Chris@16: //  Copyright Neil Groves 2009. Use, modification and
Chris@16: //  distribution is subject to the Boost Software License, Version
Chris@16: //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: //
Chris@16: // For more information, see http://www.boost.org/libs/range/
Chris@16: //
Chris@16: #ifndef BOOST_RANGE_ALGORITHM_FILL_N_HPP_INCLUDED
Chris@16: #define BOOST_RANGE_ALGORITHM_FILL_N_HPP_INCLUDED
Chris@16: 
Chris@16: #include <boost/assert.hpp>
Chris@16: #include <boost/concept_check.hpp>
Chris@16: #include <boost/range/begin.hpp>
Chris@16: #include <boost/range/end.hpp>
Chris@16: #include <boost/range/concepts.hpp>
Chris@16: #include <algorithm>
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16:     namespace range
Chris@16:     {
Chris@16: 
Chris@16: /// \brief template function fill_n
Chris@16: ///
Chris@16: /// range-based version of the fill_n std algorithm
Chris@16: ///
Chris@16: /// \pre ForwardRange is a model of the ForwardRangeConcept
Chris@16: /// \pre n <= std::distance(boost::begin(rng), boost::end(rng))
Chris@16: template< class ForwardRange, class Size, class Value >
Chris@16: inline ForwardRange& fill_n(ForwardRange& rng, Size n, const Value& val)
Chris@16: {
Chris@16:     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
Chris@16:     BOOST_ASSERT( static_cast<Size>(std::distance(boost::begin(rng), boost::end(rng))) >= n );
Chris@16:     std::fill_n(boost::begin(rng), n, val);
Chris@16:     return rng;
Chris@16: }
Chris@16: 
Chris@16: /// \overload
Chris@16: template< class ForwardRange, class Size, class Value >
Chris@16: inline const ForwardRange& fill_n(const ForwardRange& rng, Size n, const Value& val)
Chris@16: {
Chris@16:     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
Chris@16:     BOOST_ASSERT( static_cast<Size>(std::distance(boost::begin(rng), boost::end(rng))) >= n );
Chris@16:     std::fill_n(boost::begin(rng), n, val);
Chris@16:     return rng;
Chris@16: }
Chris@16: 
Chris@16:     } // namespace range
Chris@16:     using range::fill_n;
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // include guard