testshl2/workben/test_autoptr.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_testshl2.hxx"
  33
  34 #include <stdlib.h>
  35 #include <memory>
  36 #include <iostream>
  37
  38 #include <stdio.h>
  39
  40 #include <rtl/string.hxx>
  41 #include <rtl/ustring.hxx>
  42
  43 class AutoPtrTest
  44 {
  45     int m_nValue;
  46
  47     // NOCOPY
  48     AutoPtrTest(AutoPtrTest const& );
  49     AutoPtrTest& operator =(AutoPtrTest const& );
  50
  51 public:
  52     AutoPtrTest(int _nValue = 1)
  53             :m_nValue(_nValue)
  54         {
  55             std::cout << "build Value" << std::endl;
  56         }
  57     ~AutoPtrTest()
  58         {
  59             std::cout << "release Value" << std::endl;
  60             m_nValue = 0;
  61         }
  62 //    int operator int() const {return m_nValue;}
  63     int getValue() const {return m_nValue;}
  64 };
  65
  66 std::auto_ptr<AutoPtrTest> getPtr()
  67 {
  68     return std::auto_ptr<AutoPtrTest>(new AutoPtrTest(2));
  69 }
  70
  71 // auto_ptr get() gibt den Pointer ohne das ownership
  72 // auto_ptr release()gibt den Pointer und (!) das ownership
  73
  74 void test_autoptr()
  75 {
  76     AutoPtrTest *pValuePtr;
  77     std::cout << "start test" << std::endl;
  78     {
  79         std::auto_ptr<AutoPtrTest> pValue = getPtr();
  80         std::cout << "Value with getValue() " << pValue->getValue() << std::endl;
  81         // std::cout << "Value operator int()  " << *pValue << std::endl;
  82         // ownership weiterreichen
  83         pValuePtr = pValue.release();
  84     }
  85     std::cout << "ValuePtr with getValue() " << pValuePtr->getValue() << std::endl;
  86
  87     // ownership an neuen Pointer uebergeben
  88     std::auto_ptr<AutoPtrTest> pValue2(pValuePtr);
  89
  90     // AutoPtrTest *pStr = getPtr();
  91     std::cout << "end test" << std::endl;
  92 }
  93
  94 // ----------------------------------- Main -----------------------------------
  95 #if (defined UNX) || (defined OS2)
  96 int main( int /* argc */ , char* /* argv */ [] )
  97 #else
  98     int _cdecl main( int /* argc*/ , char* /*argv*/ [] )
  99 #endif
 100 {
 101     test_autoptr();
 102     return 0;
 103 }