|  | // -*- 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 { | 
|  |  | 
|  | // [cmp.categories], comparison category types | 
|  | using std::partial_ordering; | 
|  | using std::strong_ordering; | 
|  | using std::weak_ordering; | 
|  |  | 
|  | // named comparison functions | 
|  | using std::is_eq; | 
|  | using std::is_gt; | 
|  | using std::is_gteq; | 
|  | using std::is_lt; | 
|  | using std::is_lteq; | 
|  | using std::is_neq; | 
|  |  | 
|  | // [cmp.common], common comparison category type | 
|  | using std::common_comparison_category; | 
|  | using std::common_comparison_category_t; | 
|  |  | 
|  | // [cmp.concept], concept three_way_comparable | 
|  | using std::three_way_comparable; | 
|  | using std::three_way_comparable_with; | 
|  |  | 
|  | // [cmp.result], result of three-way comparison | 
|  | using std::compare_three_way_result; | 
|  |  | 
|  | using std::compare_three_way_result_t; | 
|  |  | 
|  | // [comparisons.three.way], class compare_three_way | 
|  | using std::compare_three_way; | 
|  |  | 
|  | // [cmp.alg], comparison algorithms | 
|  | inline namespace __cpo { | 
|  | using std::__cpo::compare_partial_order_fallback; | 
|  | using std::__cpo::compare_strong_order_fallback; | 
|  | using std::__cpo::compare_weak_order_fallback; | 
|  | using std::__cpo::partial_order; | 
|  | using std::__cpo::strong_order; | 
|  | using std::__cpo::weak_order; | 
|  | } // namespace __cpo | 
|  |  | 
|  | } // namespace std |