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84 lines
2.4 KiB
84 lines
2.4 KiB
// 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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