merkle reverse

[SimonN]

On Thursday, 5 April 2018 at 09:07:52 UTC, Seb wrote:
> FYI: The problem isn't chunks, but that strings aren't 
> bi-directional ranges (hello ugly auto-decoding!).
> "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b".byCodeUnit

Thanks! Very appropriate because it's all hex digits anyway.

Instead of std.experimental.all, one can also import std.utf.

Initially, I wondered whether autodecoding was the issue here, 
but I dismissed it because the OP's example calls retro 
immediately on a string, which is supposedly not autodecodable as 
bi-directional. But I should examine retro's implementation 
because I remember several Phobos functions having special cases 
for strings (which is exactly the issue of auto-decoding).

-- Simon