[Boost-bugs] [Boost C++ Libraries] #12041: fusion::traits for proxy types

Subject: [Boost-bugs] [Boost C++ Libraries] #12041: fusion::traits for proxy types
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-03-04 16:25:52

#12041: fusion::traits for proxy types
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 Reporter:  jensweller@…      |      Owner:  djowel
     Type:  Feature Requests  |     Status:  new
Milestone:  To Be Determined  |  Component:  fusion
  Version:  Boost 1.61.0      |   Severity:  Problem
 Keywords:                    |
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 This ticket has its origin in this thread:
 http://lists.boost.org/Archives/boost/2016/03/228115.php


 When working in generic code, one cannot determine if the underlying
 fusion::vector or other containers are containing a proxy type or not.

 E.g. fusion::result_of::at_c<Seq, I>::type requires an extra ::type, while
 this will likely error on normal fusion types. It would be nice to be able
 to seperate these by a enable_if into seperate methods.

 This is related to ADAPT_STRUCT and ADAPT_STRUCT_ADT usage, _ADT structs
 will result in using proxies in the type vectors.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12041>
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