Re: [boost] Re: [filesystem] Major changes before standardization

From: Beman Dawes (bdawes_at_[hidden])
Date: 2004-11-11 20:17:52

At 01:46 PM 11/11/2004, Thorsten Ottosen wrote:
 >Hi Beman,
 >
 >"Beman Dawes" <bdawes_at_[hidden]> wrote in message
 >news:6.0.3.0.2.20041111114438.028c55d8_at_mailhost.esva.net...
 >| I'm currently working on a major revision of the Boost filesystem 
library
 >| aimed at getting it ready to be proposed to the C++ committee for the
 >next
 >| Library TR.
 >
 >I have a few requests:
 >
 >1. there should be a really easy way to iterate over a directory in a
 >recursive fashion; possibly
 >    with the chioce of doing DFS or BFS. I know we have discussed this
 >before,
 >but I feel it is so commonly
 >    used that it should be supported.
 >
 >2. there should be a functions like this:
 >
 >    template< class Seq >
 >    Seq load_file( const std::string& );
 >
 >    template< class Seq >
 >     Seq load_file( const path& );
 >
 >    which would permit stuff like
 >
 >    std::string s = load_file<std::string>( "foo.txt" );
 >
 >    A naive implementation would simply do Seq seq( iter, iter ); return
 >seq;
 >    but the idea is of course that faster methods like mem-mapping could 
be
 >used.

AFAICS, those functions can be built on top of the existing filesystem 
functionality. Thus they are lower priority for me than 
internationalization.

But, yes, they would be useful, and I have often had to hand-coded both 
recursion and bulk load/save. That's the point of the convenience header; 
to be able to have at hand convenient functionality built on top of the 
library's core functionality.

--Beman