1/*=============================================================================
2 Copyright (c) 2001-2011 Hartmut Kaiser
3 Copyright (c) 2011 Bryce Lelbach
4
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7==============================================================================*/
8#if !defined(BOOST_SPIRIT_TEST_QI_BOOL)
9#define BOOST_SPIRIT_TEST_QI_BOOL
10
11#include <boost/spirit/include/qi_bool.hpp>
12
13#include <boost/spirit/include/support_argument.hpp>
14#include <boost/spirit/include/qi_char.hpp>
15#include <boost/spirit/include/qi_numeric.hpp>
16#include <boost/spirit/include/qi_directive.hpp>
17#include <boost/cstdint.hpp>
18#include "test.hpp"
19
20///////////////////////////////////////////////////////////////////////////////
21struct backwards_bool_policies : boost::spirit::qi::bool_policies<>
22{
23 // we want to interpret a 'true' spelled backwards as 'false'
24 template <typename Iterator, typename Attribute>
25 static bool
26 parse_false(Iterator& first, Iterator const& last, Attribute& attr)
27 {
28 namespace spirit = boost::spirit;
29 namespace qi = boost::spirit::qi;
30 if (qi::detail::string_parse("eurt", first, last, qi::unused))
31 {
32 spirit::traits::assign_to(false, attr); // result is false
33 return true;
34 }
35 return false;
36 }
37};
38
39///////////////////////////////////////////////////////////////////////////////
40struct test_bool_type
41{
42 test_bool_type(bool b) : b(b) {} // provide conversion
43 bool b;
44};
45
46#endif
47
48

source code of boost/libs/spirit/test/qi/bool.hpp