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65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2003 Daniel Nuffer
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Copyright (c) 2003 Hartmut Kaiser
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http://spirit.sourceforge.net/
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Use, modification and distribution is subject to the Boost Software
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License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#include <boost/spirit/include/classic_fixed_size_queue.hpp>
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#include <boost/mpl/assert.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <boost/concept_check.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <iostream>
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typedef BOOST_SPIRIT_CLASSIC_NS::fixed_size_queue<int, 5> queue_t;
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typedef queue_t::iterator iter_t;
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typedef queue_t::const_iterator const_iter_t;
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BOOST_CLASS_REQUIRE(const_iter_t, boost, RandomAccessIteratorConcept);
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// Right now, the iterator is not a full compliant MutableRandomAccessIterator
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// because operator[] does not return a reference. This seems a problem in
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// boost::iterator_adaptors. Anyway, this feature is not used in multi_pass
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// iterator, and this class is not really meant for public use yet.
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BOOST_CLASS_REQUIRE(iter_t, boost, RandomAccessIteratorConcept);
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int main(int, char**)
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{
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// Iterators are random access.
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BOOST_MPL_ASSERT(( boost::is_same<
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iter_t::iterator_category,
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std::random_access_iterator_tag > ));
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BOOST_MPL_ASSERT(( boost::is_same<
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const_iter_t::iterator_category,
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std::random_access_iterator_tag > ));
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queue_t q;
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const queue_t& cq = q;
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iter_t b = q.begin();
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const_iter_t c = cq.begin();
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// MSVC7.1 and EDG aren't able to compile this code for the new iterator
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// adaptors
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// The problem here is, that the old fixed_size_queue code wasn't a complete
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// and 'clean' iterator implementation, some of the required iterator concepts
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// were missing. It was never meant to be exposed outside the multi_pass. So I
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// haven't added any features while porting. The #ifdef'ed tests expose the
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// code weaknesses ((un-)fortunately only on conformant compilers, with a quite
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// good STL implementation). The simplest way to solve this issue was to switch
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// of the tests for these compilers then.
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// Check comparisons and interoperations (we are comparing
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// const and non-const iterators)
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(void) c == b;
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(void) c+4 > b;
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(void) c < b+4;
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return boost::report_errors();
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}
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