Re: [Boost-bugs] [Boost C++ Libraries] #9966: exponential_distribution returns negative zero

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9966: exponential_distribution returns negative zero
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-02-27 23:13:00

#9966: exponential_distribution returns negative zero
-------------------------------+---------------------------
  Reporter:  mazzamuto@…       |      Owner:  no-maintainer
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  random
   Version:  Boost 1.48.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+---------------------------

Comment (by steven_watanabe):

 It looks like all standard library implementations are essentially similar
 to Boost.Random.  I checked msvc 2013, gcc 4.8.3, and libc++ ToT.  The
 only difference is that libstdc++ and libc++ use generate_canonical.  They
 all use -log(1 - X)/lambda were X is a uniform variate in [0, 1) and can
 therefore produce the value 0.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9966#comment:7>
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