[Boost-bugs] [Boost C++ Libraries] #4830: generalize fusion::as_map and fusion::pair

Subject: [Boost-bugs] [Boost C++ Libraries] #4830: generalize fusion::as_map and fusion::pair
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-11-10 00:35:17

#4830: generalize fusion::as_map and fusion::pair
--------------------------------+-------------------------------------------
 Reporter:  eric_niebler        |       Owner:  djowel 
     Type:  Feature Requests    |      Status:  new    
Milestone:  To Be Determined    |   Component:  fusion 
  Version:  Boost 1.44.0        |    Severity:  Problem
 Keywords:  fusion as_map pair  |  
--------------------------------+-------------------------------------------
 Given an {{{mpl::vector}}} of keys, and a {{{fusion::vector}}} of values,
 what's the easiest way to create a fusion::map?

 The obvious solution of just zipping the two sequences and passing the
 result to {{{fusion::as_map}}} doesn't work because {{{as_map}}} (somewhat
 narrowly) requires all elements to be {{{fusion::pair}}}, and Fusion's zip
 algorithm produces sequences of {{{vector2}}}. I'd like to see this
 generalized so that (a) {{{as_map}}} only requires sequences of 2-tuples
 and (b) {{{fusion::pair}}} meets the requirements for 2-tuples.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4830>
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