Variant converts from negative number in string format to unsigned integer
without error
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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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