Re: [boost] [filesystem] #6521 Directory listing using C++11 range-based for loops

Subject: Re: [boost] [filesystem] #6521 Directory listing using C++11 range-based for loops
From: Beman Dawes (bdawes_at_[hidden])
Date: 2012-04-19 11:29:27

On Thu, Apr 19, 2012 at 9:57 AM, Beman Dawes <bdawes_at_[hidden]> wrote:
> Ticket #6521 requests adding:
>
>        class directory{
>            path p_;
>            public:
>                inline directory(path p):p_(p){}
>                directory_iterator begin(){
>                    return directory_iterator(p_);
>                }
>                directory_iterator end(){
>                    return directory_iterator();
>                }
>        };
>
> so that that a range-based for loop can be used:
>
>     for (auto itr : directory("."))
>     {
>         cout << itr.path() << endl;
>     }
>
> The above works as expected on GCC 4.6 and VC++ 11 beta.
>
> Is that the best way for filesystem directory iteration to support
> range-based for?

Ticket #5896, Range directory iterators, suggests basing a solution on
boost::iterator_range<bfs::directory_iterator>, and that's an obvious
alternative to explore.

--Beman