> At the very least, you should specify, exactly, one schema file that> shows
> your problem. Without a concrete test case, nobody can help you.> > Dale>
> The shema file is MPEG7-2001.xsd which can be downloaded at
> http://m7itb.nist.gov/Mpeg7-2001.xsdMy metadata file has the following
> content:<Mpeg7 xmlns="urn:mpeg:mpeg7:schema:2001"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:mpeg7="urn:mpeg:mpeg7:schema:2001"
xsi:schemaLocation="urn:mpeg:mpeg7:schema:2001 Mpeg7-2001.xsd">
<DescriptionMetadata>
<Version>1.0</Version>
<PrivateIdentifier>descriptionUnitExample</PrivateIdentifier>
</DescriptionMetadata>
<DescriptionUnit xsi:type="ScalableColorType" numOfCoeff="16"
numOfBitplanesDiscarded="0">
<Coeff> 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 </Coeff>
</DescriptionUnit>
</Mpeg7>
If I don't put the mpeg7-2001.xsd in the same directory as the metadata file,
my code doesn't crash the application
> OK, so your application is writing to memory it doesn't own. If you run it
> in the debugger, the debugger will break when the write occurs, and you can
> see a stack trace. From that point, you should be able to figure out the
> problem.
>
The problem occurs as soon as I call mpParser->parse(*memBufIS). I cannot work
it out, so I posted the question here.
The strangest thing is my code works well with other metadata sets (e.g. Dublin
Core). Again, here is my code:
XMLPlatformUtils::Initialize();
XERCES_CPP_NAMESPACE::XMLGrammarPoolImpl* GrammarPool = new
XMLGrammarPoolImpl(XMLPlatformUtils::fgMemoryManager);
XERCES_CPP_NAMESPACE::XercesDOMParser* parser= new XercesDOMParser(0,
XMLPlatformUtils::fgMemoryManager, GrammarPool);
XercesDOMParser::ValSchemes valScheme = XercesDOMParser::Val_Always;
parser->setValidationScheme(valScheme);
parser->setDoNamespaces(true);
parser->setDoSchema(true);
parser->setValidationSchemaFullChecking(true);
parser->setIncludeIgnorableWhitespace(false);
MemBufInputSource* memBufIS = new MemBufInputSource(
(const
XMLByte*)pXMLString, // pXMLString is the data to be parsed
strlen(pXMLString),
"FromString",
false);
parser->parse(*memBufIS); // CRASH here
The error message is:
"Unhandled exception at 0x... in foo.exe: 0xC0000005: Access violation writing
location 0x...."
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