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ONEND2.ALG
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1999-03-13
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896b
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39 lines
BEGIN
COMMENT THIS PROGRAM DEMONSTRATES THE FUNCTIONING OF THE
ALGOL-M ONENDFILE FEATURE USING TWO INPUT FILES;
% VARIABLE DECLARATIONS %
FILE FILE1,FILE2;
INTEGER A,I,J;
INTEGER ARRAY NUM[0:50];
STRING(5) FILEEND;
PROCEDURE ENDFILE(FILENUMBER);
INTEGER FILENUMBER;
BEGIN
FILEEND:="TRUE";
CASE FILENUMBER-1 OF
BEGIN
WRITE("END OF FILE1 REACHED");
WRITE("END OF FILE2 REACHED");
END;
END;
% PROGRAM EXECUTION BEGINS HERE %
% OPEN FILES %
FILE1:="FILE1.INP";
FILE2:="FILE2.INP";
I:=-1;
FILEEND:="FALSE";
WHILE FILEEND<>"TRUE" DO
READ FILE1(NUM[(I:=I+1)]) ONENDFILE ENDFILE(1);
FILEEND:="FALSE";
I:=I-1;%RESET I%
WHILE FILEEND<>"TRUE" DO
READ FILE2(NUM[(I:=I+1)]) ONENDFILE ENDFILE(2);
FOR J:=0 STEP 1 UNTIL I-1 DO
WRITE(NUM[J]);
END