54 lines
1.7 KiB
Plaintext
54 lines
1.7 KiB
Plaintext
// 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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//
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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_FILL_N_HPP_INCLUDED
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#define BOOST_RANGE_ALGORITHM_FILL_N_HPP_INCLUDED
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#include <boost/assert.hpp>
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#include <boost/concept_check.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/range/concepts.hpp>
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#include <algorithm>
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namespace boost
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{
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namespace range
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{
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/// \brief template function fill_n
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///
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/// range-based version of the fill_n std algorithm
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///
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/// \pre ForwardRange is a model of the ForwardRangeConcept
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/// \pre n <= std::distance(boost::begin(rng), boost::end(rng))
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template< class ForwardRange, class Size, class Value >
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inline ForwardRange& fill_n(ForwardRange& rng, Size n, const Value& val)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
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BOOST_ASSERT( static_cast<Size>(std::distance(boost::begin(rng), boost::end(rng))) >= n );
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std::fill_n(boost::begin(rng), n, val);
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return rng;
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}
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/// \overload
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template< class ForwardRange, class Size, class Value >
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inline const ForwardRange& fill_n(const ForwardRange& rng, Size n, const Value& val)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
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BOOST_ASSERT( static_cast<Size>(std::distance(boost::begin(rng), boost::end(rng))) >= n );
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std::fill_n(boost::begin(rng), n, val);
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return rng;
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}
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} // namespace range
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using range::fill_n;
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} // namespace boost
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#endif // include guard
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