[RFC] Another look at LFS vs filebuf::showmanyc

[Nathan Myers]

On Mon, Sep 20, 2004 at 07:55:56PM +0200, Dirk Jagdmann wrote:
> > What about returning numeric_limits<streamsize>::max() in such cases?
> 
> sounds reasonable, because that way you have usable code. And I don't
> think someone really wants to do something like
> std::vector<int> (stream.rdbuf().showmanyc());
> with possible >2G of characters on a 32bit platform.
> 
> And further showmanyc() is required to return *a* number of characters
> that can be read with blocking, but not necessarily the maximum
> number.

I agree.  I see little benefit to ever returning a value bigger 
than (say) 1M.  Is this the only place where the streamsize proves 
too small to yield the (strictly) correct answer?  That would be 
uncommonly good luck.

Nathan Myers
ncm-nospam@cantrip.org