鍵盤的詠嘆調

// 未釋放內存空間.cpp : Defines the entry point for the console application.

#include "stdafx.h"

#include <windows.h>

#include <string>

#include <iostream>

using namespace std;

class CTestClass

{

public:

    CTestClass(LPWSTR szName)

    {

        m_lpName = new wstring(szName);

    }

    ~CTestClass()

    {

    }

    void PrintName()

    {

        wcout << *m_lpName << endl;

    }

private:

    wstring *m_lpName;

};

HRESULT CreateTestClass(LPWSTR szName, CTestClass **ppObject)

{

    *ppObject = new CTestClass(szName);

    if ( (*ppObject) == NULL )

        return E_FAIL;

    else

        return S_OK;

}

int _tmain(int argc, _TCHAR* argv[])

{

    CTestClass *pObject = NULL;

    HRESULT hr = CreateTestClass(L"This is a Test", &pObject);

    if ( hr != S_OK )

    {

        return -1;

    }

    else

    {

        pObject->PrintName();  // pObject沒有被釋放

        return 0;

    }

}

typedef struct _CrtMemBlockHeader

{

    // Pointer to the block allocated just before this one:

    struct _CrtMemBlockHeader *pBlockHeaderNext;

    // Pointer to the block allocated just after this one:

    struct _CrtMemBlockHeader *pBlockHeaderPrev;

    char *szFileName;    // File name

    int nLine;           // Line number

    size_t nDataSize;    // Size of user block

    int nBlockUse;       // Type of block

    long lRequest;       // Allocation number

    // Buffer just before (lower than) the user's memory:

    unsigned char gap[nNoMansLandSize];

} _CrtMemBlockHeader;

// 未釋放內存空間.cpp : Defines the entry point for the console application.

//

#include "stdafx.h"

#include <windows.h>

#include <string>

#include <iostream>

// 使用CRT調試API

#include <crtdbg.h>

using namespace std;

// 將所有的內存分配函數new替換成CRT提供的調試new

#ifdef _DEBUG

#   define DEBUG_CLIENTBLOCK new(_CLIENT_BLOCK, __FILE__, __LINE__)

#else

#   define DEBUG_CLIENTBLOCK

#endif

#ifdef _DEBUG

#    define new DEBUG_CLIENTBLOCK

#endif

class CTestClass

{

public:

    CTestClass(LPWSTR szName)

    {

        m_lpName = new wstring(szName);

    }

    ~CTestClass()

    {

    }

    void PrintName()

    {

        wcout << *m_lpName << endl;

    }

private:

    wstring *m_lpName;

};

HRESULT CreateTestClass(LPWSTR szName, CTestClass **ppObject)

{

    *ppObject = new CTestClass(szName);

    if ( (*ppObject) == NULL )

        return E_FAIL;

    else

        return S_OK;

}

int _tmain(int argc, _TCHAR* argv[])

{  

// 設置CRT調試API的報表輸出模式，將所有的錯誤、警告還有斷言都輸出到控制臺

    _CrtSetReportMode( _CRT_WARN, _CRTDBG_MODE_FILE );

    _CrtSetReportFile( _CRT_WARN, _CRTDBG_FILE_STDOUT );

    _CrtSetReportMode( _CRT_ERROR, _CRTDBG_MODE_FILE );

    _CrtSetReportFile( _CRT_ERROR, _CRTDBG_FILE_STDOUT );

    _CrtSetReportMode( _CRT_ASSERT, _CRTDBG_MODE_FILE );

    _CrtSetReportFile( _CRT_ASSERT, _CRTDBG_FILE_STDOUT );

    CTestClass *pObject = NULL;

    HRESULT hr = CreateTestClass(L"This is a Test", &pObject);

    if ( hr != S_OK )

    {

        return -1;

    }

    else

    {

        pObject->PrintName();

// 檢查未釋放的內存

        _CrtDumpMemoryLeaks();

        return 0;

    }

}