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noexcept for <utility>. This included a little repair on pair, and some noexcept workarounds.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@132186 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2011-05-27 15:04:19 +00:00
parent 1e15fd1856
commit e9b2c2d669
3 changed files with 80 additions and 29 deletions
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20
include/type_traits
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@@ -1296,7 +1296,7 @@ struct is_destructible
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
typename remove_reference<_Tp>::type&&
move(_Tp&& __t)
move(_Tp&& __t) _NOEXCEPT
{
typedef typename remove_reference<_Tp>::type _Up;
return static_cast<_Up&&>(__t);
@@ -1305,7 +1305,7 @@ move(_Tp&& __t)
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp&&
forward(typename std::remove_reference<_Tp>::type& __t)
forward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT
{
return static_cast<_Tp&&>(__t);
}
@@ -1313,7 +1313,7 @@ forward(typename std::remove_reference<_Tp>::type& __t)
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp&&
forward(typename std::remove_reference<_Tp>::type&& __t)
forward(typename std::remove_reference<_Tp>::type&& __t) _NOEXCEPT
{
static_assert(!std::is_lvalue_reference<_Tp>::value,
"Can not forward an rvalue as an lvalue.");
@@ -3000,13 +3000,25 @@ struct __invoke_of
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(_Tp& __x, _Tp& __y)
swap(_Tp& __x, _Tp& __y) _NOEXCEPT_(is_nothrow_move_constructible<_Tp>::value &&
is_nothrow_move_assignable<_Tp>::value)
{
_Tp __t(_STD::move(__x));
__x = _STD::move(__y);
__y = _STD::move(__t);
}
template <class _ForwardIterator1, class _ForwardIterator2>
inline _LIBCPP_INLINE_VISIBILITY
void
iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b)
// _NOEXCEPT_(_NOEXCEPT_(swap(*__a, *__b)))
_NOEXCEPT_(_NOEXCEPT_(swap(*_STD::declval<_ForwardIterator1>(),
*_STD::declval<_ForwardIterator2>())))
{
swap(*__a, *__b);
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_TYPE_TRAITS