[Boost-bugs] [Boost C++ Libraries] #2823: [fusion] vector copy constructor copies sequence members in different order on different platforms

Subject: [Boost-bugs] [Boost C++ Libraries] #2823: [fusion] vector copy constructor copies sequence members in different order on different platforms
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-03-03 17:44:25

#2823: [fusion] vector copy constructor copies sequence members in different order
on different platforms
--------------------------------+-------------------------------------------
 Reporter:  dkomisar_at_[hidden]  |       Owner:  djowel 
     Type:  Bugs                |      Status:  new    
Milestone:  Boost 1.39.0        |   Component:  fusion 
  Version:  Boost 1.38.0        |    Severity:  Problem
 Keywords:                      |  
--------------------------------+-------------------------------------------
 The generalized fusion::vector copy constructor for constructing from
 arbitrary fusion sequences does its copying in reverse order on one of my
 machines.  This does not occur with vector copy assignment, and does not
 occur at all with fusion::list (see attached code).

 In all my real world use this has not made a difference; I uncovered it in
 a unit test.  The attached code shows what happens when you use
 transform_view to transform a fusion sequence with a stateful fusion
 functor.

 Correct order:
 Mac PPC OS 10.5.6 Darwin Kernel 9.6.0 gcc 4.2.1

 Reverse order:
 Linux 2.6.9-42.0.3.ELsmp i686 i686 i386 gcc 4.2.4

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2823>
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