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[boost][range] - Improved handling of temporary ranges in range algorithms.

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[SVN r63902]
This commit is contained in:
Neil Groves
2010-07-12 00:08:41 +00:00
parent db345d4e8e
commit ef000176d8
36 changed files with 649 additions and 27 deletions
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27
include/boost/range/algorithm_ext/overwrite.hpp
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@ -50,6 +50,33 @@ inline void overwrite( const SinglePassRange1& from, SinglePassRange2& to )
}
}
template< class SinglePassRange1, class SinglePassRange2 >
inline void overwrite( const SinglePassRange1& from, const SinglePassRange2& to )
{
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> ));
BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange1>::type
i = boost::begin(from), e = boost::end(from);
BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange2>::type
out = boost::begin(to);
#ifndef NDEBUG
BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange2>::type
last_out = boost::end(to);
#endif
for( ; i != e; ++out, ++i )
{
#ifndef NDEBUG
BOOST_ASSERT( out != last_out
&& "out of bounds in boost::overwrite()" );
#endif
*out = *i;
}
}
} // namespace range
using range::overwrite;
} // namespace boost