[Bug libstdc++/26907] Two times filebuf::sungetc() at beginning of file gives undefined result

[pcarlini at suse dot de]

------- Comment #4 from pcarlini at suse dot de  2006-03-28 21:27 -------
(In reply to comment #3)
> And this is not true: any number of sungetc() at the beginning of the file
> fails (all return eof()) and the next sbumpc() exactly returns the first char
> of file. Indeed, If I run your testcase (with the testcase itself as test.dat)
> I get:
> #
> #-35
> And all the implementations I tried (besides v3) do the same.

I'm sorry, I can reproduce the problem with 4.0.2, *not* with 4.1.0 or
mainline, that's why I didn't understand the point (there are no major changes
in the library in this area), I'm looking into the reason of the misbehavior of
4.0.2.


-- 

pcarlini at suse dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|INVALID                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26907