Re: [Boost-users] boost 1.34.1 Foreach conversion to iterators.

From: Eric Niebler (eric_at_[hidden])
Date: 2007-08-06 01:03:40

chun ping wang wrote:
> reply thanks. Sort of off topic but does foreach need access to iterator 
> (and not const_iterator).. like i have class B deriving from private 
> std::vector<int> i allow const_iterator but not iterator.  I get compile 
> time error.

FOREACH uses Boost.Range. If your type doesn't naturally meet the 
requirements for a range (and it sounds like it doesn't), you must hook 
Boost.Range's customization points. Check the documentation.

http://boost.org/doc/html/foreach/extensibility.html

-- 
Eric Niebler
Boost Consulting
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