#include <boost/container_hash/hash_is_avalanching.hpp>
#include <boost/core/lightweight_test_trait.hpp>
#include <type_traits>
struct X
{
using is_avalanching = void;
};
struct Y
{
using is_avalanching = std::true_type;
};
struct Z
{
using is_avalanching = std::false_type;
};
struct W
{
};
int main()
{
using boost::hash_is_avalanching;
BOOST_TEST_TRAIT_TRUE(( hash_is_avalanching< X > ));
BOOST_TEST_TRAIT_TRUE(( hash_is_avalanching< Y > ));
BOOST_TEST_TRAIT_FALSE(( hash_is_avalanching< Z > ));
BOOST_TEST_TRAIT_FALSE(( hash_is_avalanching< W > ));
return boost::report_errors();
}