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+-- C74210A.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 OPERATOR SYMBOLS OVERLOADED IN A PACKAGE ARE
+--   USED AND DERIVED IN PREFERENCE TO THOSE OF THE PARENT OF A DERIVED
+--   PRIVATE TYPE. 
+
+-- CHECK THAT OPERATOR DEFINITIONS FOR A PRIVATE TYPE MAY BE
+--   OVERLOADED OUTSIDE THE PACKAGE.
+
+-- CHECK THAT EQUALITY CAN BE DEFINED FOR LIMITED TYPES AND COMPOSITE
+--   TYPES WITH LIMITED COMPONENTS. 
+
+-- DAT 5/11/81
+
+WITH REPORT; USE REPORT;
+
+PROCEDURE C74210A IS
+BEGIN
+     TEST ("C74210A", "OVERLOADED OPERATORS FOR PRIVATE TYPES");
+
+     DECLARE
+          PACKAGE P IS
+               TYPE T IS PRIVATE;
+               FUNCTION "+" (X, Y : T) RETURN T;
+               ONE, TWO : CONSTANT T;
+
+               TYPE L IS LIMITED PRIVATE;
+               TYPE A IS ARRAY (0 .. 0) OF L;
+               TYPE R IS RECORD
+                    C : L;
+               END RECORD;
+               FUNCTION "=" (X, Y : L) RETURN BOOLEAN;
+          PRIVATE
+               TYPE T IS NEW INTEGER;
+               ONE : CONSTANT T := T(IDENT_INT(1));
+               TWO : CONSTANT T := T(IDENT_INT(2));
+               TYPE L IS (ENUM);
+          END P;
+          USE P;
+
+          VR : R;
+          VA : A;
+
+          PACKAGE BODY P IS
+               FUNCTION "+" (X, Y : T) RETURN T IS
+               BEGIN
+                    RETURN 1;
+               END "+";
+
+               FUNCTION "=" (X, Y : L) RETURN BOOLEAN IS
+               BEGIN
+                    RETURN IDENT_BOOL(FALSE);
+               END "=";
+          BEGIN
+               VR := (C => ENUM);
+               VA := (0 => VR.C);
+          END P;
+     BEGIN
+          IF ONE + TWO /= ONE THEN
+               FAILED ("WRONG ""+"" OPERATOR");
+          END IF;
+
+          DECLARE
+               TYPE NEW_T IS NEW T;
+
+               FUNCTION "=" (X, Y : A) RETURN BOOLEAN;
+               FUNCTION "=" (X, Y : R) RETURN BOOLEAN;
+
+               FUNCTION "+" (X, Y : T) RETURN T IS
+               BEGIN
+                    RETURN TWO;
+               END "+";
+
+               FUNCTION "=" (X, Y : A) RETURN BOOLEAN IS
+               BEGIN
+                    RETURN X(0) = Y(0);
+               END "=";
+
+               FUNCTION "=" (X, Y : R) RETURN BOOLEAN IS
+               BEGIN
+                    RETURN X.C = Y.C;
+               END "=";
+          BEGIN
+               IF ONE + TWO /= TWO THEN
+                    FAILED ("WRONG DERIVED ""+"" OPERATOR");
+               END IF;
+
+               IF VR = VR OR VA = VA THEN
+                    FAILED ("CANNOT OVERLOAD ""="" CORRECTLY");
+               END IF;
+          END;
+     END;
+
+     RESULT;
+END C74210A;