Re: [Boost-bugs] [Boost C++ Libraries] #6171: nonconforming behavior of inverse functions on branch cuts

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6171: nonconforming behavior of inverse functions on branch cuts
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-12-13 18:11:51

#6171: nonconforming behavior of inverse functions on branch cuts
----------------------------------------------------+-----------------------
  Reporter:  Richard B. Kreckel <kreckel@…>         |       Owner:  johnmaddock
      Type:  Bugs                                   |      Status:  closed     
 Milestone:  To Be Determined                       |   Component:  math       
   Version:  Boost 1.48.0                           |    Severity:  Problem    
Resolution:  fixed                                  |    Keywords:             
----------------------------------------------------+-----------------------
Changes (by johnmaddock):

  * status:  new => closed
  * resolution:  => fixed

Comment:

 (In [75933]) Fix complex number routines to work with signed zeros,
 changes involve:
 * Use boost::math::signbit rather than comparison to zero.
 * Use boost::math::changesign rather than unary negation (unary negation
 fails for Intel on Linux when the argument is a zero).
 * Update to use boost::math::isnan/isinf rather than the old code.
 * Update to use boost::math constants.
 Fixes #6171.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6171#comment:3>
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