immutable strings vs std::string

Posted by Caspin on Stack Overflow See other posts from Stack Overflow or by Caspin
Published on 2010-05-26T20:05:56Z Indexed on 2010/05/26 20:11 UTC
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c++

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string

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immutable

I've recent been reading about immutable strings, here and here as well some stuff about why D chose immutable strings. There seem to be many advantages.

trivially thread safe
more secure
more memory efficient in most use cases.
cheap substrings (tokenizing and slicing)

Not to mention most new languages have immutable strings, D2.0, Java, C#, Python, Ruby, etc.

Would C++ benefit from immutable strings?

Is it possible to implement an immutable string class in c++ (or c++0x) that would have all of these advantages?

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