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- // Copyright Neil Groves 2009. Use, modification and
- // distribution is subject to the Boost Software License, Version
- // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- //
- //
- // For more information, see http://www.boost.org/libs/range/
- //
- #ifndef BOOST_RANGE_ALGORITHM_FIND_HPP_INCLUDED
- #define BOOST_RANGE_ALGORITHM_FIND_HPP_INCLUDED
- #include <boost/concept_check.hpp>
- #include <boost/range/begin.hpp>
- #include <boost/range/end.hpp>
- #include <boost/range/concepts.hpp>
- #include <boost/range/detail/range_return.hpp>
- #include <algorithm>
- namespace boost
- {
- namespace range
- {
- /// \brief template function find
- ///
- /// range-based version of the find std algorithm
- ///
- /// \pre SinglePassRange is a model of the SinglePassRangeConcept
- template< class SinglePassRange, class Value >
- inline BOOST_DEDUCED_TYPENAME disable_if<
- is_const<SinglePassRange>,
- BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange>::type
- >::type
- find( SinglePassRange& rng, const Value& val )
- {
- BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> ));
- return std::find(boost::begin(rng), boost::end(rng), val);
- }
- /// \overload
- template< class SinglePassRange, class Value >
- inline BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange>::type
- find( const SinglePassRange& rng, const Value& val )
- {
- BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> ));
- return std::find(boost::begin(rng), boost::end(rng), val);
- }
- // range_return overloads
- /// \overload
- template< range_return_value re, class SinglePassRange, class Value >
- inline BOOST_DEDUCED_TYPENAME disable_if<
- is_const<SinglePassRange>,
- BOOST_DEDUCED_TYPENAME range_return<SinglePassRange,re>::type
- >::type
- find( SinglePassRange& rng, const Value& val )
- {
- BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange> ));
- return range_return<SinglePassRange,re>::
- pack(std::find(boost::begin(rng), boost::end(rng), val),
- rng);
- }
- /// \overload
- template< range_return_value re, class SinglePassRange, class Value >
- inline BOOST_DEDUCED_TYPENAME range_return<const SinglePassRange,re>::type
- find( const SinglePassRange& rng, const Value& val )
- {
- BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange> ));
- return range_return<const SinglePassRange,re>::
- pack(std::find(boost::begin(rng), boost::end(rng), val),
- rng);
- }
- } // namespace range
- using range::find;
- }
- #endif // include guard
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