Re: [Boost-bugs] [Boost C++ Libraries] #12500: cpp_bin_float default value is NaN. But should be 0 according to the documentation.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12500: cpp_bin_float default value is NaN. But should be 0 according to the documentation.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-10-05 02:12:57

#12500: cpp_bin_float default value is NaN. But should be 0 according to the
documentation.
-------------------------------+----------------------------
  Reporter:  alex@…            |      Owner:  johnmaddock
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  multiprecision
   Version:  Boost 1.62.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+----------------------------

Comment (by alex@…):

 To be more precise the default constructor code is:

 cpp_bin_float() BOOST_MP_NOEXCEPT_IF(noexcept(rep_type())) : m_data(),
 m_exponent(exponent_nan), m_sign(false) {}

 After I have adjusted it in my local copy of boost:

 cpp_bin_float() BOOST_MP_NOEXCEPT_IF(noexcept(rep_type())) : m_data(),
 m_exponent(exponent_zero), m_sign(false) {}

 it seems to create zeroes.
 That is I've replaced exponent_nan with exponent_zero.
 I am just not sure if this adjustment is sufficient and consistent.

 Thank you

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12500#comment:1>
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