Re: [boost] [filesystem] C++11 range-based for statement and BOOST_FOREACH support

Subject: Re: [boost] [filesystem] C++11 range-based for statement and BOOST_FOREACH support
From: Jeff Flinn (Jeffrey.Flinn_at_[hidden])
Date: 2012-07-15 09:22:02

On 7/13/2012 8:01 AM, Andrey Semashev wrote:
> On Friday 13 July 2012 07:55:13 Beman Dawes wrote:
>>
>> I don't see any abuse of begin() and end(). They were put in the core
>> language's list of ways to enable range-base for so that there would
>> be no need to add the complication of a separate class plus a
>> make_x_range function to handle cases like this. Unless I'm missing
>> something, adding wrappers the user must use increases complexity and
>> reduces teachability without adding additional functionality. The
>> beauty of begin/end free functions is that the user doesn't even have
>> to know they exist - range-based for "just works".
>
> The user has to know that directory_iterator is special and can be used as a
> range. This doesn't simplify teaching. At least, not for me.

+1

I too would like to see a directory_range(const path&). Not just for use 
with BOOST_FOR_EACH, but primarily for use with boost range. Whether 
this belongs in filesystem or in range is an open question. (to me at 
least:-))

Jeff