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/always.hpp> 7 #include <boost/metaparse/digit.hpp> 8 #include <boost/metaparse/is_error.hpp> 9 #include <boost/metaparse/start.hpp> 10 #include <boost/metaparse/get_result.hpp> 11 12 #include "common.hpp" 13 14 #include <boost/mpl/apply_wrap.hpp> 15 #include <boost/mpl/assert.hpp> 16 17 #include "test_case.hpp" 18 BOOST_METAPARSE_TEST_CASE(always)19BOOST_METAPARSE_TEST_CASE(always) 20 { 21 using boost::metaparse::get_result; 22 using boost::metaparse::always; 23 using boost::metaparse::digit; 24 using boost::metaparse::start; 25 using boost::metaparse::is_error; 26 27 using boost::mpl::equal_to; 28 using boost::mpl::apply_wrap2; 29 30 typedef always<digit, int13> always_digit_13; 31 32 // test_result 33 BOOST_MPL_ASSERT(( 34 equal_to< 35 get_result<apply_wrap2<always_digit_13, str_1, start> >::type, 36 int13 37 > 38 )); 39 40 // test_fail 41 BOOST_MPL_ASSERT((is_error<apply_wrap2<always_digit_13, str_a, start> >)); 42 } 43 44