deletions
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4
include/boost/optional/optional.hpp
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@ -26,6 +26,7 @@
#include <boost/type_traits/alignment_of.hpp>
#include <boost/type_traits/has_nothrow_constructor.hpp>
#include <boost/type_traits/type_with_alignment.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/type_traits/remove_reference.hpp>
#include <boost/type_traits/decay.hpp>
#include <boost/type_traits/is_base_of.hpp>
@ -161,7 +162,7 @@ struct types_when_is_ref
typedef raw_type& reference_const_type ;
typedef raw_type& reference_type ;
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
typedef raw_type&& rval_reference_type ;
typedef BOOST_DEDUCED_TYPENAME remove_const<raw_type>::type&& rval_reference_type ;
static reference_type move(reference_type r) { return r; }
#endif
typedef raw_type* pointer_const_type ;
@ -880,6 +881,7 @@ class optional : public optional_detail::optional_base<T>
// Assigns from a T (deep-moves the rhs value)
optional& operator= ( rval_reference_type val )
{
optional_detail::prevent_binding_rvalue_ref_to_optional_lvalue_ref<T, rval_reference_type>();
this->assign( boost::move(val) ) ;
return *this ;
}