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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)
5 #include <boost/hana/bool.hpp>
8 namespace hana
= boost::hana
;
14 auto identity(X x
) { return x
; }
16 auto x
= identity(hana::bool_c
<true>);
17 static_assert(hana::value(x
), "");
25 std::cout
<< "Good luck in evaluating this at compile-time!";
31 auto x
= identity(hana::bool_c
<true>);
32 static_assert(hana::value(x
), "");