1//
2// Boost.Pointer Container
3//
4// Copyright Thorsten Ottosen 2008. Use, modification and
5// distribution is subject to the Boost Software License, Version
6// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
7// http://www.boost.org/LICENSE_1_0.txt)
8//
9// For more information, see http://www.boost.org/libs/ptr_container/
10//
11
12#include <boost/ptr_container/ptr_inserter.hpp>
13#include <boost/ptr_container/indirect_fun.hpp>
14#include <boost/ptr_container/ptr_deque.hpp>
15#include <boost/ptr_container/ptr_list.hpp>
16#include <boost/assign/list_inserter.hpp>
17#include <boost/iterator/transform_iterator.hpp>
18#include <boost/test/test_tools.hpp>
19#include <algorithm>
20#include <functional>
21#include <string>
22
23template< class T >
24struct caster_to
25{
26 typedef T result_type;
27
28 T operator()( void* obj ) const
29 {
30 return static_cast<T>( obj );
31 }
32};
33
34template< class PtrSequence >
35void test_ptr_inserter_helper()
36{
37 using namespace boost;
38 PtrSequence seq;
39 const int size = 1000;
40 for( int i = 0; i != size; ++i )
41 seq.push_back( i % 3 == 0 ? 0 : new int(i) );
42
43 PtrSequence seq2;
44 //
45 // @remark: we call .base() to avoid null pointer indirection.
46 // The clone_inserter will handle the nulls correctly.
47 //
48 std::copy( boost::make_transform_iterator( seq.begin().base(), caster_to<int*>() ),
49 boost::make_transform_iterator( seq.end().base(), caster_to<int*>() ),
50 ptr_container::ptr_back_inserter( seq2 ) );
51
52 std::copy( boost::make_transform_iterator( seq.begin().base(), caster_to<int*>() ),
53 boost::make_transform_iterator( seq.end().base(), caster_to<int*>() ),
54 ptr_container::ptr_front_inserter( seq2 ) );
55 BOOST_CHECK_EQUAL( seq.size()*2, seq2.size() );
56
57 PtrSequence seq3;
58 for( int i = 0; i != size; ++i )
59 seq3.push_back( new int(i%3) );
60
61 //
62 // @remark: since there are no nulls in this container, it
63 // is easier to handle.
64 //
65 std::copy( seq3.begin(), seq3.end(),
66 ptr_container::ptr_inserter( seq, seq.end() ) );
67 BOOST_CHECK_EQUAL( seq.size(), seq2.size() );
68}
69
70
71void test_ptr_inserter()
72{
73 test_ptr_inserter_helper< boost::ptr_list< boost::nullable<int> > >();
74 test_ptr_inserter_helper< boost::ptr_deque< boost::nullable<int> > >();
75
76
77}
78
79
80
81#include <boost/test/unit_test.hpp>
82using boost::unit_test::test_suite;
83
84test_suite* init_unit_test_suite( int argc, char* argv[] )
85{
86 test_suite* test = BOOST_TEST_SUITE( "Pointer Container Test Suite" );
87
88 test->add( BOOST_TEST_CASE( &test_ptr_inserter ) );
89
90 return test;
91}
92
93
94

source code of boost/libs/ptr_container/test/ptr_inserter.cpp