[boost] Re: static sized strings

From: Miro Jurisic (macdev_at_[hidden])
Date: 2004-05-26 16:12:43

In article <BAY7-F100BnrqhugXhq0003f7da_at_[hidden]>,
 "Reece Dunn" <msclrhd_at_[hidden]> wrote:

> John Nagle wrote:
> >   Since space for a trailing null is required, the
> >minimum "capacity" is currently 1.
> >
> >   The maximum value for "size()" is then "capacity()-1".
> >That seems a little wierd.  Should the trailing null be counted in 
> >"capacity?"
> 
> This is a good point. At the moment fixed_string< n >::capacity() == n. It 
> would therefore make sense that this be changed so that either:
> 
> [1] fixed_string< n >::capacity() == n - 1 -- this would seem 
> counter-intuitive, as fixed_string< 1 > would not be able to store any 
> characters!

Same goes for char[1], if you assume the string is NUL-terminated.

> [2] change CharT str[ n ] to CharT str[ n + 1 ] -- i.e. add an extra 
> character for the trailing null. This would make more sense, as it is similar 
> to:
>    char * str = new char[ s.length() + 1 ];
> 
> I personally but a vote for solution 2, but what do other people think?

I vote for #1, because it makes the char[] -> fixed_string<n> transition easier. 

meeroh

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