| //===----------------------------------------------------------------------===// | |
| // | |
| // 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); | |
| } |