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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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mfc
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src
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dbvar.cpp
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C/C++ Source or Header
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1998-06-16
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1KB
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57 lines
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.
#include "stdafx.h"
#ifdef AFX_DB_SEG
#pragma code_seg(AFX_DB_SEG)
#endif
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define new DEBUG_NEW
//////////////////////////////////////////////////////////////////////////////
// Implementation of CDBVariant
CDBVariant::CDBVariant()
{
// Initialize type and value
m_dwType = DBVT_NULL;
}
void CDBVariant::Clear()
{
if (m_dwType == DBVT_STRING)
delete (CString*)m_pstring;
else if (m_dwType == DBVT_BINARY)
delete (CLongBinary*)m_pbinary;
else if (m_dwType == DBVT_DATE)
delete (TIMESTAMP_STRUCT*)m_pdate;
m_dwType = DBVT_NULL;
}
CDBVariant::~CDBVariant()
{
Clear();
}
//////////////////////////////////////////////////////////////////////////////
#ifdef AFX_INIT_SEG
#pragma code_seg(AFX_INIT_SEG)
#endif
/////////////////////////////////////////////////////////////////////////////