Re: AC_CHECK_FILES on /dev/stdin

[Andreas Schwab]

David Fang <address@hidden> writes:

>> >    To give a little more context for what I'm trying to do in C++
>> > (experimentally): I've discovered that std::ifstream foo("/dev/stdin")
>> > results in a file stream that works just like cin, likewise for stdout,
>> > etc...  Just like in standard C, one could use stdin, stdout, stderr as
>> > FILE*, I'd like to do the equivalent with std::fstream's.  (std::cin is a
>> > basic_istream, not type-equivalent to a basic_ifstream.)
>>
>> But basic_ifstream is a basic_istream.
>
> Sorry for the confusion, I meant that the need to be *identical*, not just
> derivable from the other, because I'm containing their objects (value),
> not references.
>       struct foo { ifstream _stream; };

I think you are making a design bug.  An iostream is generally not
copyable, so you should always using it via a reference.

Andreas.

-- 
Andreas Schwab, SuSE Labs, address@hidden
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