Re: URLStream sock; .... if (!sock) ---> ambiguous operator!() --> Socket/istream

[David Sugar]

The lowercase streams came into existance because the original Common C++ ones 
behaved differently in some ways from their std C++ counterparts.  Hence, 
TCPStream is different in some ways from related things like "fstream" in 
it's behavior, where "tcpstream" would presumably be closer to the same 
behavior.  The main difference is that Common C++ objects throw their own 
exception class family and that they do not have a seperate "open" method 
since this is normally done in the constructor directly.  Should there be a 
urlstream?

On Friday 12 September 2003 10:07 am, George Yohng wrote:
> When an URLStream is declared and one would want to check it against being
> valid with operator!, compiler error is issued.
>
> conversion to bool works allright.
>
> URLStream sock;
>
> if (!sock) -----> fails during compilation
>
> if (!(bool)sock) --------> works
>
> One has to add this operator explicitly to URLStream, I guess.
>
> Otherwise, lowercase tcpstream implements this operator, is it that there
> should be lowercase urlstream also?
>
> Thanks,
> George.
>
>
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