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Repro Bug in CXTPSyntaxEditLexTagsAutomat
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MacW View Drop Down
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Joined: 26 June 2007
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Points: 253 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MacW Quote  Post ReplyReply Direct Link To This Post Topic: Repro Bug in CXTPSyntaxEditLexTagsAutomat
    Posted: 04 August 2007 at 9:28am
I have a reproducible crash while loading an XML file in the method

CXTPSyntaxEditLexTagsAutomat::_FindWord

Visual C++ reports "Run-Time Check Failure #2 - Stack around the variable 'dwChar2' was corrupted." in the line


            WORD dwChar2 = 0;
            TCSNCCPY_S((LPTSTR)&dwChar2, sizeof(TCHAR) + 1, pcszBuffer, 1);
            rstrWord += (LPCTSTR)&dwChar2;


sizeof(TCHAR) + 1 is used to specify the size of the WORD stack variable, which fails when you compile in with _UNICODE defined.
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sserge View Drop Down
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Joined: 01 December 2004
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Points: 1297 		Post Options Post Options   Thanks (0) Thanks(0)   Quote sserge Quote  Post ReplyReply Direct Link To This Post Posted: 05 August 2007 at 4:37pm
Hi,

Thanks, this has been already fixed for the next version. Below is the code update if needed:

if (m_ptrWordsMap_not)
{
    if (!m_ptrWordsMap_not->FindWord(bMinWord, pcszBuffer, rstrWord, nBufSize, bConvertToLowerCase, bIgnoreCaseDyn))
    {
        DWORD dwChar2 = 0;
        TCSNCCPY_S((LPTSTR)&dwChar2, 2, pcszBuffer, 1);
        rstrWord += (LPCTSTR)&dwChar2;
        return TRUE;
    }
}


--
WBR,
Serge
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MacW View Drop Down
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Joined: 26 June 2007
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Points: 253 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MacW Quote  Post ReplyReply Direct Link To This Post Posted: 11 August 2007 at 9:25am
Thanks.
I'll do the patch here and wait for the next release.
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