[Boost-bugs] [Boost C++ Libraries] #11335: units: [patch] Improve precision of mmHg conversion to Pascal

Subject: [Boost-bugs] [Boost C++ Libraries] #11335: units: [patch] Improve precision of mmHg conversion to Pascal
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-05-22 20:10:49

#11335: units: [patch] Improve precision of mmHg conversion to Pascal
------------------------------------+-----------------------------
 Reporter:  Roger Leigh <rleigh@…>  |      Owner:  matthiasschabel
     Type:  Patches                 |     Status:  new
Milestone:  To Be Determined        |  Component:  units
  Version:  Boost 1.55.0            |   Severity:  Problem
 Keywords:                          |
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 See attached patch.

 The conversion factor used by the existing code only used three decimal
 places.  However, the standardised conversion factor is 9 decimal places,
 and is also used in GNU units.  Changing to use the full 133.322387415
 significantly improves accuracy.

 I can't put a link in the report since it makes the ticket get rejected as
 spam, but see the first paragraph of the "Millimeter of mercury" wikepedia
 page, and GNU units for reference.

 Defect is in the latest boost back to at least 1.55.

 Please consider applying the attached patch.


 Thanks,
 Roger

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11335>
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