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Merge move from trunk

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[SVN r78592]
This commit is contained in:
Ion Gaztañaga
2012-05-24 17:02:29 +00:00
parent 9127a41803
commit fd7aaebd3f
1 changed files with 13 additions and 13 deletions
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26
include/boost/move/move.hpp
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@@ -217,9 +217,9 @@
#if defined(BOOST_NO_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED)
//Move emulation rv breaks standard aliasing rules so add workarounds for some compilers
#ifdef __GNUC__
#define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS __attribute__((__may_alias__))
#else
#ifdef __GNUC__
#define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS __attribute__((__may_alias__))
#else
#define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS
#endif
@@ -306,10 +306,10 @@
{};
template <class T>
struct has_move_emulation_enabled_aux
struct has_move_emulation_enabled_aux
: has_move_emulation_enabled<T> {};
template <class T>
template <class T>
struct has_nothrow_move
: public BOOST_MOVE_BOOST_NS::integral_constant<bool, false>
{};
@@ -319,7 +319,7 @@
// move()
//
//////////////////////////////////////////////////////////////////////////////
template <class T>
inline typename BOOST_MOVE_BOOST_NS::disable_if<has_move_emulation_enabled_aux<T>, T&>::type move(T& x)
{
@@ -460,7 +460,7 @@
//! By default this traits returns false. Classes with non-throwing move constructor
//! and assignment should specialize this trait to obtain some performance improvements.
template <class T>
template <class T>
struct has_nothrow_move
: public BOOST_MOVE_MPL_NS::integral_constant<bool, false>
{};
@@ -494,7 +494,7 @@
//! This function provides a way to convert a reference into a rvalue reference
//! in compilers with rvalue references. For other compilers converts T & into
//! <i>::boost::rv<T> &</i> so that move emulation is activated.
template <class T>
template <class T>
rvalue_reference move (input_reference);
#elif defined(BOOST_MOVE_OLD_RVALUE_REF_BINDING_RULES)
@@ -508,7 +508,7 @@
template <class T>
inline typename remove_reference<T>::type && move(T&& t)
{ return static_cast<typename remove_reference<T>::type &&>(t); }
{ return static_cast<typename remove_reference<T>::type &&>(t); }
#endif //Old move
@@ -1222,7 +1222,7 @@ template< class T > struct remove_rvalue_reference { typedef T type; };
template< class T > struct remove_rvalue_reference< const rv<T>& > { typedef T type; };
template< class T > struct remove_rvalue_reference< volatile rv<T>& > { typedef T type; };
template< class T > struct remove_rvalue_reference< const volatile rv<T>& >{ typedef T type; };
#endif // #ifndef BOOST_NO_RVALUE_REFERENCES
#endif // #ifndef BOOST_NO_RVALUE_REFERENCES
template <typename T>
typename boost::move_detail::add_rvalue_reference<T>::type declval();
@@ -1230,7 +1230,7 @@ typename boost::move_detail::add_rvalue_reference<T>::type declval();
}
// Ideas from Boost.Move review, Jeffrey Lee Hellrung:
//
//- TypeTraits metafunctions is_lvalue_reference, add_lvalue_reference, and remove_lvalue_reference ?
//- TypeTraits metafunctions is_lvalue_reference, add_lvalue_reference, and remove_lvalue_reference ?
// Perhaps add_reference and remove_reference can be modified so that they behave wrt emulated rvalue
// references the same as wrt real rvalue references, i.e., add_reference< rv<T>& > -> T& rather than
// rv<T>& (since T&& & -> T&).
@@ -1238,7 +1238,7 @@ typename boost::move_detail::add_rvalue_reference<T>::type declval();
//- Add'l TypeTraits has_[trivial_]move_{constructor,assign}...?
//
//- An as_lvalue(T& x) function, which amounts to an identity operation in C++0x, but strips emulated
// rvalue references in C++03. This may be necessary to prevent "accidental moves".
// rvalue references in C++03. This may be necessary to prevent "accidental moves".
} //namespace boost {