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00001 #include <functional>
00002 
00003 #if !defined(_STLP_NO_EXTENSIONS) && defined(_STLP_USE_BOOST_SUPPORT)
00004 
00005 #include <typeinfo>
00006 #include "cppunit/cppunit_proxy.h"
00007 
00008 #if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
00009 using namespace std;
00010 #endif
00011 
00012 class RefWrapperTest :
00013     public CPPUNIT_NS::TestCase
00014 {
00015     CPPUNIT_TEST_SUITE(RefWrapperTest);
00016     CPPUNIT_TEST(ref);
00017     CPPUNIT_TEST(cref);
00018     CPPUNIT_TEST_SUITE_END();
00019 
00020   protected:
00021     void ref();
00022     void cref();
00023 };
00024 
00025 CPPUNIT_TEST_SUITE_REGISTRATION(RefWrapperTest);
00026 
00027 void RefWrapperTest::ref()
00028 {
00029   typedef std::tr1::reference_wrapper<int> rr_type;
00030 
00031   CPPUNIT_CHECK( (::boost::is_convertible<rr_type, int&>::value) );
00032   CPPUNIT_CHECK( (::boost::is_same<rr_type::type, int>::value) );
00033 
00034   int i = 1;
00035   int j = 2;
00036 
00037   rr_type r1 = std::tr1::ref(i);
00038 
00039   CPPUNIT_CHECK( r1.get() == 1 );
00040 
00041   r1 = std::tr1::ref(j);
00042 
00043   CPPUNIT_CHECK( r1.get() == 2 );
00044 
00045   i = 3;
00046 
00047   CPPUNIT_CHECK( r1.get() == 2 );
00048 
00049   j = 4;
00050 
00051   CPPUNIT_CHECK( r1.get() == 4 );
00052 
00053   r1.get() = 5;
00054 
00055   CPPUNIT_CHECK( j == 5 );
00056 }
00057 
00058 void RefWrapperTest::cref()
00059 {
00060   typedef std::tr1::reference_wrapper<const int> crr_type;
00061 
00062   CPPUNIT_CHECK( (::boost::is_convertible<crr_type, const int&>::value) );
00063   CPPUNIT_CHECK( (::boost::is_same<crr_type::type, const int>::value) );
00064 
00065   int i = 1;
00066   int j = 2;
00067 
00068   crr_type r1 = std::tr1::cref(i);
00069 
00070   CPPUNIT_CHECK( r1.get() == 1 );
00071 
00072   r1 = std::tr1::cref(j);
00073 
00074   CPPUNIT_CHECK( r1.get() == 2 );
00075 
00076   i = 3;
00077 
00078   CPPUNIT_CHECK( r1.get() == 2 );
00079 
00080   j = 4;
00081 
00082   CPPUNIT_CHECK( r1.get() == 4 );
00083 }
00084 
00085 #endif /* !_STLP_NO_EXTENSIONS && _STLP_USE_BOOST_SUPPORT */
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