1// Copyright Louis Dionne 2013-2022
2// Distributed under the Boost Software License, Version 1.0.
3// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
4
5#include <boost/hana/assert.hpp>
6#include <boost/hana/hash.hpp>
7#include <boost/hana/not_equal.hpp>
8#include <boost/hana/string.hpp>
9namespace hana = boost::hana;
10
11
12// `hana::hash` returns a type uniquely representing the string. The hash is
13// perfect, meaning no two different strings have the same hash value.
14BOOST_HANA_CONSTANT_CHECK(hana::not_equal(
15 hana::hash(BOOST_HANA_STRING("abcdef")),
16 hana::hash(BOOST_HANA_STRING("abcdefg"))
17));
18
19int main() { }
20

source code of boost/libs/hana/example/string/hashable.cpp