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
23 template< class T >
24 struct caster_to
25 {
26 typedef T result_type;
27
operator ()caster_to28 T operator()( void* obj ) const
29 {
30 return static_cast<T>( obj );
31 }
32 };
33
34 template< class PtrSequence >
test_ptr_inserter_helper()35 void 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
test_ptr_inserter()71 void 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>
82 using boost::unit_test::test_suite;
83
init_unit_test_suite(int argc,char * argv[])84 test_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