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-- C95089A.ADA
 
--                             Grant of Unlimited Rights
--
--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
--     unlimited rights in the software and documentation contained herein.
--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
--     this public release, the Government intends to confer upon all 
--     recipients unlimited rights  equal to those held by the Government.  
--     These rights include rights to use, duplicate, release or disclose the 
--     released technical data and computer software in whole or in part, in 
--     any manner and for any purpose whatsoever, and to have or permit others 
--     to do so.
--
--                                    DISCLAIMER
--
--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
--     PARTICULAR PURPOSE OF SAID MATERIAL.
--*
-- CHECK THAT ALL PERMITTED FORMS OF VARIABLE NAMES ARE PERMITTED
-- AS ACTUAL PARAMETERS.
 
-- GLH 7/25/85
 
WITH REPORT; USE REPORT;
PROCEDURE C95089A IS
 
     SUBTYPE INT IS INTEGER RANGE 1..3;
 
     TYPE REC (N : INT) IS
          RECORD
               S : STRING (1..N);
          END RECORD;
 
     TYPE PTRSTR IS ACCESS STRING;
 
     R1, R2, R3 : REC (3);
     S1, S2, S3 : STRING (1..3);
     PTRTBL     : ARRAY (1..3) OF PTRSTR;
 
     TASK T1 IS
          ENTRY E1 (S1 : IN STRING; S2: IN OUT STRING;
                    S3 : OUT STRING);
     END T1;
 
     TASK BODY T1 IS
     BEGIN
          LOOP
               SELECT
                    ACCEPT E1 (S1 : IN STRING; S2: IN OUT STRING;
                               S3 : OUT STRING) DO
                         S3 := S2;
                         S2 := S1;
                    END E1;
               OR
                    TERMINATE;
               END SELECT;
          END LOOP;
     END T1;
 
     TASK T2 IS
          ENTRY E2 (C1 : IN CHARACTER; C2 : IN OUT CHARACTER;
                    C3 : OUT CHARACTER);
     END T2;
 
     TASK BODY T2 IS
     BEGIN
          LOOP
               SELECT
                    ACCEPT E2 (C1 : IN CHARACTER; C2 : IN OUT CHARACTER;
                               C3 : OUT CHARACTER) DO
                         C3 := C2;
                         C2 := C1;
                    END E2;
               OR
                    TERMINATE;
               END SELECT;
          END LOOP;
     END T2;
 
     FUNCTION F1 (X : INT) RETURN PTRSTR IS
     BEGIN
          RETURN PTRTBL (X);
     END F1;
 
     FUNCTION "+" (S1, S2 : STRING) RETURN PTRSTR IS
     BEGIN
          RETURN PTRTBL (CHARACTER'POS(S1(1))-CHARACTER'POS('A')+1);
     END "+";
 
BEGIN
 
     TEST ("C95089A", "CHECK THAT ALL PERMITTED FORMS OF VARIABLE " &
                      "NAMES ARE PERMITTED AS ACTUAL PARAMETERS");
 
     S1 := "AAA";
     S2 := "BBB";
     T1.E1 (S1, S2, S3);
     IF S2 /= "AAA" OR S3 /= "BBB" THEN
          FAILED ("SIMPLE VARIABLE AS AN ACTUAL PARAMETER NOT WORKING");
     END IF;
 
     S1 := "AAA";
     S2 := "BBB";
     S3 := IDENT_STR ("CCC");
     T2.E2 (S1(1), S2(IDENT_INT(1)), S3(1));
     IF S2 /= "ABB" OR S3 /= "BCC" THEN
          FAILED ("INDEXED COMPONENT AS AN ACTUAL PARAMETER NOT " &
                  "WORKING");
     END IF;
 
     R1.S := "AAA";
     R2.S := "BBB";
     T1.E1 (R1.S, R2.S, R3.S);
     IF R2.S /= "AAA" OR R3.S /= "BBB" THEN
          FAILED ("SELECTED COMPONENT AS AN ACTUAL PARAMETER " &
                  "NOT WORKING");
     END IF;
 
     S1 := "AAA";
     S2 := "BBB";
     T1.E1 (S1(1..IDENT_INT(2)), S2(1..2),
            S3(IDENT_INT(1)..IDENT_INT(2)));
     IF S2 /= "AAB" OR S3 /= "BBC" THEN
          FAILED ("SLICE AS AN ACTUAL PARAMETER NOT WORKING");
     END IF;
 
     PTRTBL(1) := NEW STRING'("AAA");
     PTRTBL(2) := NEW STRING'("BBB");
     PTRTBL(3) := NEW STRING'("CCC");
     T1.E1 (F1(1).ALL, F1(2).ALL, F1(IDENT_INT(3)).ALL);
     IF PTRTBL(2).ALL /= "AAA" OR PTRTBL(3).ALL /= "BBB" THEN
          FAILED ("SELECTED COMPONENT OF FUNCTION VALUE AS AN ACTUAL " &
                  "PARAMETER NOT WORKING");
     END IF;
 
     PTRTBL(1) := NEW STRING'("AAA");
     PTRTBL(2) := NEW STRING'("BBB");
     PTRTBL(3) := NEW STRING'("CCC");
     S1 := IDENT_STR("AAA");
     S2 := IDENT_STR("BBB");
     S3 := IDENT_STR("CCC");
     T1.E1 ("+"(S1,S1).ALL, "+"(S2,S2).ALL, "+"(S3,S3).ALL);
     IF PTRTBL(2).ALL /= "AAA" OR PTRTBL(3).ALL /= "BBB" THEN
          FAILED ("SELECTED COMPONENT OF OVERLOADED OPERATOR " &
                  "FUNCTION VALUE AS AN ACTUAL PARAMETER NOT WORKING");
     END IF;
 
     PTRTBL(1) := NEW STRING'("AAA");
     PTRTBL(2) := NEW STRING'("BBB");
     PTRTBL(3) := NEW STRING'("CCC");
     T2.E2 (F1(1)(1), F1(IDENT_INT(2))(1), F1(3)(IDENT_INT(1)));
     IF PTRTBL(2).ALL /= "ABB" OR PTRTBL(3).ALL /= "BCC" THEN
          FAILED ("INDEXED COMPONENT OF FUNCTION VALUE AS AN ACTUAL " &
                  "PARAMETER NOT WORKING");
     END IF;
 
     PTRTBL(1) := NEW STRING'("AAA");
     PTRTBL(2) := NEW STRING'("BBB");
     PTRTBL(3) := NEW STRING'("CCC");
     T1.E1 (F1(1)(2..3), F1(2)(IDENT_INT(2)..3),
            F1(3)(2..IDENT_INT(3)));
     IF PTRTBL(2).ALL /= "BAA" OR PTRTBL(3).ALL /= "CBB" THEN
          FAILED ("SLICE OF FUNCTION VALUE AS AN ACTUAL PARAMETER " &
                  "NOT WORKING");
     END IF;
 
     RESULT;
 
END C95089A;