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Re: [v3] libstdc++/6518

Andreas Schwab wrote:

>I'm talking about an string of length 0, not a null pointer.  I cannot
>find anything in the standard that requires badbit being set when an empty
>string is passed to operator<<.
>
IMHO, this is a very good point: the /real/ reason why this commit is 
becoming quite controversial is that the bad bit is set not only upon a 
null pointer but also upon a zero length string: unfortunately the hunks 
which now set the badbit work in terms of __len and therefore are not 
able to tell the former situation from the latter!

Ciao, Paolo.
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