Re: [Boost-bugs] [Boost C++ Libraries] #13191: undefined reference error when ODR-using boost::ratio::{num, den}

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #13191: undefined reference error when ODR-using boost::ratio::{num, den}
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-11-01 23:03:20

#13191: undefined reference error when ODR-using boost::ratio::{num,den}
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  Reporter:  anonymous         |      Owner:  viboes
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  ratio
   Version:  Boost 1.59.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+---------------------

Comment (by yuri.goldfeld@…):

 Ah, glad I'm not the only person experiencing this. gcc and clang C++03
 mode => code was fine for years; clang C++11 mode => undefined reference
 for ratio<>::num and ::den.

 Though, I am not totally sure what "ODR-using" is, exactly, nor how to
 work around this. I'm sure I'll find a way, but this seems like a rather
 significant link error given the simplicity and thus probable commonness
 of what is being attempted here. It doesn't seem like the repro (nor my
 code, not provided here) is doing anything strange.

-- 
Ticket URL: <https://svn.boost.org/trac10/boost/ticket/13191#comment:2>
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