85 lines
2.5 KiB
Plaintext
85 lines
2.5 KiB
Plaintext
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// Boost.Range library
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//
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// Copyright Neil Groves 2009. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 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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// For more information, see http://www.boost.org/libs/range/
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//
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#ifndef BOOST_RANGE_ALGORITHM_EXT_OVERWRITE_HPP_INCLUDED
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#define BOOST_RANGE_ALGORITHM_EXT_OVERWRITE_HPP_INCLUDED
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#include <boost/range/config.hpp>
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#include <boost/range/concepts.hpp>
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#include <boost/range/difference_type.hpp>
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#include <boost/range/iterator.hpp>
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#include <boost/range/begin.hpp>
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#include <boost/range/end.hpp>
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#include <boost/assert.hpp>
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namespace boost
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{
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namespace range
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{
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template< class SinglePassRange1, class SinglePassRange2 >
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inline void overwrite( const SinglePassRange1& from, SinglePassRange2& to )
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{
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> ));
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BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange1>::type
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i = boost::begin(from), e = boost::end(from);
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BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type
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out = boost::begin(to);
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#ifndef NDEBUG
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BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type
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last_out = boost::end(to);
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#endif
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for( ; i != e; ++out, ++i )
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{
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#ifndef NDEBUG
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BOOST_ASSERT( out != last_out
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&& "out of bounds in boost::overwrite()" );
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#endif
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*out = *i;
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}
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}
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template< class SinglePassRange1, class SinglePassRange2 >
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inline void overwrite( const SinglePassRange1& from, const SinglePassRange2& to )
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{
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> ));
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BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange1>::type
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i = boost::begin(from), e = boost::end(from);
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BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange2>::type
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out = boost::begin(to);
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#ifndef NDEBUG
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BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange2>::type
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last_out = boost::end(to);
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#endif
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for( ; i != e; ++out, ++i )
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{
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#ifndef NDEBUG
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BOOST_ASSERT( out != last_out
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&& "out of bounds in boost::overwrite()" );
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#endif
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*out = *i;
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}
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}
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} // namespace range
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using range::overwrite;
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} // namespace boost
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#endif // include guard
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