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Description of problem: In RHEL 5, converting a Variant such as "-5" to an unsigned short would throw an exception. In RHEL 6, no exception is thrown and the value wraps around (e.g. -5 becomes 65531). It looks like something in Boost's lexical_cast() implementation has changed between Boost 1.33.1 (RHEL 5) and 1.41.0 (RHEL 6).
Version-Release number of selected component (if applicable): qpid-cpp-client-0.10-3.el6.x86_64.rpm
How reproducible: 100%
Steps to Reproduce:
Compile and run the following on both RHEL 5 and RHEL 6:
#include <iostream>
#include <qpid/types/Variant.h>
using namespace std;
int main(int argc, char** argv) {
uint16_t i;
qpid::types::Variant v = "-5";
i = v;
cout << i << endl;
}
Actual results: the number is converted. Running on RHEL 6 results in this output:
65531
Expected results: an exception that -5 can't be converted. When running on RHEL 5, it results in this output:
terminate called after throwing an instance of 'qpid::types::InvalidConversion'
what(): invalid conversion: Cannot convert -5 (qpid/types/Variant.cpp:118)
Aborted
Tested on RHEL6.2 on both main architectures (i686 and x86_64), packages versions:
qpid-cpp-client-0.12-6.el6.i686
qpid-cpp-client-devel-0.12-6.el6.i686
qpid-cpp-client-rdma-0.12-6.el6.i686
qpid-cpp-client-ssl-0.12-6.el6.i686
qpid-cpp-debuginfo-0.12-6.el6.i686
qpid-cpp-server-0.12-6.el6.i686
qpid-cpp-server-cluster-0.12-6.el6.i686
qpid-cpp-server-devel-0.12-6.el6.i686
qpid-cpp-server-rdma-0.12-6.el6.i686
qpid-cpp-server-ssl-0.12-6.el6.i686
qpid-cpp-server-store-0.12-6.el6.i686
qpid-cpp-server-xml-0.12-6.el6.i686
qpid-java-client-0.10-11.el6.noarch
qpid-java-common-0.10-11.el6.noarch
qpid-java-example-0.10-11.el6.noarch
qpid-java-jca-0.10-11.el6.noarch
qpid-java-jca-zip-0.10-11.el6.noarch
qpid-qmf-0.12-6.el6.i686
qpid-qmf-debuginfo-0.12-6.el6.i686
qpid-qmf-devel-0.12-6.el6.i686
qpid-tools-0.12-2.el6.noarch
The example code from the description returns the right error:
terminate called after throwing an instance of 'qpid::types::InvalidConversion'
what(): invalid conversion: Cannot convert -5 (qpid/types/Variant.cpp:131)
Aborted
-> VERIFIED
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
http://rhn.redhat.com/errata/RHBA-2011-1670.html
Description of problem: In RHEL 5, converting a Variant such as "-5" to an unsigned short would throw an exception. In RHEL 6, no exception is thrown and the value wraps around (e.g. -5 becomes 65531). It looks like something in Boost's lexical_cast() implementation has changed between Boost 1.33.1 (RHEL 5) and 1.41.0 (RHEL 6). Version-Release number of selected component (if applicable): qpid-cpp-client-0.10-3.el6.x86_64.rpm How reproducible: 100% Steps to Reproduce: Compile and run the following on both RHEL 5 and RHEL 6: #include <iostream> #include <qpid/types/Variant.h> using namespace std; int main(int argc, char** argv) { uint16_t i; qpid::types::Variant v = "-5"; i = v; cout << i << endl; } Actual results: the number is converted. Running on RHEL 6 results in this output: 65531 Expected results: an exception that -5 can't be converted. When running on RHEL 5, it results in this output: terminate called after throwing an instance of 'qpid::types::InvalidConversion' what(): invalid conversion: Cannot convert -5 (qpid/types/Variant.cpp:118) Aborted