ceph/src/boost/libs/hana/example/ext/std/array/orderable.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/ext/std/array.hpp>
   6 #include <boost/hana/less.hpp>
   7
   8 #include <array>
   9 namespace hana = boost::hana;
  10
  11
  12 constexpr std::array<int, 4> evens = {{2, 4, 6, 8}};
  13 constexpr std::array<int, 4> odds = {{1, 3, 5, 7}};
  14
  15 constexpr std::array<int, 5> up_to_5 = {{1, 2, 3, 4, 5}};
  16
  17 // arrays with same length
  18 static_assert(hana::less(odds, evens), "");
  19
  20 // arrays with different lengths
  21 static_assert(hana::less(up_to_5, odds), "");
  22
  23 int main() { }