File: iterator_range.cpp

package info (click to toggle)
boost1.35 1.35.0-5
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 203,856 kB
  • ctags: 337,867
  • sloc: cpp: 938,683; xml: 56,847; ansic: 41,589; python: 18,999; sh: 11,566; makefile: 664; perl: 494; yacc: 456; asm: 353; csh: 6
file content (150 lines) | stat: -rw-r--r-- 4,248 bytes parent folder | download | duplicates (2)
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
// Boost.Range library
//
//  Copyright Thorsten Ottosen & Larry Evans 2003-2005. 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/range/as_array.hpp>

#include <boost/detail/workaround.hpp>

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

#include <boost/range/iterator_range.hpp>
#include <boost/range/functions.hpp>
#include <boost/range/as_literal.hpp> 
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include <iostream>
#include <string>

using namespace boost;
using namespace std;

void check_reference_type();

void check_iterator_range()
{
   
    typedef string::iterator               iterator;
    typedef string::const_iterator         const_iterator;
    typedef iterator_range<iterator>       irange;
    typedef iterator_range<const_iterator> cirange;
    string       str  = "hello world";
    const string cstr = "const world";
    irange r    = make_iterator_range( str );
    r           = make_iterator_range( str.begin(), str.end() );
    cirange r2  = make_iterator_range( cstr );
    r2          = make_iterator_range( cstr.begin(), cstr.end() );
    r2          = make_iterator_range( str );
 
    BOOST_CHECK( !r.empty() );
    BOOST_CHECK( !r2.empty() );

//#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
//    if( !(bool)r )
//        BOOST_CHECK( false );
//    if( !(bool)r2 )
//        BOOST_CHECK( false );
//#else    
    if( !r )
        BOOST_CHECK( false );
    if( !r2 )
        BOOST_CHECK( false );
//#endif

    BOOST_CHECK_EQUAL( r.size(), size( r ) );
    BOOST_CHECK_EQUAL( r2.size(), size( r2 ) );
    
    BOOST_CHECK_EQUAL( distance( r.begin(), r.end() ), 
                       distance( begin( r2 ), end( r2 ) ) );
    cout << r << r2;

        
#ifndef BOOST_NO_STD_WSTRING
    wcout << make_iterator_range( wstring( L"a wide string" ) ) 
          << make_iterator_range( L"another wide string" );
#endif    
    
    string res  = copy_range<string>( r );
    BOOST_CHECK( equal( res.begin(), res.end(), r.begin() ) );

    irange rr = make_iterator_range( str );
    BOOST_CHECK( rr.equal( r ) );

    rr  = make_iterator_range( str.begin(), str.begin() + 5 );
    BOOST_CHECK( rr == as_literal("hello") );
    BOOST_CHECK( rr != as_literal("hell") );
    BOOST_CHECK( rr < as_literal("hello dude") );
    BOOST_CHECK( as_literal("hello") == rr );
    BOOST_CHECK( as_literal("hell")  != rr );
    BOOST_CHECK( ! (as_literal("hello dude") < rr ) );
    irange rrr = rr;
    BOOST_CHECK( rrr == rr );
    BOOST_CHECK( !( rrr != rr ) );
    BOOST_CHECK( !( rrr < rr ) );

    const irange cr = make_iterator_range( str );
    BOOST_CHECK_EQUAL( cr.front(), 'h' );
    BOOST_CHECK_EQUAL( cr.back(), 'd' );
    BOOST_CHECK_EQUAL( cr[1], 'e' );
    BOOST_CHECK_EQUAL( cr(1), 'e' );

    rrr = make_iterator_range( str, 1, -1 );
    BOOST_CHECK( rrr == as_literal("ello worl") );
    rrr = make_iterator_range( rrr, -1, 1 );
    BOOST_CHECK( rrr == str );

    check_reference_type();
}


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_iterator_range ) );

    return test;
}


//
//
// Check that constness is propgated correct from
// the iterator types.
// 
// Test contributed by Larry Evans.
// 

template< class Container >
int test_iter_range( Container& a_cont )
{
    typedef BOOST_DEDUCED_TYPENAME range_iterator<Container>::type citer_type;
    typedef iterator_range<citer_type> riter_type;
    riter_type a_riter( make_iterator_range( a_cont ) );
    a_riter.front();
    a_riter.back();
    int i = a_riter[0];
    return i;
}



void check_reference_type()
{
    typedef vector<int> veci_type;
    veci_type a_vec;
    a_vec.push_back( 999 );
    test_iter_range<veci_type>(a_vec);
    test_iter_range<veci_type const>(a_vec);
}