[Patch] Nathan's improvements to basic_string

[Paolo Carlini]

Loren James Rittle wrote:

>>Everything considered we believe with Loren (more expert
>>than me of MT topics) that [Nathan's string impl] patch
>>should go in as soon as possible, but nevertheless will
>>wait some additional 24 hours, just in case...
>>    
>>
>I can confirm that I tested the exact logical patch that you posted on
>{i386,alpha}-unknown-freebsd4 even though I updated it myself.
>
Thanks.

>My only concern (in terms of committing it ASAP to mainline) might be
>that this is at least a reverse incompatibility.  It may be (i.e. I
>think it is but haven't personally tested it) forward compatible.
>
I believe that for 3.4 we are completely free to break the ABI, don't 
you?... see, f.i., what we have already committed for iostreams (not to 
mention what's around the corner ;)

Paolo.