2 //===----------------------------------------------------------------------===//
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
8 //===----------------------------------------------------------------------===//
10 export namespace std {
11 // [tuple.tuple], class template tuple
14 // [tuple.like], concept tuple-like
16 #if _LIBCPP_STD_VER >= 23
17 // [tuple.common.ref], common_reference related specializations
18 using std::basic_common_reference;
19 using std::common_type;
22 // [tuple.creation], tuple creation functions
25 using std::forward_as_tuple;
26 using std::make_tuple;
30 // [tuple.apply], calling a function with a tuple of arguments
33 using std::make_from_tuple;
35 // [tuple.helper], tuple helper classes
36 using std::tuple_element;
37 using std::tuple_size;
39 // [tuple.elem], element access
41 using std::tuple_element_t;
43 // [tuple.rel], relational operators
44 using std::operator==;
45 using std::operator<=>;
47 // [tuple.traits], allocator-related traits
48 using std::uses_allocator;
50 // [tuple.special], specialized algorithms
53 // [tuple.helper], tuple helper classes
54 using std::tuple_size_v;