ceph/src/boost/libs/range/include/boost/range/algorithm/find_first_of.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_FIND_FIRST_OF_HPP_INCLUDED
  10 #define BOOST_RANGE_ALGORITHM_FIND_FIRST_OF_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 find_first_of
  25 ///
  26 /// range-based version of the find_first_of std algorithm
  27 ///
  28 /// \pre SinglePassRange1 is a model of the SinglePassRangeConcept
  29 /// \pre ForwardRange2 is a model of the ForwardRangeConcept
  30 /// \pre BinaryPredicate is a model of the BinaryPredicateConcept
  31 template< class SinglePassRange1, class ForwardRange2 >
  32 inline BOOST_DEDUCED_TYPENAME disable_if<
  33     is_const<SinglePassRange1>,
  34     BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type
  35 >::type
  36 find_first_of(SinglePassRange1 & rng1, ForwardRange2 const & rng2)
  37 {
  38     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> ));
  39     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange2> ));
  40
  41     return std::find_first_of(boost::begin(rng1),boost::end(rng1),
  42                               boost::begin(rng2),boost::end(rng2));
  43 }
  44
  45 /// \overload
  46 template< class SinglePassRange1, class ForwardRange2 >
  47 inline BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange1>::type
  48 find_first_of(const SinglePassRange1& rng1, const ForwardRange2& rng2)
  49 {
  50     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
  51     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange2> ));
  52
  53     return std::find_first_of(boost::begin(rng1),boost::end(rng1),
  54                               boost::begin(rng2),boost::end(rng2));
  55 }
  56
  57 /// \overload
  58 template< class SinglePassRange1, class ForwardRange2, class BinaryPredicate >
  59 inline BOOST_DEDUCED_TYPENAME disable_if<
  60     is_const<SinglePassRange1>,
  61     BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type
  62 >::type
  63 find_first_of(SinglePassRange1 & rng1, ForwardRange2 const & rng2, BinaryPredicate pred)
  64 {
  65     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> ));
  66     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange2> ));
  67
  68     return std::find_first_of(boost::begin(rng1),boost::end(rng1),
  69                               boost::begin(rng2),boost::end(rng2),pred);
  70 }
  71
  72 /// \overload
  73 template< class SinglePassRange1, class ForwardRange2, class BinaryPredicate >
  74 inline BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange1>::type
  75 find_first_of(const SinglePassRange1& rng1, const ForwardRange2& rng2, BinaryPredicate pred)
  76 {
  77     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
  78     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange2> ));
  79
  80     return std::find_first_of(boost::begin(rng1),boost::end(rng1),
  81                               boost::begin(rng2),boost::end(rng2),pred);
  82 }
  83
  84 // range return overloads
  85 /// \overload
  86 template< range_return_value re, class SinglePassRange1, class ForwardRange2 >
  87 inline BOOST_DEDUCED_TYPENAME disable_if<
  88     is_const<SinglePassRange1>,
  89     BOOST_DEDUCED_TYPENAME range_return<SinglePassRange1,re>::type
  90 >::type
  91 find_first_of(SinglePassRange1& rng1, const ForwardRange2& rng2)
  92 {
  93     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> ));
  94     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange2> ));
  95
  96     return range_return<SinglePassRange1,re>::
  97         pack(std::find_first_of(boost::begin(rng1), boost::end(rng1),
  98                                 boost::begin(rng2), boost::end(rng2)),
  99              rng1);
 100 }
 101
 102 /// \overload
 103 template< range_return_value re, class SinglePassRange1, class ForwardRange2 >
 104 inline BOOST_DEDUCED_TYPENAME range_return<const SinglePassRange1,re>::type
 105 find_first_of(const SinglePassRange1& rng1, const ForwardRange2& rng2)
 106 {
 107     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
 108     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange2> ));
 109
 110     return range_return<const SinglePassRange1,re>::
 111         pack(std::find_first_of(boost::begin(rng1), boost::end(rng1),
 112                                 boost::begin(rng2), boost::end(rng2)),
 113              rng1);
 114 }
 115
 116 /// \overload
 117 template< range_return_value re, class SinglePassRange1, class ForwardRange2,
 118           class BinaryPredicate >
 119 inline BOOST_DEDUCED_TYPENAME disable_if<
 120     is_const<SinglePassRange1>,
 121     BOOST_DEDUCED_TYPENAME range_return<SinglePassRange1,re>::type
 122 >::type
 123 find_first_of(SinglePassRange1 & rng1, const ForwardRange2& rng2,
 124               BinaryPredicate pred)
 125 {
 126     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> ));
 127     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange2> ));
 128
 129     return range_return<SinglePassRange1,re>::
 130         pack(std::find_first_of(boost::begin(rng1), boost::end(rng1),
 131                                 boost::begin(rng2), boost::end(rng2), pred),
 132              rng1);
 133 }
 134
 135 /// \overload
 136 template< range_return_value re, class SinglePassRange1, class ForwardRange2,
 137           class BinaryPredicate >
 138 inline BOOST_DEDUCED_TYPENAME range_return<const SinglePassRange1,re>::type
 139 find_first_of(const SinglePassRange1 & rng1, const ForwardRange2& rng2,
 140               BinaryPredicate pred)
 141 {
 142     BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
 143     BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange2> ));
 144
 145     return range_return<const SinglePassRange1,re>::
 146         pack(std::find_first_of(boost::begin(rng1), boost::end(rng1),
 147                                 boost::begin(rng2), boost::end(rng2), pred),
 148              rng1);
 149 }
 150
 151     } // namespace range
 152     using range::find_first_of;
 153 } // namespace boost
 154
 155 #endif // include guard