RE: [boost] immutable string

From: Hartmut Kaiser (hartmutkaiser_at_[hidden])
Date: 2004-09-19 13:37:07

Beman Dawes wrote:

>  >Just wanted to mention here, that I've used const_string as 
> a plug in
>  >replacement for std::string for my Wave library and 
> succeeded without any
>  >further problems. Moreover, the const_string class gave a 
> perfomance 
> boost
>  >of about 20% if compared to the flex_string and about 100% 
> if compared to
>  >the std::string (I can provide the concrete numbers, if somebody is
>  >interested). But these numbers certainly very specific to 
> Wave and its
>  >applications.
> 
> 100% gets my attention, that's for sure!
> 
> Could you give a small example of a typical usage or two? I'd 
> like to form 
> an opinion as to how common the usage is likely to be.

I've simply used the const_string class instead of the
std::string/flex_string classes. The const_string class exposes a
std::string compatible interface (sans the modifying member functions,
certainly), so this was possible without problems.

Regards Hartmut