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Editing: partition_copy.hpp
/* Copyright (c) Marshall Clow 2011-2012. Distributed under 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) */ /// \file partition_copy.hpp /// \brief Copy a subset of a sequence to a new sequence /// \author Marshall Clow #ifndef BOOST_ALGORITHM_PARTITION_COPY_HPP #define BOOST_ALGORITHM_PARTITION_COPY_HPP #include <utility> // for std::pair #include <boost/config.hpp> #include <boost/range/begin.hpp> #include <boost/range/end.hpp> namespace boost { namespace algorithm { /// \fn partition_copy ( InputIterator first, InputIterator last, /// OutputIterator1 out_true, OutputIterator2 out_false, UnaryPredicate p ) /// \brief Copies the elements that satisfy the predicate p from the range [first, last) /// to the range beginning at d_first_true, and /// copies the elements that do not satisfy p to the range beginning at d_first_false. /// /// /// \param first The start of the input sequence /// \param last One past the end of the input sequence /// \param out_true An output iterator to write the elements that satisfy the predicate into /// \param out_false An output iterator to write the elements that do not satisfy the predicate into /// \param p A predicate for dividing the elements of the input sequence. /// /// \note This function is part of the C++2011 standard library. template <typename InputIterator, typename OutputIterator1, typename OutputIterator2, typename UnaryPredicate> BOOST_CXX14_CONSTEXPR std::pair<OutputIterator1, OutputIterator2> partition_copy ( InputIterator first, InputIterator last, OutputIterator1 out_true, OutputIterator2 out_false, UnaryPredicate p ) { for ( ; first != last; ++first ) if ( p (*first)) *out_true++ = *first; else *out_false++ = *first; return std::pair<OutputIterator1, OutputIterator2> ( out_true, out_false ); } /// \fn partition_copy ( const Range &r, /// OutputIterator1 out_true, OutputIterator2 out_false, UnaryPredicate p ) /// /// \param r The input range /// \param out_true An output iterator to write the elements that satisfy the predicate into /// \param out_false An output iterator to write the elements that do not satisfy the predicate into /// \param p A predicate for dividing the elements of the input sequence. /// template <typename Range, typename OutputIterator1, typename OutputIterator2, typename UnaryPredicate> BOOST_CXX14_CONSTEXPR std::pair<OutputIterator1, OutputIterator2> partition_copy ( const Range &r, OutputIterator1 out_true, OutputIterator2 out_false, UnaryPredicate p ) { return boost::algorithm::partition_copy (boost::begin(r), boost::end(r), out_true, out_false, p ); } }} // namespace boost and algorithm #endif // BOOST_ALGORITHM_PARTITION_COPY_HPP
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