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8e5b8025d8
Reverted: 2e099caceb9..21102938e8ccb I'm going to reapply some of them soon, but it's easier to revert them all first, as there are conflicts. Also the number of changes that were inserted since then, mean that there would be a huge gap between related changes.
94 lines
2.9 KiB
C++
Executable File
94 lines
2.9 KiB
C++
Executable File
// Copyright David Abrahams 2003. Use, modification and distribution is
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// subject to the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <deque>
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#include <iterator>
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#include <iostream>
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#include <boost/static_assert.hpp>
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#include <boost/noncopyable.hpp>
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#include <boost/type_traits/broken_compiler_spec.hpp>
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#include <boost/iterator/is_readable_iterator.hpp>
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#include <boost/iterator.hpp>
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// Last, for BOOST_NO_LVALUE_RETURN_DETECTION
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#include <boost/iterator/detail/config_def.hpp>
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struct v
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{
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v();
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~v();
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};
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BOOST_TT_BROKEN_COMPILER_SPEC(v)
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struct value_iterator : boost::iterator<std::input_iterator_tag,v>
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{
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v operator*() const;
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};
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struct noncopyable_iterator : boost::iterator<std::forward_iterator_tag,boost::noncopyable>
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{
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boost::noncopyable const& operator*() const;
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};
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struct proxy_iterator : boost::iterator<std::output_iterator_tag,v>
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{
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#if BOOST_WORKAROUND(__GNUC__, == 2)
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typedef boost::iterator<std::input_iterator_tag,v> base;
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typedef base::iterator_category iterator_category;
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typedef base::value_type value_type;
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typedef base::difference_type difference_type;
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typedef base::pointer pointer;
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typedef base::reference reference;
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#endif
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struct proxy
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{
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operator v&();
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proxy& operator=(v) const;
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};
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proxy operator*() const;
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};
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struct proxy_iterator2 : boost::iterator<std::output_iterator_tag,v>
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{
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#if BOOST_WORKAROUND(__GNUC__, == 2)
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typedef boost::iterator<std::input_iterator_tag,v> base;
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typedef base::iterator_category iterator_category;
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typedef base::value_type value_type;
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typedef base::difference_type difference_type;
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typedef base::pointer pointer;
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typedef base::reference reference;
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#endif
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struct proxy
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{
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proxy& operator=(v) const;
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};
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proxy operator*() const;
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};
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BOOST_TT_BROKEN_COMPILER_SPEC(proxy_iterator::proxy)
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int main()
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{
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BOOST_STATIC_ASSERT(boost::is_readable_iterator<v*>::value);
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BOOST_STATIC_ASSERT(boost::is_readable_iterator<v const*>::value);
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BOOST_STATIC_ASSERT(boost::is_readable_iterator<std::deque<v>::iterator>::value);
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BOOST_STATIC_ASSERT(boost::is_readable_iterator<std::deque<v>::const_iterator>::value);
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BOOST_STATIC_ASSERT(!boost::is_readable_iterator<std::back_insert_iterator<std::deque<v> > >::value);
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BOOST_STATIC_ASSERT(!boost::is_readable_iterator<std::ostream_iterator<v> >::value);
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BOOST_STATIC_ASSERT(boost::is_readable_iterator<proxy_iterator>::value);
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BOOST_STATIC_ASSERT(!boost::is_readable_iterator<proxy_iterator2>::value);
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BOOST_STATIC_ASSERT(boost::is_readable_iterator<value_iterator>::value);
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// Make sure inaccessible copy constructor doesn't prevent
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// readability
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BOOST_STATIC_ASSERT(boost::is_readable_iterator<noncopyable_iterator>::value);
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return 0;
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}
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