[jira] [Created] (XERCESC-2119) warning C4251: 'xercesc_3_2::TranscodeToStr::fString': class 'xercesc_3_2::ArrayJanitor' needs to have dll-interface to be used by clients of class 'xercesc_3_2::TranscodeToStr'

["Mathieu Champlon (JIRA)" <xe...@xml.apache.org>]

Mathieu Champlon created XERCESC-2119:
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             Summary: warning C4251: 'xercesc_3_2::TranscodeToStr::fString': class 'xercesc_3_2::ArrayJanitor<XMLByte>' needs to have dll-interface to be used by clients of class 'xercesc_3_2::TranscodeToStr'
                 Key: XERCESC-2119
                 URL: https://issues.apache.org/jira/browse/XERCESC-2119
             Project: Xerces-C++
          Issue Type: Bug
          Components: Utilities
    Affects Versions: 3.2.0
         Environment: windows
            Reporter: Mathieu Champlon
         Attachments: dll_interface.patch

Upgrading from xerces 3.1.2 to 3.2.0 on windows introduces a few of
{noformat}
(...)\include\xercesc/util/TransService.hpp(559): error C2220: warning treated as error - no 'object' file generated
(...)\include\xercesc/util/TransService.hpp(559): warning C4251: 'xercesc_3_2::TranscodeToStr::fString': class 'xercesc_3_2::ArrayJanitor<XMLByte>' needs to have dll-interface to be used by clients of class 'xercesc_3_2::TranscodeToStr'
(...)\include\xercesc/util/TransService.hpp(559): note: see declaration of 'xercesc_3_2::ArrayJanitor<XMLByte>'
(...)\include\xercesc/util/TransService.hpp(641): warning C4251: 'xercesc_3_2::TranscodeFromStr::fString': class 'xercesc_3_2::ArrayJanitor<XMLCh>' needs to have dll-interface to be used by clients of class 'xercesc_3_2::TranscodeFromStr'
(...)\include\xercesc/util/TransService.hpp(641): note: see declaration of 'xercesc_3_2::ArrayJanitor<XMLCh>'
{noformat}

As pragma deactivating C4251 is frown upon on the project I work, I ended up exporting the types, see attached patch.
Note that this was also mentioned in XERCESC-1974.



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