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[boost][range] - Update to relax preconditions for the strided adaptor, and numerous fixes to inspection report issues.

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[SVN r67419]
This commit is contained in:
Neil Groves
2010-12-22 22:36:43 +00:00
parent 612cec17bb
commit d68174a51d
12 changed files with 502 additions and 113 deletions
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49
include/boost/range/size.hpp Executable file → Normal file
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@ -15,20 +15,55 @@
# pragma once
#endif
#include <boost/iterator/iterator_categories.hpp>
#include <boost/range/begin.hpp>
#include <boost/range/end.hpp>
#include <boost/range/difference_type.hpp>
#include <boost/assert.hpp>
namespace boost
namespace boost
{
template< class T >
inline BOOST_DEDUCED_TYPENAME range_difference<T>::type size( const T& r )
namespace range_detail
{
BOOST_ASSERT( (boost::end( r ) - boost::begin( r )) >= 0 &&
"reachability invariant broken!" );
return boost::end( r ) - boost::begin( r );
template< class SinglePassRange >
inline BOOST_DEDUCED_TYPENAME range_difference<SinglePassRange>::type
size_impl(const SinglePassRange& rng, boost::single_pass_traversal_tag)
{
typedef BOOST_DEDUCED_TYPENAME range_difference<SinglePassRange>::type diff_t;
// A compilation error here will often indicate that an algorithm
// is attempting to use boost::size(rng) for a range that is not a
// model of the RandomAccessRange Concept and does not have a
// member size() function.
// The solution to this issue is to add a range_calculate_size()
// function for the range type that will be found via ADL.
return static_cast<diff_t>(rng.size());
}
template< class SinglePassRange >
inline BOOST_DEDUCED_TYPENAME range_difference<SinglePassRange>::type
size_impl(const SinglePassRange& rng, boost::random_access_traversal_tag)
{
BOOST_ASSERT( (boost::end(rng) - boost::begin(rng)) >= 0 &&
"reachability invariant broken!" );
return boost::end(rng) - boost::begin(rng);
}
} // namespace range_detail
template<class SinglePassRange>
inline BOOST_DEDUCED_TYPENAME range_difference<SinglePassRange>::type
range_calculate_size(const SinglePassRange& rng)
{
typedef BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange>::type iter_t;
typedef BOOST_DEDUCED_TYPENAME iterator_traversal<iter_t>::type traversal_tag;
return range_detail::size_impl(rng, traversal_tag());
}
template<class SinglePassRange>
inline BOOST_DEDUCED_TYPENAME range_difference<SinglePassRange>::type
size(const SinglePassRange& rng)
{
return range_calculate_size(rng);
}
} // namespace 'boost'