[jira] [Assigned] (XERCESC-2168) Memory leak in ValueVectorOf

["Scott Cantor (Jira)" <xe...@xml.apache.org>]

     [ https://issues.apache.org/jira/browse/XERCESC-2168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Scott Cantor reassigned XERCESC-2168:
-------------------------------------

    Assignee: Scott Cantor

> Memory leak in ValueVectorOf
> ----------------------------
>
>                 Key: XERCESC-2168
>                 URL: https://issues.apache.org/jira/browse/XERCESC-2168
>             Project: Xerces-C++
>          Issue Type: Bug
>          Components: Utilities
>    Affects Versions: 3.2.2
>            Reporter: Laurent Pelecq
>            Assignee: Scott Cantor
>            Priority: Major
>             Fix For: 3.2.3
>
>         Attachments: memory_leaks_no_realloc.txt, memory_leaks_realloc.txt, xerces_leak.cpp, xerces_operator_leak.patch
>
>
> ValueVectorOf has been changed to call the object destructors for example in ~ValueOfVector:
> {{{color:#205081}template <class TElem> ValueVectorOf<TElem>::~ValueVectorOf(){color}}}
> {{{color:#205081}{{color}}}
> {{    {color:#8eb021}if (fCallDestructor) {{color}}}
> {{{color:#8eb021}        for (XMLSize_t index=fMaxCount; index > 0; index--){color}}}
> {{{color:#8eb021}            fElemList[index-1].~TElem();{color}}}
> {{{color:#8eb021}    }{color}}}
> {{{color:#205081}    fMemoryManager->deallo[link title|http://example.com]cate(fElemList); //delete [] fElemList;{color}}}
> {{{color:#205081}}{color}}}
> But the code is missing in ValueVectorOf<TElem>::operator=.
> A sample code is attached with the corresponding valgrind reports. The sample covers the case where the buffer shrinks (no realloc) or grows (pass realloc as argument to the command).
> The attached patch fixes the leak.
>  
>  



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