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+-- C87B18A.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 OVERLOADING RESOLUTION USES THE RULE THAT:
+--
+-- THE TYPES OF THE EXPRESSIONS IN A DISCRIMINANT CONSTRAINT IN
+-- A SUBTYPE INDICATION MUST MATCH THE DISCRIMINANT'S EXPLICIT
+-- TYPEMARK.
+  
+-- TRH  1 JULY 82
+  
+WITH REPORT; USE REPORT;
+   
+PROCEDURE C87B18A IS
+     
+     ERR : BOOLEAN := FALSE;
+ 
+     FUNCTION F1 RETURN INTEGER IS
+     BEGIN 
+          RETURN 1;
+     END F1;
+
+     FUNCTION F1 RETURN FLOAT IS
+     BEGIN 
+          ERR := TRUE;
+          RETURN 0.0;
+     END F1;
+ 
+     FUNCTION F2 RETURN BOOLEAN IS
+     BEGIN
+          RETURN TRUE;
+     END F2;
+
+     FUNCTION F2 RETURN STRING IS
+     BEGIN 
+          ERR := TRUE;
+          RETURN "STRING";
+     END F2;
+  
+BEGIN
+     TEST ("C87B18A","OVERLOADED EXPRESSIONS IN DISCRIMINANT " &
+           "CONSTRAINTS");
+   
+     DECLARE
+          TYPE REC (X : INTEGER := 0; Y : BOOLEAN := TRUE) IS
+               RECORD
+                    NULL;
+               END RECORD;
+ 
+          R1 : REC (F1, F2);
+          R2 : REC (Y => F2, X => F1);
+
+     BEGIN
+          IF ERR THEN 
+               FAILED ("RESOLUTION INCORRECT - DISCRIMINANT " &
+                       "CONSTRAINT MUST MATCH DISCRIMINANT TYPE");
+          END IF;
+     END;
+    
+     RESULT;
+END C87B18A;