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80 lines
2.5 KiB
80 lines
2.5 KiB
// 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_FIND_HPP_INCLUDED |
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#define BOOST_RANGE_ALGORITHM_FIND_HPP_INCLUDED |
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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 <boost/range/detail/range_return.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 find |
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/// |
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/// range-based version of the find std algorithm |
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/// |
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/// \pre SinglePassRange is a model of the SinglePassRangeConcept |
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template< class SinglePassRange, class Value > |
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inline BOOST_DEDUCED_TYPENAME disable_if< |
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is_const<SinglePassRange>, |
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BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange>::type |
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>::type |
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find( SinglePassRange& rng, const Value& val ) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> )); |
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return std::find(boost::begin(rng), boost::end(rng), val); |
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} |
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/// \overload |
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template< class SinglePassRange, class Value > |
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inline BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange>::type |
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find( const SinglePassRange& rng, const Value& val ) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> )); |
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return std::find(boost::begin(rng), boost::end(rng), val); |
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} |
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// range_return overloads |
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/// \overload |
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template< range_return_value re, class SinglePassRange, class Value > |
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inline BOOST_DEDUCED_TYPENAME disable_if< |
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is_const<SinglePassRange>, |
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BOOST_DEDUCED_TYPENAME range_return<SinglePassRange,re>::type |
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>::type |
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find( SinglePassRange& rng, const Value& val ) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> )); |
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return range_return<SinglePassRange,re>:: |
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pack(std::find(boost::begin(rng), boost::end(rng), val), |
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rng); |
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} |
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/// \overload |
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template< range_return_value re, class SinglePassRange, class Value > |
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inline BOOST_DEDUCED_TYPENAME range_return<const SinglePassRange,re>::type |
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find( const SinglePassRange& rng, const Value& val ) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> )); |
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return range_return<const SinglePassRange,re>:: |
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pack(std::find(boost::begin(rng), boost::end(rng), val), |
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rng); |
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} |
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} // namespace range |
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using range::find; |
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} |
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#endif // include guard
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