1 /*============================================================================= 2 Copyright (c) 2018 Louis Dionne 3 4 Distributed under the Boost Software License, Version 1.0. (See accompanying 5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 6 ==============================================================================*/ 7 #include <boost/fusion/support/tag_of.hpp> 8 #include <boost/static_assert.hpp> 9 #include <boost/type_traits/is_same.hpp> 10 11 12 // Make sure tag_of can be used with an incomplete type. 13 struct incomplete; 14 typedef boost::fusion::traits::tag_of<incomplete>::type Tag; 15 BOOST_STATIC_ASSERT((boost::is_same<Tag, boost::fusion::non_fusion_tag>::value)); 16 main()17int main() { } 18