ceph/src/boost/libs/hana/example/replicate.cpp

   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/equal.hpp>
   6 #include <boost/hana/integral_constant.hpp>
   7 #include <boost/hana/optional.hpp>
   8 #include <boost/hana/replicate.hpp>
   9 #include <boost/hana/tuple.hpp>
  10 namespace hana = boost::hana;
  11
  12
  13 static_assert(hana::replicate<hana::tuple_tag>('x', hana::size_c<2>) == hana::make_tuple('x', 'x'), "");
  14
  15 // Of course, there can't be more than one element in an `optional`.
  16 static_assert(hana::replicate<hana::optional_tag>('x', hana::size_c<2>) == hana::just('x'), "");
  17
  18 int main() { }