[Boost-bugs] [Boost C++ Libraries] #5494: lexical_cast<unsigned int>("-1") fails to throw

Subject: [Boost-bugs] [Boost C++ Libraries] #5494: lexical_cast<unsigned int>("-1") fails to throw
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-04-21 07:46:18

#5494: lexical_cast<unsigned int>("-1") fails to throw
----------------------------------------------------+-----------------------
 Reporter:  Rupert Kittinger-Sereinig <rks@…>       |       Owner:  nasonov     
     Type:  Bugs                                    |      Status:  new         
Milestone:  To Be Determined                        |   Component:  lexical_cast
  Version:  Boost 1.45.0                            |    Severity:  Problem     
 Keywords:  lexical_cast                            |  
----------------------------------------------------+-----------------------
 The following fails to throw:

 std::cout << boost::lexical_cast<unsigned int>(std::string("-1"))
           << std::endl;

 output: 4294967295

 which looks a lot like static_cast<unsigned int>(-1)

 boost version: 1.45
 compiler: g++ (Debian 4.4.5-8) 4.4.5

 For my project, this is a serious problem since lexical_cast is used for
 input validation

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/5494>
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