David Fang <fang@xxxxxxxxxxxxxxx> 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, schwab@xxxxxxx
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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"And now for something completely different."
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