C / C++ / MFC

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

CFrameWnd::m_bAutoMenuEnable = FALSE;

BOOL CMainFrame::OnCmdMsg(UINT nID, <font color=blue>int</font> nCode, <font color=blue>void</font>* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo)
{
   CFrameWnd::OnCmdMsg(nID, nCode, pExtra, pHandlerInfo);
   <font color=blue>return</font> TRUE;
}

VuNic wrote:

Union takes up memory for only the thing that we assign value

The compiler allocates a piece of storage that is large enough to hold the largest variable type in the union

VuNic wrote:

Union takes up memory for only the thing that we assign value

union myU {
    long l;
    char c;
};

myU u;
u.c = 5;
 
ASSERT(sizeof(u) == 4);