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-- C37208B.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.
--*
-- FOR A TYPE WITH DEFAULT DISCRIMINANT VALUES, CHECK THAT A
-- DISCRIMINANT CONSTRAINT CAN BE OMITTED IN A GENERIC FORMAL
-- PARAMETER, AND HENCE, FOR BOTH IN AND IN OUT PARAMETERS, THE
-- 'CONSTRAINED ATTRIBUTE OF THE ACTUAL PARAMETER BECOMES THE
-- 'CONSTRAINED ATTRIBUTE OF THE FORMAL PARAMETER, AND, FOR IN
-- OUT PARAMETERS, IF THE 'CONSTRAINED ATTRIBUTE IS FALSE,
-- ASSIGNMENTS TO THE FORMAL PARAMETERS CAN CHANGE THE
-- DISCRIMINANTS OF THE ACTUAL PARAMETER; IF THE 'CONSTRAINED
-- ATTRIBUTE IS TRUE, ASSIGNMENTS THAT ATTEMPT TO CHANGE THE
-- DISCRIMINANTS OF THE ACTUAL PARAMETER RAISE CONSTRAINT_ERROR.
-- ASL 7/29/81
-- VKG 1/20/83
-- EDS 7/16/98 AVOID OPTIMIZATION
WITH REPORT;
PROCEDURE C37208B IS
USE REPORT;
BEGIN
TEST ("C37208B","FOR TYPES WITH DEFAULT DISCRIMINANT " &
"VALUES, DISCRIMINANT CONSTRAINTS CAN BE OMITTED " &
"IN GENERIC FORMAL PARAMETERS, AND THE " &
"'CONSTRAINED ATTRIBUTE HAS CORRECT VALUES " &
"DEPENDING ON THE ACTUAL PARAMETERS");
DECLARE
TYPE REC(DISC : INTEGER := 7) IS
RECORD
NULL;
END RECORD;
KC : CONSTANT REC(3) := (DISC => 3);
KU : CONSTANT REC := (DISC => 3);
OBJC1,OBJC2 : REC(3) := (DISC => 3);
OBJU1,OBJU2 : REC := (DISC => 3);
GENERIC
P_IN1 : REC;
P_IN2 : REC;
P_IN_OUT : IN OUT REC;
STATUS : BOOLEAN;
PROCEDURE PROC;
PROCEDURE PROC IS
BEGIN
IF P_IN1'CONSTRAINED /= TRUE OR
P_IN2'CONSTRAINED /= TRUE OR
P_IN_OUT'CONSTRAINED /= STATUS
THEN
FAILED ("'CONSTRAINED ATTRIBUTES DO NOT MATCH " &
"FOR ACTUAL AND FORMAL PARAMETERS");
END IF;
IF NOT STATUS THEN
BEGIN
P_IN_OUT := (DISC => IDENT_INT(7));
EXCEPTION
WHEN OTHERS =>
FAILED ("EXCEPTION RAISED " &
"WHEN TRYING TO " &
"CHANGE UNCONSTRAINED " &
"DISCRIMINANT VALUE");
END;
ELSE
BEGIN
P_IN_OUT := (DISC => IDENT_INT(7));
FAILED ("DISCRIMINANT OF CONSTRAINED " &
"ACTUAL PARAMETER ILLEGALLY " &
"CHANGED BY ASSIGNMENT");
EXCEPTION
WHEN CONSTRAINT_ERROR => NULL;
WHEN OTHERS => FAILED ("WRONG EXCEPTION");
END;
END IF;
END PROC;
BEGIN
DECLARE
PROCEDURE PROC_C IS NEW PROC(KC,OBJC1,OBJC2,IDENT_BOOL(TRUE));
PROCEDURE PROC_U IS NEW PROC(KU,OBJU1,OBJU2,IDENT_BOOL(FALSE));
BEGIN
PROC_C;
PROC_U;
IF OBJU2.DISC /= 7 THEN
FAILED ("ASSIGNMENT TO UNCONSTRAINED ACTUAL " &
"PARAMETER FAILED TO CHANGE DISCRIMINANT ");
END IF;
END;
END;
RESULT;
END C37208B;
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