WITH REPORT; USE REPORT;
PROCEDURE C35503G IS
BEGIN
TEST ("C35503G", "CHECK THAT 'PRED' AND 'SUCC' YIELD THE " &
"CORRECT RESULT WHEN THE PREFIX IS AN " &
"INTEGER TYPE" );
DECLARE
TYPE INT IS RANGE -6 .. 6;
SUBTYPE SINT IS INT RANGE -4 .. 4;
BEGIN
FOR I IN INT'FIRST + 1 .. INT'LAST LOOP
BEGIN
IF SINT'PRED (I) /= I - 1 THEN
FAILED ( "WRONG SINT'PRED FOR " &
INT'IMAGE (I));
END IF;
EXCEPTION
WHEN OTHERS =>
FAILED ( "EXCEPTION RAISED FOR " &
"SINT'PRED OF " &
INT'IMAGE (I));
END;
END LOOP;
FOR I IN INT'FIRST .. INT'LAST - 1 LOOP
BEGIN
IF SINT'SUCC (I) /= I + 1 THEN
FAILED ( "WRONG SINT'SUCC FOR " &
INT'IMAGE (I));
END IF;
EXCEPTION
WHEN OTHERS =>
FAILED ( "EXCEPTION RAISED FOR " &
"SINT'SUCC OF " &
INT'IMAGE (I));
END;
END LOOP;
END;
DECLARE
SUBTYPE INTRANGE IS INTEGER RANGE IDENT_INT(-6) ..
IDENT_INT(6);
SUBTYPE SINTEGER IS INTEGER RANGE IDENT_INT(-4) ..
IDENT_INT(4);
BEGIN
FOR I IN INTRANGE LOOP
BEGIN
IF SINTEGER'PRED (I) /= I - IDENT_INT(1) THEN
FAILED ( "WRONG SINTEGER'PRED FOR " &
INTEGER'IMAGE (I));
END IF;
EXCEPTION
WHEN OTHERS =>
FAILED ( "EXCEPTION RAISED FOR " &
"SINTEGER'PRED OF " &
INTEGER'IMAGE (I));
END;
BEGIN
IF SINTEGER'SUCC (I) /= I + IDENT_INT(1) THEN
FAILED ( "WRONG SINTEGER'SUCC FOR " &
INTEGER'IMAGE (I));
END IF;
EXCEPTION
WHEN OTHERS =>
FAILED ( "EXCEPTION RAISED FOR " &
"SINTEGER'SUCC OF " &
INTEGER'IMAGE (I));
END;
END LOOP;
END;
RESULT;
END C35503G;