29 #ifndef _GLIBCXX_EXPERIMENTAL_TUPLE
30 #define _GLIBCXX_EXPERIMENTAL_TUPLE 1
32 #pragma GCC system_header
34 #if __cplusplus <= 201103L
42 namespace std _GLIBCXX_VISIBILITY(default)
44 namespace experimental
46 inline namespace fundamentals_v1
48 _GLIBCXX_BEGIN_NAMESPACE_VERSION
51 template <
typename _Tp>
52 constexpr
size_t tuple_size_v = tuple_size<_Tp>::value;
54 #define __cpp_lib_experimental_tuple 201402
56 template <
typename _Fn,
typename _Tuple, std::size_t... _Idx>
57 constexpr decltype(
auto)
58 __apply_impl(_Fn&& __f, _Tuple&& __t, std::
index_sequence<_Idx...>)
60 return std::__invoke(std::forward<_Fn>(__f),
61 std::get<_Idx>(std::forward<_Tuple>(__t))...);
64 template <
typename _Fn,
typename _Tuple>
65 constexpr decltype(
auto)
66 apply(_Fn&& __f, _Tuple&& __t)
70 return experimental::__apply_impl(std::forward<_Fn>(__f),
71 std::forward<_Tuple>(__t),
75 _GLIBCXX_END_NAMESPACE_VERSION
82 #endif // _GLIBCXX_EXPERIMENTAL_TUPLE
integer_sequence< size_t, _Idx...> index_sequence
Alias template index_sequence.
make_integer_sequence< size_t, _Num > make_index_sequence
Alias template make_index_sequence.