A rather glaring inconsistency that I just discovered in SRFI 224 is
that fxmapping-update-min and -max both take optional 'failure'
continuations, while fxmapping-update does not.  I'd like to fix this.
What's preferable to you--'failure's for both, or neither?

More generally, when should we choose this pattern over returning
a default value or signaling an error?  The SRFIs differ on this
point.

--
Wolfgang Corcoran-Mathe  <xxxxxx@sigwinch.xyz>

"If work is to become play, then tools must become toys."
--Lee Felsenstein