1// Boost.Range library
2//
3// Copyright Neil Groves 2010. Use, modification and
4// distribution is subject to the Boost Software License, Version
5// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt)
7//
8// For more information, see http://www.boost.org/libs/range/
9//
10
11#include <boost/detail/workaround.hpp>
12
13#if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564))
14# pragma warn -8091 // suppress warning in Boost.Test
15# pragma warn -8057 // unused argument argc/argv in Boost.Test
16#endif
17
18#include <boost/range/begin.hpp>
19#include <boost/test/unit_test.hpp>
20#include <boost/test/test_tools.hpp>
21#include <boost/test/included/unit_test.hpp>
22
23namespace mock_std
24{
25 template<class SinglePassRange>
26 inline BOOST_DEDUCED_TYPENAME boost::range_iterator<SinglePassRange>::type
27 begin(SinglePassRange& rng)
28 {
29 return rng.begin();
30 }
31
32 template<class SinglePassRange>
33 inline BOOST_DEDUCED_TYPENAME boost::range_iterator<const SinglePassRange>::type
34 begin(const SinglePassRange& rng)
35 {
36 return rng.begin();
37 }
38
39 template<class SinglePassRange>
40 void mock_algorithm_using_begin(const SinglePassRange& rng)
41 {
42 BOOST_CHECK( begin(rng) == rng.begin() );
43 }
44
45 template<class SinglePassRange>
46 void mock_algorithm_using_begin(SinglePassRange& rng)
47 {
48 BOOST_CHECK( begin(rng) == rng.begin() );
49 }
50}
51
52namespace boost
53{
54#ifdef BOOST_RANGE_SIMULATE_BEGIN_WITHOUT_ADL_NAMESPACE_BARRIER
55 template<class SinglePassRange>
56 inline BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange>::type
57 begin(SinglePassRange& rng)
58 {
59 return rng.begin();
60 }
61
62 template<class SinglePassRange>
63 inline BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange>::type
64 begin(const SinglePassRange& rng)
65 {
66 return rng.begin();
67 }
68#endif
69
70 class MockTestBeginCollection
71 {
72 public:
73 typedef char value_type;
74 typedef const char* const_pointer;
75 typedef char* pointer;
76 typedef const_pointer const_iterator;
77 typedef pointer iterator;
78
79 MockTestBeginCollection()
80 : m_first()
81 , m_last()
82 {
83 }
84
85 const_iterator begin() const { return m_first; }
86 iterator begin() { return m_first; }
87 const_iterator end() const { return m_last; }
88 iterator end() { return m_last; }
89
90 private:
91 iterator m_first;
92 iterator m_last;
93 };
94}
95
96namespace
97{
98 void test_range_begin()
99 {
100 boost::MockTestBeginCollection c;
101 const boost::MockTestBeginCollection& const_c = c;
102 mock_std::mock_algorithm_using_begin(rng: const_c);
103 mock_std::mock_algorithm_using_begin(rng&: c);
104 }
105}
106
107using boost::unit_test::test_suite;
108
109boost::unit_test::test_suite*
110init_unit_test_suite( int argc, char* argv[] )
111{
112 boost::unit_test::test_suite* test = BOOST_TEST_SUITE( "Range Test Suite - begin() ADL namespace barrier" );
113
114 test->add( BOOST_TEST_CASE( &test_range_begin ) );
115
116 return test;
117}
118
119
120

source code of boost/libs/range/test/begin.cpp