Re: [Boost-bugs] [Boost C++ Libraries] #10993: frexp with multiprecision cpp_dec_float_50 returns random values with VS 2013

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #10993: frexp with multiprecision cpp_dec_float_50 returns random values with VS 2013
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-02-07 08:50:17

#10993: frexp with multiprecision cpp_dec_float_50 returns random values with VS
2013
-------------------------------+-----------------------------------
  Reporter:  pbristow          |      Owner:  christopher_kormanyos
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  multiprecision
   Version:  Boost 1.57.0      |   Severity:  Problem
Resolution:                    |   Keywords:  cpp_dec_float_50
-------------------------------+-----------------------------------

Comment (by anonymous):

 >But the sample code shows frexp obtaining faulty results for the integer
 exponent argument. This is not a multiprecision type. I don't understand
 what the exponent obtained in frexp has to do with et_on or et_off. I'm
 confused here.

 The function is never evaluated in the et_on case unless the returned
 value is assigned to something - so the integer argument remains
 uninitialized.  It's a bug in the expression template code really, will
 fix shortly.  John.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10993#comment:4>
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