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- // Copyright Louis Dionne 2013-2017
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
- #include <boost/hana/assert.hpp>
- #include <boost/hana/functional/overload_linearly.hpp>
- #include <string>
- namespace hana = boost::hana;
- auto f = hana::overload_linearly(
- [](int i) { return i + 1; },
- [](std::string s) { return s + "d"; },
- [](double) { BOOST_HANA_RUNTIME_CHECK(false && "never called"); }
- );
- int main() {
- BOOST_HANA_RUNTIME_CHECK(f(1) == 2);
- BOOST_HANA_RUNTIME_CHECK(f("abc") == "abcd");
- BOOST_HANA_RUNTIME_CHECK(f(2.2) == static_cast<int>(2.2) + 1);
- }
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