[boost] Re: immutable string

From: David B. Held (dheld_at_[hidden])
Date: 2004-09-18 17:40:53

Jonathan Turkanis wrote:
> [...]
> 2. I don't understand the following statement:
> 
>     Unlike std::basic_string<>, empty string object references empty c-style
> string "".

I think this means that if the string contains a charT*, it will never
be null (but rather point to a special empty string object).  I don't 
see why the user would need to know that, unless it implies something
special about begin() and end().

> 3. What are the semantics of
> 
>     std::string str("abc");
>     h(boost::cref(str));

Without looking at the code, I would expect that the const_string<>
would share a representation with str, thus implying that it had
better not outlive str.

Dave