Re: [boost] Standard stream from C fopen()

Subject: Re: [boost] Standard stream from C fopen()
From: Eric MALENFANT (Eric.Malenfant_at_[hidden])
Date: 2010-11-12 17:34:14

De : Claude 
> 
> So these lines are right?
> 
>   stream_buffer<file_descriptor_source> fpstream  (fileno(fd));
>   std::istream in (&fpstream);
> 
> I making a stream_buffer from with a file_descriptor_source as template
> parameter...

Almost. You should create the file_descriptor_source to pass it to the stream_buffer's constructor:

  stream_buffer<file_descriptor_source> fpstream(file_descriptor_source(fileno(fp)));
  std::istream in (&fpstream);

You could also avoid the intermediate stream_buffer by simply writing:

  stream<file_descriptor_source> in(file_descriptor_source(fileno(fp)));

instead, because a boost::iostreams::stream<something_that_is_a_source> inherits from std::istream

(BTW, don't forget to fclose()!)

> Excuse me , but I don't know well the C++...

No problem, it happened even to the best here :)

 
> OT
> How can I move this question in "user" mailing list?
> /OT

See http://www.boost.org/community/groups.html#users