Amhuxt.425
net.games.trivia
utzoo!decvax!harpo!eagle!mhuxt!presley
Mon Apr 26 12:32:58 1982
Answers to Parametrivia (mhuxt.420)
The problem was what the final values for B[1] and B[2] are,
using different forms of parameter passing in the following
ALGOL-like program:
-----
BEGIN INTEGER I; INTEGER ARRAY B[1,2];
PROCEDURE Q(X); INTEGER X;
BEGIN I := 1; X := X + 2; B[I] := 10;
I := 2; X := X + 2;
END;
B[1] := 1; B[2] := 1; I := 1; Q(B[I]);
END;
-----
call by.. B[1] B[2]
reference 12 1
value 10 1
value result 5 1
result undef 1
name 10 3
Joe Presley
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