OMIF
[GENERIC-FUNCTION]
OM 6.1
Function Reference
| - test | IF | ||
| - action | THEN | ||
|
&optional |
|||
| - else | ELSE | ||
Description:
IF <test> THEN <action> ELSE <else>.
If the evaluation of <test> is not NIL, evaluates <action>.
Otherwise evaluates <else> (when supplied) or returns NIL.
Ex. (omif (= 4 4) 'A 'B) ==> 'A
Ex. (omif (= 4 5) 'A 'B) ==> 'B
Ex. (omif (= 4 5) 'A) ==> NIL