c++/1743: iostream::seekg does not reset fail and eof bits

[tarot at chez dot com]

>Number:         1743
>Category:       c++
>Synopsis:       iostream::seekg does not reset fail and eof bits
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jan 23 06:36:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Stephane TAROT
>Release:        g++ 2.95.2 19991024 and over
>Organization:
>Environment:
linux i686
>Description:
iostream::seekg does not clear the fail and eof bits
when accessing a good position after a bad one.
ie : if you seekg(0) after reaching the EOF, fail() and
eof() remains true.
Looking at the 20010115 snapshot of gcc 2.96, I think the
bug still exists.

(I'm French and I hope my english is clear enough)
>How-To-Repeat:
g++ main.cc -o main
main
>Fix:
If think that the solution is to add a clear() call
in the "else" part of the "if" statement in
iostream::seekg(streampos pos) and
iostream::seekg(streampos pos, _seek_dir dir)
in iostream.cc
>Release-Note:
>Audit-Trail:
>Unformatted:
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