AndrevanTonder scripsit: > I do not personally like one-armed IF, but let me point out that AND/OR > can also be used instead of WHEN/UNLESS.
"when" and "unless", however, nicely discard all values except the value of the guard, which is not true of "and" or "or". (when p a b) evaluates b iff it evaluates a, regardless of the value of a; not so for (or p a b). -- Do what you will, John Cowan this Life's a Fiction [EMAIL PROTECTED] And is made up of http://www.ccil.org/~cowan Contradiction. --William Blake _______________________________________________ r6rs-discuss mailing list [email protected] http://lists.r6rs.org/cgi-bin/mailman/listinfo/r6rs-discuss
