reference_wrapper_test.cpp revision e46c9386c4f79aa40185f79a19fc5b2a7ef528b3 
1#include <functional>
2
3#if !defined(_STLP_NO_EXTENSIONS) && defined(_STLP_USE_BOOST_SUPPORT)
4
5#include <typeinfo>
6#include "cppunit/cppunit_proxy.h"
7
8#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
9using namespace std;
10#endif
11
12class RefWrapperTest :
13    public CPPUNIT_NS::TestCase
14{
15    CPPUNIT_TEST_SUITE(RefWrapperTest);
16    CPPUNIT_TEST(ref);
17    CPPUNIT_TEST(cref);
18    CPPUNIT_TEST_SUITE_END();
19
20  protected:
21    void ref();
22    void cref();
23};
24
25CPPUNIT_TEST_SUITE_REGISTRATION(RefWrapperTest);
26
27void RefWrapperTest::ref()
28{
29  typedef std::tr1::reference_wrapper<int> rr_type;
30
31  CPPUNIT_CHECK( (::boost::is_convertible<rr_type, int&>::value) );
32  CPPUNIT_CHECK( (::boost::is_same<rr_type::type, int>::value) );
33
34  int i = 1;
35  int j = 2;
36
37  rr_type r1 = std::tr1::ref(i);
38
39  CPPUNIT_CHECK( r1.get() == 1 );
40
41  r1 = std::tr1::ref(j);
42
43  CPPUNIT_CHECK( r1.get() == 2 );
44
45  i = 3;
46
47  CPPUNIT_CHECK( r1.get() == 2 );
48
49  j = 4;
50
51  CPPUNIT_CHECK( r1.get() == 4 );
52
53  r1.get() = 5;
54
55  CPPUNIT_CHECK( j == 5 );
56}
57
58void RefWrapperTest::cref()
59{
60  typedef std::tr1::reference_wrapper<const int> crr_type;
61
62  CPPUNIT_CHECK( (::boost::is_convertible<crr_type, const int&>::value) );
63  CPPUNIT_CHECK( (::boost::is_same<crr_type::type, const int>::value) );
64
65  int i = 1;
66  int j = 2;
67
68  crr_type r1 = std::tr1::cref(i);
69
70  CPPUNIT_CHECK( r1.get() == 1 );
71
72  r1 = std::tr1::cref(j);
73
74  CPPUNIT_CHECK( r1.get() == 2 );
75
76  i = 3;
77
78  CPPUNIT_CHECK( r1.get() == 2 );
79
80  j = 4;
81
82  CPPUNIT_CHECK( r1.get() == 4 );
83}
84
85#endif /* !_STLP_NO_EXTENSIONS && _STLP_USE_BOOST_SUPPORT */
86