| -- C67005B.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 IF EQUALITY IS REDEFINED FOR A SCALAR TYPE, CASE |
| -- STATEMENTS STILL USE THE PREDEFINED EQUALITY OPERATION. |
| |
| -- JBG 9/28/83 |
| |
| WITH REPORT; USE REPORT; |
| PROCEDURE C67005B IS |
| |
| GENERIC |
| TYPE LP IS LIMITED PRIVATE; |
| WITH FUNCTION EQUAL (L, R : LP) RETURN BOOLEAN; |
| PACKAGE EQUALITY_OPERATOR IS |
| FUNCTION "=" (L, R : LP) RETURN BOOLEAN; |
| END EQUALITY_OPERATOR; |
| |
| PACKAGE BODY EQUALITY_OPERATOR IS |
| FUNCTION "=" (L, R : LP) RETURN BOOLEAN IS |
| BEGIN |
| RETURN EQUAL(L, R); |
| END "="; |
| END EQUALITY_OPERATOR; |
| |
| BEGIN |
| TEST ("C67005B", "CHECK THAT REDEFINING EQUALITY FOR A " & |
| "SCALAR TYPE DOES NOT AFFECT CASE STATEMENTS"); |
| |
| DECLARE |
| TYPE MY IS NEW INTEGER; |
| CHECK : MY; |
| |
| VAR : INTEGER RANGE 1..3 := 3; |
| |
| PACKAGE INTEGER_EQUALS IS |
| FUNCTION EQUAL (L, R : INTEGER) RETURN BOOLEAN; |
| PACKAGE INTEGER_EQUAL IS NEW EQUALITY_OPERATOR |
| (INTEGER, EQUAL); |
| END INTEGER_EQUALS; |
| |
| FUNCTION "=" (L, R : INTEGER) RETURN BOOLEAN RENAMES |
| INTEGER_EQUALS.INTEGER_EQUAL."="; |
| |
| PACKAGE BODY INTEGER_EQUALS IS |
| FUNCTION EQUAL (L, R : INTEGER) RETURN BOOLEAN IS |
| BEGIN |
| RETURN FALSE; |
| END EQUAL; |
| END INTEGER_EQUALS; |
| |
| BEGIN |
| |
| IF VAR = 3 THEN |
| FAILED ("DID NOT USE REDEFINED '=' - 1"); |
| END IF; |
| |
| IF VAR /= 3 THEN |
| NULL; |
| ELSE |
| FAILED ("DID NOT USE REDEFINED '/=' - 1"); |
| END IF; |
| |
| IF VAR = IDENT_INT(3) THEN |
| FAILED ("DID NOT USE REDEFINED '=' - 2"); |
| END IF; |
| |
| IF VAR /= IDENT_INT(3) THEN |
| NULL; |
| ELSE |
| FAILED ("DID NOT USE REDEFINED '/=' - 2"); |
| END IF; |
| |
| CHECK := MY(IDENT_INT(0)); |
| IF CHECK /= 0 THEN |
| FAILED ("USING WRONG EQUALITY FOR DERIVED TYPE"); |
| END IF; |
| |
| CASE VAR IS |
| WHEN 1..3 => CHECK := MY(IDENT_INT(1)); |
| WHEN OTHERS => NULL; |
| END CASE; |
| |
| IF CHECK /= 1 THEN |
| FAILED ("DID NOT USE PREDEFINED EQUALS IN CASE - 1"); |
| END IF; |
| |
| CASE IDENT_INT(VAR) IS |
| WHEN 1 => CHECK := 4; |
| WHEN 2 => CHECK := 5; |
| WHEN 3 => CHECK := 6; |
| WHEN OTHERS => CHECK := 7; |
| END CASE; |
| |
| IF CHECK /= 6 THEN |
| FAILED ("DID NOT USE PREDEFINED EQUALS IN CASE - 2"); |
| END IF; |
| |
| END; |
| |
| RESULT; |
| |
| END C67005B; |