ceph/src/boost/libs/hana/test/range/is_empty.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/assert.hpp>
   6 #include <boost/hana/core/make.hpp>
   7 #include <boost/hana/integral_constant.hpp>
   8 #include <boost/hana/is_empty.hpp>
   9 #include <boost/hana/not.hpp>
  10 #include <boost/hana/range.hpp>
  11 namespace hana = boost::hana;
  12
  13
  14 int main() {
  15     BOOST_HANA_CONSTANT_CHECK(hana::is_empty(
  16         hana::make_range(hana::int_c<0>, hana::int_c<0>)
  17     ));
  18
  19     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(
  20         hana::make_range(hana::int_c<0>, hana::int_c<1>)
  21     )));
  22
  23     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(
  24         hana::make_range(hana::int_c<0>, hana::int_c<2>)
  25     )));
  26 }