#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()
{
static_assert(boost::asio::can_require_concept_v<object<1>, prop<1>>, "");
static_assert(boost::asio::can_require_concept_v<const object<1>, prop<1>>, "");
}