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1 | // Boost.Range library |
2 | // | |
3 | // Copyright Thorsten Ottosen 2003-2004. 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 | ||
20effc67 | 13 | #if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564)) |
7c673cae FG |
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/test/unit_test.hpp> | |
19 | #include <boost/test/test_tools.hpp> | |
20 | ||
21 | enum adl_types | |
22 | { | |
23 | unused, | |
24 | boost_namespace, | |
25 | templated_namespace, | |
26 | non_templated_namespace, | |
27 | global_namespace | |
28 | }; | |
29 | ||
30 | // Use boost_test rather than boost as the namespace for this test | |
31 | // to allow the test framework to use boost::begin() etc. without | |
32 | // violating the One Defintion Rule. | |
33 | namespace boost_test | |
34 | { | |
35 | namespace range_detail | |
36 | { | |
37 | template< class Range > | |
38 | inline typename Range::iterator begin( Range& r ) | |
39 | { | |
40 | return boost_namespace; | |
41 | } | |
42 | ||
43 | template< class Range > | |
44 | inline typename Range::iterator begin( const Range& r ) | |
45 | { | |
46 | return boost_namespace; | |
47 | } | |
48 | ||
49 | } | |
50 | ||
51 | template< class Range > | |
52 | inline typename Range::iterator begin( Range& r ) | |
53 | { | |
54 | using range_detail::begin; // create ADL hook | |
55 | return begin( r ); | |
56 | } | |
57 | ||
58 | template< class Range > | |
59 | inline typename Range::iterator begin( const Range& r ) | |
60 | { | |
61 | using range_detail::begin; // create ADL hook | |
62 | return begin( r ); | |
63 | } | |
64 | } // 'boost_test' | |
65 | ||
66 | ||
67 | namespace find_templated | |
68 | { | |
69 | template< class T > | |
70 | struct range | |
71 | { | |
72 | typedef adl_types iterator; | |
73 | ||
74 | range() { /* allow const objects */ } | |
75 | iterator begin() { return unused; } | |
76 | iterator begin() const { return unused; } | |
77 | iterator end() { return unused; } | |
78 | iterator end() const { return unused; } | |
79 | }; | |
80 | ||
81 | // | |
82 | // A fully generic version here will create | |
83 | // ambiguity. | |
84 | // | |
85 | template< class T > | |
86 | inline typename range<T>::iterator begin( range<T>& r ) | |
87 | { | |
88 | return templated_namespace; | |
89 | } | |
90 | ||
91 | template< class T > | |
92 | inline typename range<T>::iterator begin( const range<T>& r ) | |
93 | { | |
94 | return templated_namespace; | |
95 | } | |
96 | ||
97 | } | |
98 | ||
99 | namespace find_non_templated | |
100 | { | |
101 | struct range | |
102 | { | |
103 | typedef adl_types iterator; | |
104 | ||
105 | range() { /* allow const objects */ } | |
106 | iterator begin() { return unused; } | |
107 | iterator begin() const { return unused; } | |
108 | iterator end() { return unused; } | |
109 | iterator end() const { return unused; } | |
110 | }; | |
111 | ||
112 | inline range::iterator begin( range& r ) | |
113 | { | |
114 | return non_templated_namespace; | |
115 | } | |
116 | ||
117 | ||
118 | inline range::iterator begin( const range& r ) | |
119 | { | |
120 | return non_templated_namespace; | |
121 | } | |
122 | } | |
123 | ||
124 | struct range | |
125 | { | |
126 | typedef adl_types iterator; | |
127 | ||
128 | range() { /* allow const objects */ } | |
129 | iterator begin() { return unused; } | |
130 | iterator begin() const { return unused; } | |
131 | iterator end() { return unused; } | |
132 | iterator end() const { return unused; } | |
133 | }; | |
134 | ||
135 | inline range::iterator begin( range& r ) | |
136 | { | |
137 | return global_namespace; | |
138 | } | |
139 | ||
140 | inline range::iterator begin( const range& r ) | |
141 | { | |
142 | return global_namespace; | |
143 | } | |
144 | ||
145 | void check_adl_conformance() | |
146 | { | |
147 | find_templated::range<int> r; | |
148 | const find_templated::range<int> r2; | |
149 | find_non_templated::range r3; | |
150 | const find_non_templated::range r4; | |
151 | range r5; | |
152 | const range r6; | |
153 | ||
154 | // | |
155 | // Notice how ADL kicks in even when we have qualified | |
156 | // notation! | |
157 | // | |
158 | ||
159 | ||
160 | BOOST_CHECK( boost_test::begin( r ) != boost_namespace ); | |
161 | BOOST_CHECK( boost_test::begin( r2 ) != boost_namespace ); | |
162 | BOOST_CHECK( boost_test::begin( r3 ) != boost_namespace ); | |
163 | BOOST_CHECK( boost_test::begin( r4 ) != boost_namespace ); | |
164 | BOOST_CHECK( boost_test::begin( r5 ) != boost_namespace ); | |
165 | BOOST_CHECK( boost_test::begin( r6 ) != boost_namespace ); | |
166 | ||
167 | BOOST_CHECK_EQUAL( boost_test::begin( r ), templated_namespace ) ; | |
168 | BOOST_CHECK_EQUAL( boost_test::begin( r2 ), templated_namespace ); | |
169 | BOOST_CHECK_EQUAL( boost_test::begin( r3 ), non_templated_namespace ); | |
170 | BOOST_CHECK_EQUAL( boost_test::begin( r4 ), non_templated_namespace ); | |
171 | BOOST_CHECK_EQUAL( boost_test::begin( r5 ), global_namespace ); | |
172 | BOOST_CHECK_EQUAL( boost_test::begin( r6 ), global_namespace ); | |
173 | } | |
174 | ||
175 | #include <boost/test/included/unit_test.hpp> | |
176 | ||
177 | using boost::unit_test::test_suite; | |
178 | ||
179 | test_suite* init_unit_test_suite( int argc, char* argv[] ) | |
180 | { | |
181 | test_suite* test = BOOST_TEST_SUITE( "Range Test Suite" ); | |
182 | ||
183 | test->add( BOOST_TEST_CASE( &check_adl_conformance ) ); | |
184 | ||
185 | return test; | |
186 | } | |
187 | ||
188 |