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LWG 1191

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119545 91177308-0d34-0410-b5e6-96231b3b80d8
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Howard Hinnant
2010-11-17 19:52:17 +00:00
parent 86ed8aefb2
commit cd2254b454
7 changed files with 164 additions and 0 deletions
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12
include/tuple
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@@ -88,6 +88,7 @@ template <intsize_t I, class... T> class tuple_element<I, tuple<T...>>;
// 20.4.1.5, element access:
template <intsize_t I, class... T> typename tuple_element<I, tuple<T...>>::type& get(tuple<T...>&);
template <intsize_t I, class... T> typename tuple_element<I, tuple<T...>>::type const& get(const tuple<T...>&);
template <intsize_t I, class... T> typename tuple_element<I, tuple<T...>>::type&& get(tuple<T...>&&);
// 20.4.1.6, relational operators:
template<class... T, class... U> bool operator==(const tuple<T...>&, const tuple<U...>&);
@@ -430,6 +431,8 @@ class _LIBCPP_VISIBLE tuple
typename tuple_element<_Jp, tuple<_Up...>>::type& get(tuple<_Up...>&);
template <size_t _Jp, class ..._Up> friend
const typename tuple_element<_Jp, tuple<_Up...>>::type& get(const tuple<_Up...>&);
template <size_t _Jp, class ..._Up> friend
typename tuple_element<_Jp, tuple<_Up...>>::type&& get(tuple<_Up...>&&);
public:
_LIBCPP_INLINE_VISIBILITY
@@ -583,6 +586,15 @@ get(const tuple<_Tp...>& __t)
return static_cast<const __tuple_leaf<_Ip, type>&>(__t.base_).get();
}
template <size_t _Ip, class ..._Tp>
inline _LIBCPP_INLINE_VISIBILITY
typename tuple_element<_Ip, tuple<_Tp...>>::type&&
get(tuple<_Tp...>&& __t)
{
typedef typename tuple_element<_Ip, tuple<_Tp...>>::type type;
return static_cast<__tuple_leaf<_Ip, type>&&>(__t.base_).get();
}
// tie
template <class ..._Tp>