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https://issues.apache.org/jira/browse/QPID-3206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13019331#comment-13019331
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jirapos...@reviews.apache.org commented on QPID-3206:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/596/#review443
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Ship it!


- Kenneth


On 2011-04-13 13:00:09, Gordon Sim wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/596/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2011-04-13 13:00:09)
bq.  
bq.  
bq.  Review request for Andrew Stitcher, Alan Conway, Kenneth Giusti, Ted Ross, 
and Steve Huston.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  Add special test for negative numeric strings when converting to unsigned 
values. (It appears - though I could be wrong - that in basic form stringstream 
does not do any special handling of negatives for different locales. That 
appears only to be done for money values.)
bq.  
bq.  
bq.  This addresses bug QPID-3206.
bq.      https://issues.apache.org/jira/browse/QPID-3206
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    /trunk/qpid/cpp/src/qpid/types/Variant.cpp 1090157 
bq.    /trunk/qpid/cpp/src/tests/Variant.cpp 1090157 
bq.  
bq.  Diff: https://reviews.apache.org/r/596/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  New tests included in patch
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Gordon
bq.  
bq.



> Variant converts from negative number in string format to unsigned integer 
> without error
> ----------------------------------------------------------------------------------------
>
>                 Key: QPID-3206
>                 URL: https://issues.apache.org/jira/browse/QPID-3206
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker, C++ Client
>    Affects Versions: 0.8, 0.10
>            Reporter: Gordon Sim
>            Assignee: Gordon Sim
>             Fix For: 0.11
>
>
> E.g. 
>   uint16_t i = 0;
>   qpid::types::Variant v = "-5";
>   i = v;
> The above results in an exception in older versions of gcc (e.g. 4.1.2) but 
> sets i to 65531 on later versions (e.g. 4.4.4). This is a result of a fix to 
> the gcc std library to be compliant with specification which requires 
> stringstream to accept negative values even for unsigned ints (which is the 
> behaviour of scanf).
> See e.g:
> http://boost.2283326.n4.nabble.com/conversion-lexical-cast-doesn-t-throw-td2593967.html
> http://groups.google.com/group/comp.lang.c++.moderated/browse_thread/thread/97475b21515462c9/ce369a327fa39243#ce369a327fa39243

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