1 // Copyright Louis Dionne 2013-2017
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/extract.hpp>
6 #include <boost/hana/functional/placeholder.hpp>
7 #include <boost/hana/lazy.hpp>
8 namespace hana = boost::hana;
9 
10 
11 static_assert(hana::extract(hana::make_lazy(1)) == 1, "");
12 static_assert(hana::extract(hana::make_lazy(hana::_ + 1)(3)) == 4, "");
13 
main()14 int main() { }
15