Re: std::string or vector<BYTE>

From:
Mosfet <mosfet@anonymous.org>
Newsgroups:
comp.lang.c++
Date:
Mon, 02 Mar 2009 12:26:19 +0100
Message-ID:
<49abc261$0$21951$426a74cc@news.free.fr>
Mosfet a ?crit :

Hi,

I would like to retrieve a stream containing a unicode string, so I
would like to know what is the best methode to retrieve this stream.
Here is what is currently done :

    do
    {
        pStream->Read(szBuf, 255, &ulNumChars);
        if (ulNumChars >0)
        {
            static CString strBodyPart;

            memmove(strBodyPart.GetBuffer(ulNumChars), szBuf, ulNumChars);
            strBody += strBodyPart;
            strBodyPart.ReleaseBuffer(ulNumChars);
        }
    } while (ulNumChars >= 255);

I would like to replace this code by something portable and I don't know
if I should use a vector<BYTE> or a std::string.
How would you do it in a efficient maner ?

Finally I did this :

std::vector<BYTE> arrByte;
arrByte.reserve(255);

do
    {
        hr = pStream->Read(szBuf, 255, &ulNumChars);
        if (ulNumChars >0)
        {
            arrByte.insert(arrByte.end(), szBuf, szBuf+ulNumChars);
        }
    } while (ulNumChars >= 255);

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