1 /*=============================================================================
2 Copyright (c) 2001-2003 Daniel Nuffer
3 Copyright (c) 2003 Hartmut Kaiser
4 http://spirit.sourceforge.net/
5
6 Use, modification and distribution is subject to the Boost Software
7 License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
8 http://www.boost.org/LICENSE_1_0.txt)
9 =============================================================================*/
10 #include <boost/spirit/include/classic_fixed_size_queue.hpp>
11 #include <boost/mpl/assert.hpp>
12 #include <boost/type_traits/is_same.hpp>
13 #include <boost/concept_check.hpp>
14 #include <boost/detail/lightweight_test.hpp>
15 #include <iostream>
16
17 typedef BOOST_SPIRIT_CLASSIC_NS::fixed_size_queue<int, 5> queue_t;
18 typedef queue_t::iterator iter_t;
19 typedef queue_t::const_iterator const_iter_t;
20 BOOST_CLASS_REQUIRE(const_iter_t, boost, RandomAccessIteratorConcept);
21
22 // Right now, the iterator is not a full compliant MutableRandomAccessIterator
23 // because operator[] does not return a reference. This seems a problem in
24 // boost::iterator_adaptors. Anyway, this feature is not used in multi_pass
25 // iterator, and this class is not really meant for public use yet.
26 BOOST_CLASS_REQUIRE(iter_t, boost, RandomAccessIteratorConcept);
27
main(int,char **)28 int main(int, char**)
29 {
30 // Iterators are random access.
31 BOOST_MPL_ASSERT(( boost::is_same<
32 iter_t::iterator_category,
33 std::random_access_iterator_tag > ));
34 BOOST_MPL_ASSERT(( boost::is_same<
35 const_iter_t::iterator_category,
36 std::random_access_iterator_tag > ));
37
38 queue_t q;
39 const queue_t& cq = q;
40
41 iter_t b = q.begin();
42 const_iter_t c = cq.begin();
43
44 // MSVC7.1 and EDG aren't able to compile this code for the new iterator
45 // adaptors
46
47 // The problem here is, that the old fixed_size_queue code wasn't a complete
48 // and 'clean' iterator implementation, some of the required iterator concepts
49 // were missing. It was never meant to be exposed outside the multi_pass. So I
50 // haven't added any features while porting. The #ifdef'ed tests expose the
51 // code weaknesses ((un-)fortunately only on conformant compilers, with a quite
52 // good STL implementation). The simplest way to solve this issue was to switch
53 // of the tests for these compilers then.
54
55 // Check comparisons and interoperations (we are comparing
56 // const and non-const iterators)
57
58 (void) c == b;
59 (void) c+4 > b;
60 (void) c < b+4;
61
62 return boost::report_errors();
63 }
64
65