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 |
---|