Re: [Boost-bugs] [Boost C++ Libraries] #4445: boost:math::float_advance( 0.0, 2 ) stack overflows if denormal numbers are set to zero

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4445: boost:math::float_advance( 0.0, 2 ) stack overflows if denormal numbers are set to zero
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-07-17 09:23:04

#4445: boost:math::float_advance( 0.0, 2 ) stack overflows if denormal numbers are
set to zero
------------------------------------------------+---------------------------
  Reporter:  Emmet Spier <emmet.spier@…>        |       Owner:  johnmaddock
      Type:  Bugs                               |      Status:  new        
 Milestone:  Boost 1.44.0                       |   Component:  math       
   Version:  Boost 1.40.0                       |    Severity:  Showstopper
Resolution:                                     |    Keywords:             
------------------------------------------------+---------------------------

Comment (by johnmaddock):

 (In [79572]) Tentative fix for issue #4445.
 Adds tests for next.hpp when using the SSE2 instruction set in DAZ and FTZ
 modes.
 Note that FTZ mode is particularly pernicious as non-zeros can change to
 zeros at random points in program flow depending upon the exact
 instructions generated by the compiler - thus breaking program
 logic/invariants.
 Refs #4445.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4445#comment:2>
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