[Boost-bugs] [Boost C++ Libraries] #2229: Provide a 'base()' member for adapted views or locators.

Subject: [Boost-bugs] [Boost C++ Libraries] #2229: Provide a 'base()' member for adapted views or locators.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-08-19 23:50:22

#2229: Provide a 'base()' member for adapted views or locators.
----------------------------------+-----------------------------------------
 Reporter:  john.femiani_at_[hidden]  |        Type:  Bugs        
   Status:  new                   |   Milestone:  Boost 1.36.0
Component:  None                  |     Version:  Boost 1.36.0
 Severity:  Problem               |    Keywords:              
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 I would like the result of `typename View::template add_deref<fn>::type`
 to include a member function `View& base()`, much like the iterator
 adapters currently do (and std::reverse_iterator).

 Imagine I have an rgb-to-hsv converted view, and then  want to convert it
 back to rgb. All I should have to do is call `base()`

 The actual use case: I have a deref function that exposes a reference to
 the element in a gray pixel. I also have a function that takes a view to
 regular types and creates an adapted view to gray pixels with that element
 type.

 I want to be ample to write them so that:
 `same_types(make_pixel(remove_pixel(T)), T)`

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/2229>
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