ceph/src/boost/libs/hana/test/string/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/integral_constant.hpp>
   7 #include <boost/hana/is_empty.hpp>
   8 #include <boost/hana/not.hpp>
   9 #include <boost/hana/string.hpp>
  10 namespace hana = boost::hana;
  11
  12
  13 int main() {
  14     BOOST_HANA_CONSTANT_CHECK(hana::is_empty(BOOST_HANA_STRING("")));
  15     BOOST_HANA_CONSTANT_CHECK(hana::is_empty(hana::string_c<>));
  16
  17     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(BOOST_HANA_STRING("a"))));
  18     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(BOOST_HANA_STRING("ab"))));
  19     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(BOOST_HANA_STRING("abc"))));
  20     BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(hana::string_c<'a'>)));
  21 }