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+-- C45303A.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 ADDITION AND SUBTRACTION YIELD RESULTS BELONGING TO THE
+-- BASE TYPE.
+
+-- JBG 2/24/84
+-- JRL 03/30/93 REMOVED NUMERIC_ERROR FROM TEST.
+-- JRL 10/13/96 Fixed static expressions which contained values outside
+--              the base range.
+
+WITH REPORT; USE REPORT;
+PROCEDURE C45303A IS
+
+     TYPE INT IS RANGE 1..10;
+
+     X, Y : INT := INT(IDENT_INT(9));
+
+BEGIN
+
+     TEST ("C45303A", "CHECK SUBTYPE OF INTEGER ADDITION/SUBTRACTION");
+
+     BEGIN
+
+          IF X + Y - 10 /= INT(IDENT_INT(8)) THEN
+               FAILED ("INCORRECT RESULT - ADDITION");
+          END IF;
+
+     EXCEPTION
+
+          WHEN CONSTRAINT_ERROR =>
+               IF INT'POS(INT'BASE'LAST) >= 18 THEN
+                    FAILED ("ADDITION DOES NOT YIELD RESULT " &
+                            "BELONGING TO THE BASE TYPE");
+               ELSE
+                    COMMENT ("BASE TYPE HAS RANGE LESS THAN 18 - ADD");
+               END IF;
+     END;
+
+     BEGIN
+
+          IF 2 - X - INT(IDENT_INT(1)) /= INT'VAL(IDENT_INT(-8)) THEN
+               FAILED ("INCORRECT RESULT - SUBTRACTION");
+          END IF;
+
+     EXCEPTION
+
+          WHEN CONSTRAINT_ERROR =>
+               IF INT'POS(INT'BASE'FIRST) <= -8 THEN
+                    FAILED ("SUBTRACTION DOES NOT YIELD RESULT " &
+                            "BELONGING TO THE BASE TYPE");
+               ELSE
+                    COMMENT ("BASE TYPE HAS RANGE GREATER THAN -8 - SUB");
+               END IF;
+     END;
+
+     RESULT;
+
+END C45303A;