ceph/src/boost/libs/range/include/boost/range/algorithm/remove_if.hpp

   1 //  Copyright Neil Groves 2009. Use, modification and
   2 //  distribution is subject to the Boost Software License, Version
   3 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   4 //  http://www.boost.org/LICENSE_1_0.txt)
   5 //
   6 //
   7 // For more information, see http://www.boost.org/libs/range/
   8 //
   9 #ifndef BOOST_RANGE_ALGORITHM_REMOVE_IF_HPP_INCLUDED
  10 #define BOOST_RANGE_ALGORITHM_REMOVE_IF_HPP_INCLUDED
  11
  12 #include <boost/concept_check.hpp>
  13 #include <boost/range/begin.hpp>
  14 #include <boost/range/end.hpp>
  15 #include <boost/range/concepts.hpp>
  16 #include <boost/range/detail/range_return.hpp>
  17 #include <algorithm>
  18
  19 namespace boost
  20 {
  21     namespace range
  22     {
  23
  24 /// \brief template function remove_if
  25 ///
  26 /// range-based version of the remove_if std algorithm
  27 ///
  28 /// \pre ForwardRange is a model of the ForwardRangeConcept
  29 /// \pre UnaryPredicate is a model of the UnaryPredicateConcept
  30 template< class ForwardRange, class UnaryPredicate >
  31 inline BOOST_DEDUCED_TYPENAME boost::range_iterator<ForwardRange>::type
  32 remove_if(ForwardRange& rng, UnaryPredicate pred)
  33 {
  34     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
  35     return std::remove_if(boost::begin(rng), boost::end(rng), pred);
  36 }
  37
  38 /// \overload
  39 template< class ForwardRange, class UnaryPredicate >
  40 inline BOOST_DEDUCED_TYPENAME boost::range_iterator<const ForwardRange>::type
  41 remove_if(const ForwardRange& rng, UnaryPredicate pred)
  42 {
  43     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
  44     return std::remove_if(boost::begin(rng), boost::end(rng), pred);
  45 }
  46
  47 // range_return overloads
  48
  49 /// \overload
  50 template< range_return_value re, class ForwardRange, class UnaryPredicate >
  51 inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type
  52 remove_if(ForwardRange& rng, UnaryPredicate pred)
  53 {
  54     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
  55     return range_return<ForwardRange,re>::pack(
  56         std::remove_if(boost::begin(rng), boost::end(rng), pred),
  57         rng);
  58 }
  59
  60 /// \overload
  61 template< range_return_value re, class ForwardRange, class UnaryPredicate >
  62 inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type
  63 remove_if(const ForwardRange& rng, UnaryPredicate pred)
  64 {
  65     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
  66     return range_return<const ForwardRange,re>::pack(
  67         std::remove_if(boost::begin(rng), boost::end(rng), pred),
  68         rng);
  69 }
  70
  71     } // namespace range
  72     using range::remove_if;
  73 } // namespace boost
  74
  75 #endif // include guard