Re: Can i use CComPtr in CSimplemap?

From:
"wtller" <wtller@yahoo.com>
Newsgroups:
microsoft.public.vc.atl
Date:
Wed, 17 Dec 2008 06:49:57 +0800
Message-ID:
<86402705-34AB-4D0D-9D0B-C2C6BA4E55E9@microsoft.com>
I use it like this way:
 CComPtr<IDispatch> disp;
 ...
 CSimpleMap<CComPtr<IDispatch>,WTL::CString> m;
 m.Add(disp,L"...");

 CSimpleMap.Add didn't zero the memeory it realloc'd:

  BOOL Add(TKey key, TVal val)
    {
        TKey* pKey;
        pKey = (TKey*)realloc(m_aKey, (m_nSize + 1) * sizeof(TKey));
        if(pKey == NULL)
            return FALSE;
          ...

   and here, CSimpleMap use the newer alloc'd object's address:

    void SetAtIndex(int nIndex, TKey& key, TVal& val)
    {
        ATLASSERT(nIndex >= 0 && nIndex < m_nSize);
        new(&m_aKey[nIndex]) Wrapper<TKey>(key);

  but CComPtr cannot use it's address if it's member 'p' isn't null

   //The assert on operator& usually indicates a bug. If this is really
    //what is needed, however, take the address of the p member explicitly.
    T** operator&()
    {
        ATLASSERT(p==NULL);
        return &p;
    }

  So, i have to use plain pointer instead of smart pointer with CSimpleMap.
  Could you give me some ideas?

"Igor Tandetnik" <itandetnik@mvps.org> ????????
news:O#OtBPrXJHA.868@TK2MSFTNGP06.phx.gbl...

"wtller" <wtller@yahoo.com> wrote in message
news:09B7ADE7-D4E7-41A4-975B-D178162FADC8@microsoft.com

like this: CSimpleMap<CComPtr<IUnknown>,int>


Yes, this should work. Have you tried it and encountered problems?
--
With best wishes,
   Igor Tandetnik

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