shuffle a character array

[ag0aep6g via Digitalmars-d-learn]

On 07/20/2016 06:18 PM, Mike Parker wrote:
> The relevant lines I quoted from the docs above explain quite clearly
> that it's because they are multi-byte formats. Indexing them is not
> inefficient, it simply makes no sense. What does it mean to take the
> value at index i when it is part of a multi-byte sequence that continues
> at index i+1? Auto-decoding has nothing to do with it.

Without auto decoding, char[] would (most probably) be a random access 
range of code units. Taking the value at index i would return the code 
unit at index i, like it does for the array.

It's not that way, because narrow strings are decoded by the range 
primitives (auto decoding).