text: // Copyright Louis Dionne 2013-2016
  // Distributed under the Boost Software License, Version 1.0.
  // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  
  #include <boost/hana/any_of.hpp>
  #include <boost/hana/assert.hpp>
  #include <boost/hana/concept/struct.hpp>
  #include <boost/hana/equal.hpp>
  #include <boost/hana/integral_constant.hpp>
  #include <boost/hana/not.hpp>
  
  #include "minimal_struct.hpp"
  namespace hana = boost::hana;
  
  
  template <int i = 0>
  struct undefined { };
  
  int main() {
      BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::any_of(
          obj(),
          undefined<>{}
      )));
  
      BOOST_HANA_CONSTANT_CHECK(hana::any_of(
          obj(undefined<0>{}),
          hana::equal.to(hana::int_c<0>)
      ));
      BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::any_of(
          obj(undefined<0>{}),
          hana::equal.to(hana::int_c<1>)
      )));
  
      BOOST_HANA_CONSTANT_CHECK(hana::any_of(
          obj(undefined<0>{}, undefined<1>{}),
          hana::equal.to(hana::int_c<0>)
      ));
      BOOST_HANA_CONSTANT_CHECK(hana::any_of(
          obj(undefined<0>{}, undefined<1>{}),
          hana::equal.to(hana::int_c<1>)
      ));
      BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::any_of(
          obj(undefined<0>{}, undefined<1>{}),
          hana::equal.to(hana::int_c<2>)
      )));
  }
  