[boost] Re: immutable string

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