[Boost-bugs] [Boost C++ Libraries] #12209: cpp_bin_float: Subtraction of negative infinity from negative number produces negative infinity

Subject: [Boost-bugs] [Boost C++ Libraries] #12209: cpp_bin_float: Subtraction of negative infinity from negative number produces negative infinity
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-05-16 23:06:56

#12209: cpp_bin_float: Subtraction of negative infinity from negative number
produces negative infinity
-------------------------------------+----------------------------
 Reporter:  Michael Shatz            |      Owner:  johnmaddock
     Type:  Bugs                     |     Status:  new
Milestone:  To Be Determined         |  Component:  multiprecision
  Version:  Boost Development Trunk  |   Severity:  Problem
 Keywords:                           |
-------------------------------------+----------------------------
 cpp_bin_float: subtraction of negative infinity from negative number
 produces negative infinity instead of positive infinity.

 Platform: Mingw, gcc 5.3.0, x64. All optimization levels.
 Library version: newest files from github
 1.60.0 also produces wrong result, but there it is nan rather than -inf

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/12209>
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