[ http://nagoya.apache.org/jira/browse/XERCESC-1294?page=comments#action_54991 ]
Joanne Bogart commented on XERCESC-1294:
----------------------------------------
Newer versions of gcc also complains about unused arguments. There you can eliminate
the warnings by changing the implementation (not the declaration in the .h file) to
look like
virtual DOMDocumentType*
createDocumentType(const XMLCh* /* qName */,
const XMLCh* /* publicId */,
const XMLCh* /* systemId */)
That is, just declare the argument types, but don't give named dummy arguments. For
documentation it's often convenient to include them in comments as above.
> Compiler Warnings on IRIX with MIPSpro compiler ver 7.4
> -------------------------------------------------------
>
> Key: XERCESC-1294
> URL: http://nagoya.apache.org/jira/browse/XERCESC-1294
> Project: Xerces-C++
> Type: Bug
> Components: Build, DOM
> Versions: 2.6.0
> Environment: MIPSpro compiler version 7.4
> IRIX 6.5
> Reporter: Norman Samuelson
> Priority: Minor
>
> Every file that includes xercesc/dom/DOMDocument.hpp results in a couple of warnings
> about unused parameters. The compiler is unhappy that params are defined and never
> used. Here is the offending code:
> virtual DOMDocumentType* createDocumentType(const XMLCh *qName,
> const XMLCh *publicId,
> const XMLCh *systemId)
> {
> return createDocumentType(qName);
> }
> I understand that the function is defined this way to maintain compatibility, but
> warnings are annoying and ignoring them leads to dangerous territory. One easy way
> to fix this would be to add the following two lines just before the return statement:
> if (publicId) ; /* unused arg */
> if (systemId) ; /* unused arg */
> This may not work on all platforms, as it might cause other warnings, but similar
> techniques should work.
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