Re: [Boost-bugs] [Boost C++ Libraries] #7730: Generic specializations of is_nullary for custom terminals are not possible

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7730: Generic specializations of is_nullary for custom terminals are not possible
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-02-22 12:15:56

#7730: Generic specializations of is_nullary for custom terminals are not possible
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  Reporter:  andysem           |      Owner:  theller
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  phoenix
   Version:  Boost 1.52.0      |   Severity:  Problem
Resolution:                    |   Keywords:
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Comment (by John Fletcher <J.P.Fletcher@…>):

 What is needed (I think) is to provide a default value for the second
 template parameter. At the moment the default is void, so could we catch
 that? Seems risky to me. John

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/7730#comment:18>
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