[Boost-bugs] [Boost C++ Libraries] #4784: numeric/interval/hw_rounding for __amd64__

Subject: [Boost-bugs] [Boost C++ Libraries] #4784: numeric/interval/hw_rounding for __amd64__
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-25 02:51:02

#4784: numeric/interval/hw_rounding for __amd64__
-------------------------------------------------+--------------------------
 Reporter:  Jim Bell <jim@…>                     |       Owner:         
     Type:  Tasks                                |      Status:  new    
Milestone:  To Be Determined                     |   Component:  None   
  Version:  Boost Development Trunk              |    Severity:  Problem
 Keywords:  hardware rounding control __amd64__  |  
-------------------------------------------------+--------------------------
 Interval fails regression tests requiring
 numeric/interval/hw_rounding.hpp. It gives
 {{{
 ../boost/numeric/interval/hw_rounding.hpp:40:4: error: #error
 Boost.Numeric.Interval: Please specify rounding control mechanism.
 }}}

 My compiler defines __amd64__ (note the double underscores before and
 after).  How do I determine the hardware rounding control mechanism?

 Here's [http://support.amd.com/us/Processor_TechDocs/24592.pdf the AMD64
 manual (pdf)], but I don't understand things well enough to say which
 mechanism it uses.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4784>
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