//===----------------------------------------------------------------------===// // // 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 // //===----------------------------------------------------------------------===// // UNSUPPORTED: c++98, c++03, c++11 // <propagate_const> // template <class T> struct hash<experimental::fundamentals_v2::propagate_const<T>>; #include <experimental/propagate_const> #include "test_macros.h" #include "propagate_const_helpers.h" #include <cassert> using std::experimental::propagate_const; namespace std { template <> struct hash<X> { typedef X first_argument_type; size_t operator()(const first_argument_type&) const { return 99; } }; } // namespace std int main(int, char**) { typedef propagate_const<X> P; P p(1); auto h = std::hash<P>(); assert(h(p)==99); return 0; }