1 // Copyright Abel Sinkovics (abel@sinkovics.hu) 2010. 2 // Distributed under the Boost Software License, Version 1.0. 3 // (See accompanying file LICENSE_1_0.txt or copy at 4 // http://www.boost.org/LICENSE_1_0.txt) 5 6 #include <boost/metaparse/empty.hpp> 7 #include <boost/metaparse/is_error.hpp> 8 #include <boost/metaparse/start.hpp> 9 #include <boost/metaparse/get_result.hpp> 10 11 #include "common.hpp" 12 13 #include <boost/mpl/equal_to.hpp> 14 #include <boost/mpl/apply_wrap.hpp> 15 #include <boost/mpl/assert.hpp> 16 17 #include "test_case.hpp" 18 BOOST_METAPARSE_TEST_CASE(empty)19BOOST_METAPARSE_TEST_CASE(empty) 20 { 21 using boost::metaparse::get_result; 22 using boost::metaparse::empty; 23 using boost::metaparse::start; 24 using boost::metaparse::is_error; 25 26 using boost::mpl::equal_to; 27 using boost::mpl::apply_wrap2; 28 29 typedef empty<int13> empty13; 30 31 // test_accept_empty 32 BOOST_MPL_ASSERT(( 33 equal_to<get_result<apply_wrap2<empty13, str_, start> >::type, int13> 34 )); 35 36 // test_reject_non_empty 37 BOOST_MPL_ASSERT((is_error<apply_wrap2<empty13, str_a, start> >)); 38 } 39 40