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//===----------------------------------------------------------------------===//
//
// 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;
}
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