27 lines
589 B
Plaintext
27 lines
589 B
Plaintext
MODULE BbtReverseString;
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IMPORT StdLog;
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PROCEDURE ReverseStr(str: ARRAY OF CHAR): POINTER TO ARRAY OF CHAR;
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VAR
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top,middle,i: INTEGER;
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c: CHAR;
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rStr: POINTER TO ARRAY OF CHAR;
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BEGIN
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NEW(rStr,LEN(str$) + 1);
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top := LEN(str$) - 1; middle := (top - 1) DIV 2;
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FOR i := 0 TO middle DO
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rStr[i] := str[top - i];
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rStr[top - i] := str[i];
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END;
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IF ODD(LEN(str$)) THEN rStr[middle + 1] := str[middle + 1] END;
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RETURN rStr;
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END ReverseStr;
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PROCEDURE Do*;
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VAR
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x: CHAR;
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BEGIN
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StdLog.String("'asdf' reversed:> ");StdLog.String(ReverseStr("asdf"));StdLog.Ln
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END Do;
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END BbtReverseString.
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