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- /*=============================================================================
- Copyright (c) 2001-2015 Joel de Guzman
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- =============================================================================*/
- #include <boost/detail/lightweight_test.hpp>
- #include <boost/spirit/home/x3.hpp>
- #include <iostream>
- #include "test.hpp"
- int
- main()
- {
- using spirit_test::test;
- using boost::spirit::x3::eps;
- using boost::spirit::x3::unused_type;
- {
- BOOST_TEST((test("", eps)));
- BOOST_TEST((test("xxx", eps, false)));
- //~ BOOST_TEST((!test("", !eps))); // not predicate $$$ Implement me! $$$
- }
- { // test non-lazy semantic predicate
- BOOST_TEST((test("", eps(true))));
- BOOST_TEST((!test("", eps(false))));
- BOOST_TEST((test("", !eps(false))));
- }
- { // test lazy semantic predicate
- auto true_ = [](unused_type) { return true; };
- auto false_ = [](unused_type) { return false; };
- BOOST_TEST((test("", eps(true_))));
- BOOST_TEST((!test("", eps(false_))));
- BOOST_TEST((test("", !eps(false_))));
- }
- return boost::report_errors();
- }
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