C / C++ / MFC

inline _bstr_t::Data_t::Data_t(const _bstr_t& s1, const _bstr_t& s2) throw(_com_error)
	: m_str(NULL), m_RefCount(1)
{
	const unsigned int l1 = s1.length();
	const unsigned int l2 = s2.length();

	m_wstr = ::SysAllocStringByteLen(NULL, (l1 + l2) * sizeof(wchar_t));

	if (m_wstr == NULL) {
		if (l1 + l2 == 0) {
			return;
		}
		_com_issue_error(E_OUTOFMEMORY);
	}

	const wchar_t* wstr1 = static_cast<const wchar_t*>(s1);

	if (wstr1 != NULL) {
		memcpy(m_wstr, wstr1, (l1 + 1) * sizeof(wchar_t));
	}

	const wchar_t* wstr2 = static_cast<const wchar_t*>(s2);

	if (wstr2 != NULL) {
		memcpy(m_wstr + l1, wstr2, (l2 + 1) * sizeof(wchar_t));
	}
}

#include "stdafx.h"
#include "MRFileProcessor.h"
#include "MRDBInsert.h"
#include "MRCSVInsert.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// The one and only application object

CWinApp theApp;

void usage();

void _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
	int nRetCode = 0;

	// initialize MFC and print and error on failure
	if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
	{
		// TODO: change error code to suit your needs
		cerr << _T("Fatal Error: MFC initialization failed") << endl;
		nRetCode = 1;
	}
	else if (argc < 2)
	{
		usage();
	}
	else
	{
             // main application code here
             // MRDBInsert is not instatiated.
             // Omitted for brevity
        }

}