Mark de Wever b9f24033f7 [libc++][C++20 modules] Enabling in C++20.
The vendors of the MSVC STL, libstdc++ and libc++ have agreed [1] to
make the C++23 modules std and std.compat available in C++20. This
provides the std module; libc++ has not implemented the std.compat
module yet.

[1] https://github.com/microsoft/STL/issues/3945

Depends on D158357

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D158358
2023-09-05 18:10:46 +02:00

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1.4 KiB
C++

// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
export namespace std {
// [tuple.tuple], class template tuple
using std::tuple;
// [tuple.like], concept tuple-like
#if _LIBCPP_STD_VER >= 23
// [tuple.common.ref], common_reference related specializations
using std::basic_common_reference;
using std::common_type;
#endif
// [tuple.creation], tuple creation functions
using std::ignore;
using std::forward_as_tuple;
using std::make_tuple;
using std::tie;
using std::tuple_cat;
// [tuple.apply], calling a function with a tuple of arguments
using std::apply;
using std::make_from_tuple;
// [tuple.helper], tuple helper classes
using std::tuple_element;
using std::tuple_size;
// [tuple.elem], element access
using std::get;
using std::tuple_element_t;
// [tuple.rel], relational operators
using std::operator==;
using std::operator<=>;
// [tuple.traits], allocator-related traits
using std::uses_allocator;
// [tuple.special], specialized algorithms
using std::swap;
// [tuple.helper], tuple helper classes
using std::tuple_size_v;
} // namespace std