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Visual C++ Access violation reading location 0x00000004

Posted on 2010-08-14
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1,795 Views
Last Modified: 2012-05-10
Well...i've converted to bstr 10 different ways and still get this error.

Unhandled exception at 0x00f61ce0 (FEPAdapterWrapperCPP2.dll) in ceraexe0471.exe: 0xC0000005: Access violation reading location 0x00000004.

I’m sure it just has to do with the way I’m referring to a variable…. Here is the code causing the error.

Last line is where the error occurs……. pstrInputClaim is passed into this function as a char[]

                  CComBSTR bstr(pstrInputClaim);
                  BSTR bstrInputClaim = bstr.Copy();    
                  vResult = plDomDocument->loadXML(bstrInputClaim,&bSuccess);

thanks for your continued support : )
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Question by:fraeliz8
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pgnatyuk earned 250 total points
ID: 33437762
An example from Microsoft is here:
http://msdn.microsoft.com/en-us/library/dd893387(VS.85).aspx

they simply use CComBSTR.

I think, in your case

CComBSTR bstr(pstrInputClaim);
hr = pXMLDoc->loadXML(bstr, & bSuccess);

will work.

I didn't forget about CoInitialize
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Author Comment

by:fraeliz8
ID: 33437954
Thanks.... turns out the bstr conversion was not the problem..but that example you provided from MSDN helped my find the problem...it was with the pXMLDoc....not being valid.... all is good for now..thanks so much.
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LVL 33

Expert Comment

by:pgnatyuk
ID: 33437985
You are welcome. I'm glad to help.
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