| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // REQUIRES: std-at-least-c++26 |
| |
| // constant_wrapper |
| |
| // [Note 1: The unnamed second template parameter to constant_wrapper is present |
| // to aid argument-dependent lookup ([basic.lookup.argdep]) in finding overloads |
| // for which constant_wrapper's wrapped value is a suitable argument, but for which |
| // the constant_wrapper itself is not. - end note] |
| |
| #include <utility> |
| |
| namespace MyNamespace { |
| struct MyType {}; |
| |
| void adl_function(MyType) {} |
| |
| } // namespace MyNamespace |
| |
| void test() { |
| std::constant_wrapper<MyNamespace::MyType{}> cw_mt; |
| adl_function(cw_mt); |
| } |
