1214     int integer_key() const { return my_key; }  in integer_key()  function in HeterogeneousKey
1240         return my_hash_object(key.integer_key());  in hash()
1253         return key1 == key2.integer_key();  in equal()
1258         return key1.integer_key() == key2;  in equal()
1263         return key1.integer_key() == key2.integer_key();  in equal()
1319     REQUIRE_MESSAGE(cacc->first.integer_key() == 1, "Incorrect accessor returned");  in test_heterogeneous_find()
1328     REQUIRE_MESSAGE(acc->first.integer_key() == 1, "Incorrect accessor returned");  in test_heterogeneous_find()
1398     REQUIRE(regular_result.first->first.integer_key() == 1);  in test_heterogeneous_equal_range()
1427     REQUIRE_MESSAGE(cacc->first.integer_key() == 1, "Incorrect accessor");  in test_heterogeneous_insert()
1434     REQUIRE_MESSAGE(cacc->first.integer_key() == 1, "Incorrect accessor");  in test_heterogeneous_insert()
1441     REQUIRE_MESSAGE(acc->first.integer_key() == 2, "Incorrect accessor");  in test_heterogeneous_insert()
1448     REQUIRE_MESSAGE(acc->first.integer_key() == 2, "Incorrect accessor");  in test_heterogeneous_insert()