[Bug libstdc++/26458] Passing a NULL char* into output stream now breaks the output stream

["phil at mitre dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #7 from phil at mitre dot org  2006-02-24 20:40 -------
Subject: RE:  Passing a NULL char* into output stream now breaks the output
stream

Agreed, the stream object itself hopfully doesn't get corrupted (bad),
but what I was refering to was "the data" itself, not the stream
object.  That is, in producing an output stream with a particular
structure and cadence, it IS possible for it to become corrupted by
violating the protocol of that output.  In my recent example I was
explaining how, even if I asserted ostream state and detected that an
error had occurred, I would not be able to determine WHERE the error
had occurred.  So I could do cout.clear() and go on but, given my
example, I wouldn't know which exact << operator failed when strung
together.  Therefore my output would be in a indeterminent state and I
may well be better off if I'd just crashed and been forced to fix the
problem.

                phil


Phil Brown
Lead Software Systems Engineer
Mitre CAASD
phil@mitre.org

Perception is nine-tenths of the flaw.


>-----Original Message-----
>From: pcarlini at suse dot de [mailto:gcc-bugzilla@gcc.gnu.org] 
>Sent: Friday, February 24, 2006 2:57 PM
>To: Brown, Phil
>Subject: [Bug libstdc++/26458] Passing a NULL char* into 
>output stream now breaks the output stream
>
>
>
>------- Comment #6 from pcarlini at suse dot de  2006-02-24 
>19:56 -------
>(In reply to comment #2)
>> Otherwise, there's great potential that the output stream (the data)
>> will become corrupted, even if you manage to check it state.
>
>By the way, there is no such thing as a "corrupted stream". 
>Either the state is
>good, or it isn't. If, for some reason, you fear it isn't 
>better checking it.
>
>
>-- 
>
>
>http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26458
>
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-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26458