Re: [Boost-bugs] [Boost C++ Libraries] #13036: Boost.Regex: Integer overflow during calculation of max_state_count

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #13036: Boost.Regex: Integer overflow during calculation of max_state_count
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-07-03 21:51:54

#13036: Boost.Regex: Integer overflow during calculation of max_state_count
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  Reporter:  anonymous                |      Owner:
      Type:  Bugs                     |     Status:  new
 Milestone:  To Be Determined         |  Component:  None
   Version:  Boost Development Trunk  |   Severity:  Problem
Resolution:                           |   Keywords:  regex  max_state_count
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Comment (by Brian Minard <bminard@…>):

 I did not report this issue, but have attached a reproducer.

 A patch: https://github.com/boostorg/regex/pull/32.

 FWIW, overflow occurs when the states variable is greater than sqrt(2^31)
 (on a 32-bit platform).

 The value of the states variable is implementation dependent whenever
 re.size() returns a value greater than
 std::numeric_limits<std::ptrdiff_t>::max() (size() method returns a value
 of type std::size_t.)

--
Ticket URL: <https://svn.boost.org/trac10/boost/ticket/13036#comment:1>
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