------- Comment #10 from don dot wakefield at gmail dot com 2010-09-10 15:15
(In reply to comment #9)
> Ok. I don't think we should change the code to deal such specially with off ==
> 0, if we are going to change it we should decouple the return value from what
> the underlying seek returns, and always call fseek(..., width * off, ...) as
> the standard mandates. Then dealing with off == 0 becomes simple.
I'm not sure I understand what you are saying. My concern is that calls to
filebuf::seekoff(0,ios::cur) should not invalidate the buffer just to return a
correct answer to "where am I?". Whether this is an accident of history or not,
I've seen this usage enshrined in code as a respected idiom.
Does your text above specify this?