[Boost-bugs] [Boost C++ Libraries] #7842: Inaccuracies on intro page for range adaptors

Subject: [Boost-bugs] [Boost C++ Libraries] #7842: Inaccuracies on intro page for range adaptors
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-01-03 00:50:15

#7842: Inaccuracies on intro page for range adaptors
-------------------------------------+--------------------------------------
 Reporter:  nathanridge              |       Owner:  neilgroves
     Type:  Bugs                     |      Status:  new       
Milestone:  To Be Determined         |   Component:  range     
  Version:  Boost Development Trunk  |    Severity:  Cosmetic  
 Keywords:                           |  
-------------------------------------+--------------------------------------
 The "Introduction and Motivation" page for Range Adaptors has a number of
 issues:

 1. The example where a use of boost::count_if is replaced by boost::count
 + the filtered adaptor is conceptually wrong (there is no reasonable value
 to pass as the second argument to boost::count to get the desired
 behaviour). In the example, a bogus argument called 'out' is passed.

 2. More generally, the claim that "[in light of range adaptors]
 '''''no''''' algorithm with the _if suffix is needed" is misleading. See
 my analysis in this post for details: http://boost.2283326.n4.nabble.com

 /range-count-vs-count-if-tp4374377p4388398.html

 This section of the documentation needs to be cleaned up a bit, and it
 perhaps needs to make less bold claims :)

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7842>
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