Re: [Boost-bugs] [Boost C++ Libraries] #3076: [multi_index] assertion failure sorting an empty collection in VC10 Beta 1

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #3076: [multi_index] assertion failure sorting an empty collection in VC10 Beta 1
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-05-25 13:00:40

#3076: [multi_index] assertion failure sorting an empty collection in VC10 Beta 1
----------------------------------------------------------+-----------------
  Reporter:  Richard Webb <richard.webb_at_[hidden]>  |       Owner:  joaquin    
      Type:  Bugs                                         |      Status:  closed     
 Milestone:  Boost 1.40.0                                 |   Component:  multi_index
   Version:  Boost 1.38.0                                 |    Severity:  Problem    
Resolution:  fixed                                        |    Keywords:             
----------------------------------------------------------+-----------------

Comment(by joaquin):

 Hi Richard,

 Thanks for reporting this bug. I've just commited a fix:

 https://svn.boost.org/trac/boost/changeset/53246


 I'd appreciate if you can have keep an eye on this to
 make sure the problems in bimap eventually disappear.

 There's one thing in your description of the problem that
 puzzles me a bit: you say that std::copy asserts because
 the third parameter is NULL, yet it seems to me that
 it's entirely ok to invoke

   std::copy(first,last,NULL);

 as long as first==last and consequently NULL is not
 dereferenced. Can you provide me with more info on
 the kind of assertion failure you're seeing? Can't it
 rather be the expression &*buf that is failing?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3076#comment:2>
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