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Re: C++ and directories

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"Juha Nieminen" <nospam@thanks.invalid> wrote in message 
news:4e4bbbea$0$4367$7b1e8fa0@news.nbl.fi...
> Nobody <nobody@nowhere.com> wrote:
>> On Tue, 16 Aug 2011 11:42:39 +0000, Juha Nieminen wrote:
>>
>>>   Anyways, is there a reason why the C++ standard couldn't include a
>>> library similar to boost::filesystem?
>>
>> A third-party library has more leeway. It's up to the third-party
>> developer whether "it sort-of works, on common platforms" is good enough.
>> If e.g. an OS vendor complains that the interface is a poor match for
>> their OS's filesystem semantics, the boost developers can just say
>> "tough luck". But the ISO standardisation process is rather more 
>> involved.
>
>  Not everything even in the current standard is something that *must*
> work on every system in existence.
>
>  For example, where does the output of std::cout (or printf from that
> matter) go? There actually *are* systems which have no concept of
> standard output streams, and std::cout/printf can hence fail (for example
> printf returns the amount of printed characters for this precise reason).
>
>  However, std::cout/printf work in the vast majority of systems, and
> programs written using them are usually not even intended to be run on
> those obscure (usually embedded) systems that have no support. (Have you
> ever seen a "hello world" program in C or C++ that actually checks that
> printing succeeded? The fair assumption can be made that if you have
> a system with no standard output you wouldn't be running such a program
> on it anyways.)
>
>  (Ok, the printing can fail for other reasons as well, eg. if standard
> output is redirected to a file and an error happens. Of course trying to
> handle this kind of error from the program itself would be quite 
> difficult.)
>
>  I think a file system library is feasible even for the C++ standard,
> especially if it includes means to check that the target architecture
> has proper support.

If so then shouldn't it be the case that if a std directory lib is 
standardised it should work on all systems that have a file directory 
system?

Obviously it would be up to common sense to decide that its not going to 
work on a system with no file directories, just as is the case with the STD 
I/O not working on a system without an I/O system. 


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C++ and directories "Edward Hvarregaard" <edwardh@shaw.ca> - 2011-08-15 17:49 -0700
  Re: C++ and directories Ian Collins <ian-news@hotmail.com> - 2011-08-16 12:55 +1200
    Re: C++ and directories jt@toerring.de (Jens Thoms Toerring) - 2011-08-16 11:15 +0000
  Re: C++ and directories Nobody <nobody@nowhere.com> - 2011-08-16 11:57 +0100
    Re: C++ and directories Juha Nieminen <nospam@thanks.invalid> - 2011-08-16 11:42 +0000
      Re: C++ and directories Marc <marc.glisse@gmail.com> - 2011-08-16 11:49 +0000
      Re: C++ and directories jt@toerring.de (Jens Thoms Toerring) - 2011-08-16 11:58 +0000
      Re: C++ and directories Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-08-16 16:02 +0000
      Re: C++ and directories Nobody <nobody@nowhere.com> - 2011-08-17 13:09 +0100
        Re: C++ and directories Juha Nieminen <nospam@thanks.invalid> - 2011-08-17 13:02 +0000
          Re: C++ and directories Nobody <nobody@nowhere.com> - 2011-08-17 18:11 +0100
          Re: C++ and directories "Paul" <pchristor@yahoo.co.uk> - 2011-08-18 20:38 +0100
            Re: C++ and directories Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-08-23 01:03 -0700
          Re: C++ and directories Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-08-23 01:06 -0700
  Re: C++ and directories Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-08-16 15:24 +0000
  Re: C++ and directories "Bo Persson" <bop@gmb.dk> - 2011-08-17 12:39 +0200
    Re: C++ and directories Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-08-17 11:39 +0000
  Re: C++ and directories "Edward Hvarregaard" <edwardh@shaw.ca> - 2011-08-22 10:06 -0700

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