Re: [boost] Re: static sized strings

From: Rob Stewart (stewart_at_[hidden])
Date: 2004-05-27 09:36:37

From: John Nagle <nagle_at_[hidden]>
> Rob Stewart wrote:
> > From: John Nagle <nagle_at_[hidden]>
> > 
> >>   Since space for a trailing null is required, the
> >>minimum "capacity" is currently 1.
> > 
> > This means your class supports strings that can never contain any
> > data.  Is that something that should be permissible?
> 
>   That's actually useful.  Consder the 
                             ^^^^^^^^^^^
I assume you send your message before completing your thought.

> >>   The maximum value for "size()" is then "capacity()-1".
> >>That seems a little wierd.  Should the trailing null be
> >>counted in "capacity?"  
> > 
> > No, capacity() should return the maximum value size() can attain.
> > Think about the typical approach to allocating a C string:
> > 
> >    size_t const MAX_LENGTH(10);
> >    char buffer[MAX_LENGTH + 1];
> > 
> > This permits using MAX_LENGTH in comparisons with
> > strlen(buffer).  I think capacity() is analogous to MAX_LENGTH.

-- 
Rob Stewart                           stewart_at_[hidden]
Software Engineer                     http://www.sig.com
Susquehanna International Group, LLP  using std::disclaimer;