C / C++ / MFC

foo( bar );

void foo( int & x ) { ++x; }

foo( &bar );

void foo( int const & x ) { ... } // Neither of these ...
void foo( int const * x ) { ... } // ... functions change x (or *x)
...
foo( bar );    // This call does not appear to change bar
foo( &bar );   // This call appears that it could change bar
               // but it doesn't

void ShutDownMe()
{
	OS_VERSION_INFO osvi;
	BOOL bNeedPrivileges;
	ZeroMemory(&osvi,sizeof(OS_VERSION_INFO));
	
	GetOSVersion(&osvi);
	if (IsWindows95(&osvi) || IsWindows95OSR2(&osvi) || IsWindows95SP1(&osvi) ||
		IsWindows98(&osvi) || IsWindows98SE(&osvi) || IsWindows98SP1(&osvi))
		bNeedPrivileges=FALSE;
	else
		bNeedPrivileges=TRUE;

	if (bNeedPrivileges)
	{
		HANDLE hToken; 
		TOKEN_PRIVILEGES tkp; 
		
		// Get a token for this process. 
		if (!OpenProcessToken(GetCurrentProcess(), 
			TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
		{
			//Error
			return;
		}
		
		// Get the LUID for the shutdown privilege. 
		LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, 
			&tkp.Privileges[0].Luid); 
		
		tkp.PrivilegeCount = 1;  // one privilege to set    
		tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 
		
		// Get the shutdown privilege for this process. 
		AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, 
			(PTOKEN_PRIVILEGES)NULL, 0); 
		
		// Cannot test the return value of AdjustTokenPrivileges. 
		if (GetLastError() != ERROR_SUCCESS) 
		{
			//Error in AdjustTokenPrivileges
			return;
		}
	}

	ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, 0);
}