WITH REPORT; USE REPORT;
PROCEDURE C64005B IS
COUNT : INTEGER := 0;
TWENTY : CONSTANT INTEGER := 20;
C1 : CONSTANT INTEGER := 1;
G1, G2, G3 : INTEGER := 0;
G4, G5 : INTEGER := 0;
PROCEDURE R (A1 : INTEGER; A2 : IN OUT INTEGER; A3 : OUT INTEGER)
IS
C1 : CONSTANT INTEGER := 5;
TEN : CONSTANT INTEGER := 10;
J1, J2 : INTEGER := 1;
J3 : INTEGER := 0;
PROCEDURE RECURSE (P1 : INTEGER; P2 : IN OUT INTEGER) IS
C1 : INTEGER := 2;
BEGIN C1 := IDENT_INT (10);
IF P1 < TWENTY THEN
RECURSE (P1 + C1, G2);
G1 := G1 + C64005B.C1;
G3 := G3 + P1;
P2 := P2 + IDENT_INT(2);
A2 := A2 + IDENT_INT(1);
J2 := J2 + R.C1;
END IF;
END RECURSE;
BEGIN IF A2 < TEN THEN
A2 := A2 + C1;
RECURSE (0, J1);
J3 := J3 + TEN;
COUNT := COUNT + 1;
COMMENT ("ON PASS # " & INTEGER'IMAGE(COUNT));
COMMENT ("VALUE OF A2 IS " & INTEGER'IMAGE(A2));
COMMENT ("VALUE OF J3 IS " & INTEGER'IMAGE(J3));
R (0, A2, J3);
J3 := J3 + A2;
END IF;
A3 := J1 + J3;
END R;
BEGIN
TEST("C64005B", "RECURSIVE SUBPROGRAMS WITH ALL KINDS " &
"OF DATA ACCESS");
R (0, G4, G5);
IF (COUNT /= 2) OR (G1 /= 4) OR
(G2 /= 4) OR (G3 /= 20) OR
(G4 /= 14) OR (G5 /= 35) THEN
FAILED ("RECURSIVE INVOCATIONS' DATA ACCESS IS NOT" &
" WORKING CORRECTLY");
END IF;
COMMENT ("VALUE OF COUNT IS " & INTEGER'IMAGE(COUNT));
COMMENT ("VALUE OF G1 IS " & INTEGER'IMAGE(G1));
COMMENT ("VALUE OF G2 IS " & INTEGER'IMAGE(G2));
COMMENT ("VALUE OF G3 IS " & INTEGER'IMAGE(G3));
COMMENT ("VALUE OF G4 IS " & INTEGER'IMAGE(G4));
COMMENT ("VALUE OF G5 IS " & INTEGER'IMAGE(G5));
RESULT;
EXCEPTION
WHEN PROGRAM_ERROR =>
FAILED ("PROGRAM_ERROR RAISED");
COMMENT ("VALUE OF COUNT IS " & INTEGER'IMAGE(COUNT));
COMMENT ("VALUE OF G1 IS " & INTEGER'IMAGE(G1));
COMMENT ("VALUE OF G2 IS " & INTEGER'IMAGE(G2));
COMMENT ("VALUE OF G3 IS " & INTEGER'IMAGE(G3));
COMMENT ("VALUE OF G4 IS " & INTEGER'IMAGE(G4));
COMMENT ("VALUE OF G5 IS " & INTEGER'IMAGE(G5));
RESULT;
END C64005B;