RosettaCodeData/Task/Array-concatenation/Component-Pascal/array-concatenation.pas

56 lines
1.2 KiB
ObjectPascal

MODULE ArrayConcat;
IMPORT StdLog;
PROCEDURE Concat(x: ARRAY OF INTEGER; y: ARRAY OF INTEGER; OUT z: ARRAY OF INTEGER);
VAR
i: INTEGER;
BEGIN
ASSERT(LEN(x) + LEN(y) <= LEN(z));
FOR i := 0 TO LEN(x) - 1 DO z[i] := x[i] END;
FOR i := 0 TO LEN(y) - 1 DO z[i + LEN(x)] := y[i] END
END Concat;
PROCEDURE Concat2(x: ARRAY OF INTEGER;y: ARRAY OF INTEGER): POINTER TO ARRAY OF INTEGER;
VAR
z: POINTER TO ARRAY OF INTEGER;
i: INTEGER;
BEGIN
NEW(z,LEN(x) + LEN(y));
FOR i := 0 TO LEN(x) - 1 DO z[i] := x[i] END;
FOR i := 0 TO LEN(y) - 1 DO z[i + LEN(x)] := y[i] END;
RETURN z;
END Concat2;
PROCEDURE ShowArray(x: ARRAY OF INTEGER);
VAR
i: INTEGER;
BEGIN
i := 0;
StdLog.Char('[');
WHILE (i < LEN(x)) DO
StdLog.Int(x[i]);IF i < LEN(x) - 1 THEN StdLog.Char(',') END;
INC(i)
END;
StdLog.Char(']');StdLog.Ln;
END ShowArray;
PROCEDURE Do*;
VAR
x: ARRAY 10 OF INTEGER;
y: ARRAY 15 OF INTEGER;
z: ARRAY 25 OF INTEGER;
w: POINTER TO ARRAY OF INTEGER;
i: INTEGER;
BEGIN
FOR i := 0 TO LEN(x) - 1 DO x[i] := i END;
FOR i := 0 TO LEN(y) - 1 DO y[i] := i END;
Concat(x,y,z);StdLog.String("1> ");ShowArray(z);
NEW(w,LEN(x) + LEN(y));
Concat(x,y,z);StdLog.String("2:> ");ShowArray(z);
StdLog.String("3:> ");ShowArray(Concat2(x,y));
END Do;
END ArrayConcat.