Why the hell doesn't foreach decode strings

[Walter Bright]

On 10/20/2011 9:06 PM, Jonathan M Davis wrote:
> It's this very problem that leads some people to argue that string should be
> its own type which holds an array of code units (which can be accessed when
> needed) rather than doing what we do now where we try and treat a string as
> both an array of chars and a range of dchars. The result is schizophrenic.

Making such a string type would be terribly inefficient. It would make D 
completely uncompetitive for processing strings.