File: extension_size.cpp

package info (click to toggle)
boost1.88 1.88.0-1
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 576,932 kB
  • sloc: cpp: 4,149,234; xml: 136,789; ansic: 35,092; python: 33,910; asm: 5,698; sh: 4,604; ada: 1,681; makefile: 1,633; pascal: 1,139; perl: 1,124; sql: 640; yacc: 478; ruby: 271; java: 77; lisp: 24; csh: 6
file content (224 lines) | stat: -rw-r--r-- 6,123 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
// Boost.Range library
//
//  Copyright Thorsten Ottosen 2003-2004. Use, modification and
//  distribution is subject to the Boost Software License, Version
//  1.0. (See accompanying file LICENSE_1_0.txt or copy at
//  http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see http://www.boost.org/libs/range/
//


#include <boost/detail/workaround.hpp>

#if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564))
#  pragma warn -8091 // suppress warning in Boost.Test
#  pragma warn -8057 // unused argument argc/argv in Boost.Test
#endif

#include <boost/range.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/static_assert.hpp>
#include <boost/cstdint.hpp>
#include <list>
#include <vector>

namespace boost_range_extension_size_test
{
    class FooWithoutSize
    {
        typedef std::list<int> impl_t;
        
        BOOST_STATIC_ASSERT((
            boost::is_same<
                boost::range_size<std::list<int> >::type,
                std::list<int>::size_type
            >::value));
        
        typedef impl_t::const_iterator const_iterator;
        typedef impl_t::iterator iterator;

    public:
        friend inline const_iterator range_begin(const FooWithoutSize& obj) { return obj.m_impl.begin(); }
        friend inline iterator range_begin(FooWithoutSize& obj) { return obj.m_impl.begin(); }
        friend inline const_iterator range_end(const FooWithoutSize& obj) { return obj.m_impl.end(); }
        friend inline iterator range_end(FooWithoutSize& obj){ return obj.m_impl.end(); }

    private:
        impl_t m_impl;
    };
    
    template<typename SizeType>
    class FooWithSize
    {
    public:
        typedef SizeType size_type;
        typedef boost::uint8_t* iterator;
        typedef const boost::uint8_t* const_iterator;
        
        const_iterator begin() const;
        iterator begin();
        const_iterator end() const;
        iterator end();
    };
    
    BOOST_STATIC_ASSERT((
        boost::is_same<
            boost::uint8_t,
            boost::range_size<FooWithSize<boost::uint8_t> >::type
        >::value
    ));
    
    BOOST_STATIC_ASSERT((
        boost::is_same<
            boost::uint16_t,
            boost::range_size<FooWithSize<boost::uint16_t> >::type
        >::value
    ));
    
    BOOST_STATIC_ASSERT((
        boost::is_same<
            boost::uint32_t,
            boost::range_size<FooWithSize<boost::uint32_t> >::type
        >::value
    ));
    
    BOOST_STATIC_ASSERT((
        boost::is_same<
            boost::uint64_t,
            boost::range_size<FooWithSize<boost::uint64_t> >::type
        >::value
    ));
    
    class UdtSizeType
    {
    public:
        typedef boost::uint16_t value_type;
        
        UdtSizeType() : value_(0) { }
        UdtSizeType(value_type value) : value_(value) { }
        
        operator value_type() const { return value_; }
        
    private:
        value_type value_;
    };
    
    BOOST_STATIC_ASSERT((
        boost::is_same<
            UdtSizeType,
            boost::range_size<FooWithSize<UdtSizeType> >::type
        >::value
    ));
    
    class Foo2WithoutSize
    {
    public:
        struct const_iterator
        {
            typedef std::forward_iterator_tag iterator_category;
            typedef boost::int8_t difference_type;
            typedef boost::int16_t value_type;
            typedef value_type* pointer;
            typedef value_type& reference;
            
            reference operator*() const;
            pointer operator->() const;
            const_iterator& operator++();
            const_iterator operator++(int);
            bool operator==(const const_iterator&) const;
            bool operator!=(const const_iterator&) const;
        };
        
        struct iterator : const_iterator
        {
            typedef const value_type* pointer;
            typedef const value_type& reference;
            
            reference operator*() const;
            pointer operator->() const;
            
            iterator& operator++();
            iterator operator++(int);
            
            bool operator==(const iterator&) const;
            bool operator!=(const iterator&) const;
        };
        
        const_iterator begin() const;
        iterator begin();
        const_iterator end() const;
        iterator end();
    };
    
    BOOST_STATIC_ASSERT((
        boost::is_same<
            boost::uint8_t,
            boost::range_size<
                ::boost_range_extension_size_test::Foo2WithoutSize>::type
        >::value
    ));
}

namespace boost
{
    template<> struct range_iterator<const ::boost_range_extension_size_test::FooWithoutSize>
    {
        typedef std::list<int>::const_iterator type;
    };

    template<> struct range_iterator< ::boost_range_extension_size_test::FooWithoutSize>
    {
        typedef std::list<int>::iterator type;
    };
}

namespace boost_range_extension_size_test
{
    inline boost::range_size<FooWithoutSize>::type
    range_calculate_size(const FooWithoutSize& rng)
    {
        return 2u;
    }
}

BOOST_STATIC_ASSERT((
    boost::is_same<
        boost::make_unsigned<std::ptrdiff_t>::type,
        boost::range_size<
                    boost_range_extension_size_test::FooWithoutSize>::type
    >::value
));

typedef boost::make_unsigned<std::ptrdiff_t>::type t1;
typedef boost::range_size<boost_range_extension_size_test::FooWithoutSize>::type t1;

namespace
{

void check_size_works_with_random_access()
{
    std::vector<int> container;
    container.push_back(1);
    BOOST_CHECK_EQUAL( boost::size(container), 1u );
}

void check_extension_size()
{
    BOOST_CHECK_EQUAL( boost::size(boost_range_extension_size_test::FooWithoutSize()), 2u );
}

} // anonymous namespace

using boost::unit_test::test_suite;

test_suite* init_unit_test_suite( int argc, char* argv[] )
{
    test_suite* test = BOOST_TEST_SUITE( "Range Test Suite" );

    test->add( BOOST_TEST_CASE( &check_size_works_with_random_access ));
    test->add( BOOST_TEST_CASE( &check_extension_size ) );

    return test;
}