Re: [Boost-bugs] [Boost C++ Libraries] #11625: BOOST_TEST( ..., per_element() ) erroneously requires collections are comparable

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #11625: BOOST_TEST( ..., per_element() ) erroneously requires collections are comparable
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-01-23 14:40:28

#11625: BOOST_TEST( ..., per_element() ) erroneously requires collections are
comparable
-------------------------------------+-------------------------------------
  Reporter:  Tony Lewis              |      Owner:  renficiaud
  <tonyelewis@…>                     |     Status:  reopened
      Type:  Bugs                    |  Component:  test
 Milestone:  To Be Determined        |   Severity:  Problem
   Version:  Boost 1.60.0            |   Keywords:
Resolution:                          |  BOOST_TEST,per_element,collections,comparable,element,range,equality
-------------------------------------+-------------------------------------

Comment (by Tony Lewis <tonyelewis@…>):

 Thanks for this, yes I can confirm that I'm able to fix my problems by
 adding `size` and `value_type`. Sorry - I should have RTFM properly :-).

 To make it harder for others to repeat my mistake, it might be useful to:
  * add a note
 [http://www.boost.org/libs/test/doc/html/boost_test/testing_tools/extended_comparison/collections.html#boost_test.testing_tools.extended_comparison.collections.requirements

 here] to explicitly state that the comparators must meet the requirements
 of a sequence and then link to
 [http://www.boost.org/libs/test/doc/html/boost_test/testing_tools/extended_comparison/collections.html#boost_test.testing_tools.extended_comparison.collections.what_is_a_sequence

 the definition further down that page] that you highlighted.
  * ideally use a `Sequence` concept to make the compiler errors more
 helpful. I realise that you may be keen to avoid adding a dependency to
 the Boost Concept library.

 Again, thanks and apologies. I'm happy for you to close this ticket.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11625#comment:9>
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