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Subject: Re: [boost] [string] proposal
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2011-01-26 13:02:02

Dean Michael Berris wrote:
> If what you substitute for String is the hypothetical `boost::string`
> then what happens is the view will interpret it as raw data underlying
> the view.
> If you're substituting a view<some_encoding> for String then what
> happens is the internal view<encoding> construction will hold a copy
> of the (immutable) view<some_encoding>, and upon access to the
> iterators would do the transcoding on the fly.

Doesn't your approach mean that the work done to produce the code points or characters (or transcoding) is not cached? Each iteration of the view does the work again. That can be appropriate in many cases, but there are also plenty of cases in which one wants to do the decoding/transcoding and save the result for repeated use.

Rob Stewart robert.stewart_at_[hidden]
Software Engineer, Core Software using std::disclaimer;
Susquehanna International Group, LLP

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