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Implement LWG Paper n3887: Consistent Metafunction Aliases. This adds std::tuple_element_t<> as an alias for tuple_element<>::type. Clean up the synopsis for tuple_element in <utility> as well.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@202673 91177308-0d34-0410-b5e6-96231b3b80d8
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Marshall Clow
2014-03-03 06:18:11 +00:00
parent 3fef95b10d
commit 50fe0c7d61
4 changed files with 28 additions and 14 deletions
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24
include/utility
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@@ -101,30 +101,30 @@ constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t();
template <class T> class tuple_size;
template <size_t I, class T> class tuple_element;
template <class T1, class T2> struct tuple_size<std::pair<T1, T2> >;
template <class T1, class T2> struct tuple_element<0, std::pair<T1, T2> >;
template <class T1, class T2> struct tuple_element<1, std::pair<T1, T2> >;
template <class T1, class T2> struct tuple_size<pair<T1, T2> >;
template <class T1, class T2> struct tuple_element<0, pair<T1, T2> >;
template <class T1, class T2> struct tuple_element<1, pair<T1, T2> >;
template<size_t I, class T1, class T2>
typename tuple_element<I, std::pair<T1, T2> >::type&
get(std::pair<T1, T2>&) noexcept; // constexpr in C++14
typename tuple_element<I, pair<T1, T2> >::type&
get(pair<T1, T2>&) noexcept; // constexpr in C++14
template<size_t I, class T1, class T2>
const typename const tuple_element<I, std::pair<T1, T2> >::type&
get(const std::pair<T1, T2>&) noexcept; // constexpr in C++14
const typename const tuple_element<I, pair<T1, T2> >::type&
get(const pair<T1, T2>&) noexcept; // constexpr in C++14
template<size_t I, class T1, class T2>
typename tuple_element<I, std::pair<T1, T2> >::type&&
get(std::pair<T1, T2>&&) noexcept; // constexpr in C++14
typename tuple_element<I, pair<T1, T2> >::type&&
get(pair<T1, T2>&&) noexcept; // constexpr in C++14
template<class T1, class T2>
constexpr T1& get(std::pair<T1, T2>&) noexcept; // C++14
constexpr T1& get(pair<T1, T2>&) noexcept; // C++14
template<size_t I, class T1, class T2>
constexpr T1 const& get(std::pair<T1, T2> const &) noexcept; // C++14
constexpr T1 const& get(pair<T1, T2> const &) noexcept; // C++14
template<size_t I, class T1, class T2>
constexpr T1&& get(std::pair<T1, T2>&&) noexcept; // C++14
constexpr T1&& get(pair<T1, T2>&&) noexcept; // C++14
// C++14