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https://issues.apache.org/jira/browse/XERCESC-2138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16372208#comment-16372208
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Roger Leigh commented on XERCESC-2138:
--------------------------------------
I've attached a few patches which clean up some particular old features,
enabling namespaces and standard header usage by default. There's much more
which could be cleaned up; this is just a demonstration.
Interestingly, with the above patches, it uncovers a *lot* of extra warnings.
Many would be resolved with the appropriate C++ casts, but there could be a
number of bugs lurking in there which were previously hidden from sight.
Fixing all this stuff up could potentially improve the quality of the
implementation, so might be worth considering for a point release. While the
above diffs might look scary, there are no API changes and it's primarily
removal of autoconf/cmake checks which are pointless with a standard C++
implementation.
> Xerces-C++ should use C++98 features and remove pre-Standard workarounds
> ------------------------------------------------------------------------
>
> Key: XERCESC-2138
> URL: https://issues.apache.org/jira/browse/XERCESC-2138
> Project: Xerces-C++
> Issue Type: Bug
> Components: Build
> Affects Versions: 3.2.0
> Reporter: Johnny Willemsen
> Priority: Trivial
> Attachments: 0001-Make-XSConstants-a-namespace.patch,
> 0002-Drop-XERCES_HAS_CPP_NAMESPACE-check.patch,
> 0003-Drop-XERCES_STD_NAMESPACE-check.patch,
> 0004-Drop-XERCES_NO_NATIVE_BOOL-check.patch,
> 0005-Drop-XERCES_NEW_IOSTREAMS-check.patch,
> 0006-Use-cstdlib-in-place-of-stdlib.h.patch,
> 0007-Use-cstdio-in-place-of-stdio.h.patch,
> 0008-Use-cstring-in-place-of-string.h.patch,
> 0009-Remove-use-of-strings.h.patch
>
>
> When compiling xercesc-3.2.0 with mingw-64 gcc 4.9.3 on Windows we get a lot
> of warnings, for example:
> class xercesc_3_2::XSConstants' only defines private constructors and has no
> friends
> In file included from
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/src/xercesc/framework/psvi/XSObject.hpp:26:0,
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] from
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/src/xercesc/framework/psvi/XSTypeDefinition.hpp:25,
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] from
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/src/xercesc/framework/psvi/XSSimpleTypeDefinition.hpp:25,
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] from
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/src/xercesc/validators/datatype/DatatypeValidator.hpp:32,
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] from
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/src/xercesc/framework/XMLAttr.hpp:28,
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] from
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/src/xercesc/framework/XMLValidator.hpp:25,
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] from
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/src/xercesc/sax2/SAX2XMLReader.hpp:27,
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] from
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/samples/src/SAX2Print/SAX2Print.cpp:28:
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc]
> C:/cygwin64/home/administrator/build-ad87109bfff0765f4dd8cf4943b04d16a4070fea/xerces-c-3.2.0/src/xercesc/framework/psvi/XSConstants.hpp:56:24:
> warning: 'class xercesc_3_2::XSConstants' only defines private constructors
> and has no friends [-Wctor-dtor-privacy]
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] class XMLPARSER_EXPORT XSConstants
> Gandalf_win10_x86_64_01(administrator@172.16.2.213)
> [pkg_xercesc:windows-pkg-xercesc] ^
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