I'm working on S03 tests, and S03 says:
Perl 6 also supports Str decrement with similar semantics,
simply by running the cycles the other direction. However,
leftmost characters are never removed, and the decrement
fails when you reach a string like "aaa" or "000".
Is this "fails" as in "throws an Exception", "mutates into an
undef / Failure / Exception object", or something else entirely?
(Interested readers are encouraged to look at the "Exceptions"
section of S04 for notes about failure and exceptions.)
Thanks!
Pm
