Hello Urs, You’re right, "#t or X" is always #t, and "#t and X" is just X.
JM > Le 6 mars 2015 à 08:25, Urs Liska <u...@openlilylib.org> a écrit : > > I find > > %% switch on debugging. > #(if (and #t (defined? 'set-debug-cell-accesses!)) > (set-debug-cell-accesses! 5000)) > > (found in init.ly) > > strange. > Wouldn't it be better ot simply remove the 'and' construct? > #t evaluates to #t always, isn't it? > > Or is this one more Scheme subtlety I don't get? > > Best > Urs > > _______________________________________________ > lilypond-user mailing list > lilypond-user@gnu.org > https://lists.gnu.org/mailman/listinfo/lilypond-user _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user