1 | // Boost.Range library |
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2 | // |
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3 | // Copyright Neil Groves 2009. Use, modification and |
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4 | // distribution is subject to the Boost Software License, Version |
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5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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6 | // http://www.boost.org/LICENSE_1_0.txt) |
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7 | // |
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8 | // For more information, see http://www.boost.org/libs/range/ |
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9 | // |
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10 | #ifndef BOOST_RANGE_ALGORITHM_EXT_IOTA_HPP_INCLUDED |
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11 | #define BOOST_RANGE_ALGORITHM_EXT_IOTA_HPP_INCLUDED |
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12 | |
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13 | #include <boost/range/config.hpp> |
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14 | #include <boost/range/concepts.hpp> |
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15 | #include <boost/range/iterator.hpp> |
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16 | #include <boost/range/begin.hpp> |
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17 | #include <boost/range/end.hpp> |
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18 | |
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19 | namespace boost |
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20 | { |
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21 | namespace range |
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22 | { |
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23 | |
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24 | template< class ForwardRange, class Value > |
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25 | inline ForwardRange& iota( ForwardRange& rng, Value x ) |
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26 | { |
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27 | BOOST_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> )); |
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28 | typedef BOOST_DEDUCED_TYPENAME range_iterator<ForwardRange>::type iterator_t; |
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29 | |
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30 | iterator_t last_target = ::boost::end(rng); |
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31 | for (iterator_t target = ::boost::begin(rng); target != last_target; ++target, ++x) |
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32 | *target = x; |
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33 | |
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34 | return rng; |
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35 | } |
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36 | |
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37 | template< class ForwardRange, class Value > |
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38 | inline const ForwardRange& iota( const ForwardRange& rng, Value x ) |
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39 | { |
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40 | BOOST_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> )); |
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41 | typedef BOOST_DEDUCED_TYPENAME range_iterator<const ForwardRange>::type iterator_t; |
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42 | |
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43 | iterator_t last_target = ::boost::end(rng); |
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44 | for (iterator_t target = ::boost::begin(rng); target != last_target; ++target, ++x) |
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45 | *target = x; |
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46 | |
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47 | return rng; |
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48 | } |
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49 | |
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50 | } // namespace range |
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51 | using range::iota; |
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52 | } // namespace boost |
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53 | |
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54 | #endif // include guard |
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