[RFC/Patch] libstdc++/14320 aka class type streamoff doesn't work :(

[Paolo Carlini]

Paolo Carlini wrote:

> Gabriel Dos Reis wrote:
>
>> | Keeping streamoff as a class type, basically amount to closing 14320
>> | as "WONTFIX"
>>
>> That is not what that would imply.
>>
>> One of the testcase says that operator*= is not defined.  Another
>> wanted to insert or extract. It occurs to me that thr right course of
>> action is to provide those instead of removing the class.
>
> And what about the first testcase? And the fourth?

Also, besides the details of the various testcases, please consider that 
the name of the PR is "istreambuf_iterator::difference_type is not a 
signed integral type", therefore, clearly, we are talking about 
signed-integral-type-ness, not about changing a class to behave "as if" 
it were a C++ signed integral type. The testcases, are just 
exemplifications of the general point.

Again, I'm convinced that we cannot answer the spirit of the PR while 
keeping class streamoff.

Paolo.