|  | // -*- 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 { | 
|  | // [variant.variant], class template variant | 
|  | using std::variant; | 
|  |  | 
|  | // [variant.helper], variant helper classes | 
|  | using std::variant_alternative; | 
|  | using std::variant_npos; | 
|  | using std::variant_size; | 
|  | using std::variant_size_v; | 
|  |  | 
|  | // [variant.get], value access | 
|  | using std::get; | 
|  | using std::get_if; | 
|  | using std::holds_alternative; | 
|  | using std::variant_alternative_t; | 
|  |  | 
|  | // [variant.relops], relational operators | 
|  | using std::operator==; | 
|  | using std::operator!=; | 
|  | using std::operator<; | 
|  | using std::operator>; | 
|  | using std::operator<=; | 
|  | using std::operator>=; | 
|  | using std::operator<=>; | 
|  |  | 
|  | // [variant.visit], visitation | 
|  | using std::visit; | 
|  |  | 
|  | // [variant.monostate], class monostate | 
|  | using std::monostate; | 
|  |  | 
|  | // [variant.specalg], specialized algorithms | 
|  | using std::swap; | 
|  |  | 
|  | // [variant.bad.access], class bad_variant_access | 
|  | using std::bad_variant_access; | 
|  |  | 
|  | // [variant.hash], hash support | 
|  | using std::hash; | 
|  | } // namespace std |