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https://issues.apache.org/jira/browse/STDCXX-680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12602726#action_12602726
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Travis Vitek commented on STDCXX-680:
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Relevant discussion can be found in the following threads...
[http://www.nabble.com/forum/ViewPost.jtp?post=12502600]
[http://www.nabble.com/forum/ViewPost.jtp?post=16457463]
[http://www.nabble.com/forum/ViewPost.jtp?post=16457463]
If we plan to do as suggested in the last thread, we should defer this to 4.3.
Another viable option would be to enable the -qrtti=all option when compiling
the tests via GNUmakefile.tst. At least this way the build line for the tests
includes the option so that the library will function correctly.
> use_facet and has_facet are unreliable unless dynamic_cast is available
> -----------------------------------------------------------------------
>
> Key: STDCXX-680
> URL: https://issues.apache.org/jira/browse/STDCXX-680
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 22. Localization
> Affects Versions: 4.1.2, 4.1.3, 4.1.4, 4.2.0
> Reporter: Travis Vitek
> Assignee: Travis Vitek
> Priority: Minor
> Fix For: 4.2.2
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> The function that is called by has_facet<>() and use_facet<>() uses
> _RWSTD_DYNAMIC_CAST in an attempt to check that the returned locale facet is
> of the requested type. Unfortunately, if RTTI is not supported or enabled,
> that cast becomes unreliable.
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