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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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16
Task/Undefined-values/ALGOL-68/undefined-values.alg Normal file
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MODE R = REF BOOL;
R r := NIL;
MODE U = UNION(BOOL, VOID);
U u := EMPTY;
IF r IS R(NIL) THEN
print(("r IS NIL", new line))
ELSE
print(("r ISNT NIL", new line))
FI;
CASE u IN
(VOID):print(("u is EMPTY", new line))
OUT print(("u isnt EMPTY", new line))
ESAC