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//
// cpp14/require_concept_static.cpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2025 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include <boost/asio/require_concept.hpp>
#include <cassert>
template <int>
struct prop
{
template <typename> static constexpr bool is_applicable_property_v = true;
static constexpr bool is_requirable_concept = true;
template <typename> static constexpr bool static_query_v = true;
static constexpr bool value() { return true; }
};
template <int>
struct object
{
};
int main()
{
object<1> o1 = {};
const object<1>& o2 = boost::asio::require_concept(o1, prop<1>());
assert(&o1 == &o2);
(void)o2;
const object<1> o3 = {};
const object<1>& o4 = boost::asio::require_concept(o3, prop<1>());
assert(&o3 == &o4);
(void)o4;
constexpr object<1> o5 = boost::asio::require_concept(object<1>(), prop<1>());
(void)o5;
}
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