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-- C45242B.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.

--*

-- OBJECTIVE:

--     CHECK THAT NO EXCEPTION IS RAISED WHEN A FLOATING POINT LITERAL

--     OPERAND IN A COMPARISON OR A FLOATING POINT LITERAL LEFT OPERAND

--     IN A MEMBERSHIP TEST BELONGS TO THE BASE TYPE BUT IS OUTSIDE

--     THE RANGE OF THE SUBTYPE.

-- *** NOTE: This test has been modified since ACVC version 1.11 to    -- 9X

-- ***       remove incompatibilities associated with the transition   -- 9X

-- ***       to Ada 9X.                                                -- 9X

-- HISTORY:

--     PWB 09/04/86 CREATED ORIGINAL TEST.

--     DHH 10/19/87 SHORTENED LINES CONTAINING MORE THAN 72 CHARACTERS.

--     JRL 03/30/93 REMOVED NUMERIC_ERROR FROM TEST.

WITH REPORT, SYSTEM; USE REPORT;

PROCEDURE C45242B IS

BEGIN

     TEST ("C45242B", "NO EXCEPTION IS RAISED WHEN A FLOATING " &

                      "LITERAL USED IN A COMPARISON OR AS THE " &

                      "LEFT OPERAND IN A MEMBERSHIP TEST " &

                      "BELONGS TO THE BASE TYPE BUT IS OUTSIDE " &

                      "THE RANGE OF THE SUBTYPE");

     DECLARE

          N : FLOAT := FLOAT (IDENT_INT (1));

          SUBTYPE FLOAT_1 IS FLOAT RANGE -1.0 .. N;

          NUM : FLOAT_1 := N;

     BEGIN    -- PRE-DEFINED FLOAT COMPARISON

          IF EQUAL(3,3) THEN

               NUM := FLOAT_1'(0.5);

          END IF;

          IF 2.0 > NUM THEN

               COMMENT ("NO EXCEPTION RAISED FOR PRE-DEFINED FLOAT " &

                        "COMPARISON");

          ELSE

               FAILED ("WRONG RESULT FROM PRE-DEFINED FLOAT " &

                       "COMPARISON");

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               FAILED ("CONSTRAINT_ERROR RAISED FOR PRE-DEFINED " &

                       "FLOAT COMPARISON");

          WHEN OTHERS =>

               FAILED ("OTHER EXCEPTION RAISED FOR PRE-DEFINED " &

                       "FLOAT COMPARISON");

     END;  -- PRE-DEFINED FLOAT COMPARISON

     DECLARE

          N : FLOAT := FLOAT (IDENT_INT (1));

          SUBTYPE FLOAT_1 IS FLOAT RANGE -1.0 .. N;

     BEGIN    -- PRE-DEFINED FLOAT MEMBERSHIP

          IF 2.0 IN FLOAT_1 THEN

               FAILED ("WRONG RESULT FROM PRE-DEFINED FLOAT " &

                       "MEMBERSHIP");

          ELSE

               COMMENT ("NO EXCEPTION RAISED FOR PRE-DEFINED FLOAT " &

                        "MEMBERSHIP");

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               FAILED ("CONSTRAINT_ERROR RAISED FOR PRE-DEFINED " &

                       "FLOAT MEMBERSHIP");

          WHEN OTHERS =>

               FAILED ("OTHER EXCEPTION RAISED FOR PRE-DEFINED " &

                       "FLOAT MEMBERSHIP");

     END;  -- PRE-DEFINED FLOAT MEMBERSHIP

     DECLARE -- PRECISE FLOAT COMPARISON

          TYPE FINE_FLOAT IS DIGITS SYSTEM.MAX_DIGITS;

          N : FINE_FLOAT := 0.5 * FINE_FLOAT (IDENT_INT (1));

          SUBTYPE SUB_FINE IS FINE_FLOAT RANGE -0.5 .. N;

          NUM : SUB_FINE := N;

     BEGIN

          IF EQUAL(3,3) THEN

               NUM := 0.25;

          END IF;

          IF 0.75 > NUM THEN

               COMMENT ("NO EXCEPTION RAISED FOR FINE_FLOAT " &

                        "COMPARISON");

          ELSE

               FAILED ("WRONG RESULT FROM FINE_FLOAT COMPARISON");

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               FAILED ("CONSTRAINT_ERROR RAISED FOR " &

                       "FINE_FLOAT COMPARISON");

          WHEN OTHERS =>

               FAILED ("OTHER EXCEPTION RAISED FOR  " &

                       "FINE_FLOAT COMPARISON");

     END;  --  FINE_FLOAT COMPARISON

     DECLARE -- PRECISE FLOAT MEMBERSHIP

          TYPE FINE_FLOAT IS DIGITS SYSTEM.MAX_DIGITS;

          N : FINE_FLOAT := 0.5 * FINE_FLOAT (IDENT_INT (1));

          SUBTYPE SUB_FINE IS FINE_FLOAT RANGE -0.5 .. N;

     BEGIN

          IF 0.75 IN SUB_FINE THEN

               FAILED ("WRONG RESULT FROM FINE_FLOAT MEMBERSHIP");

          ELSE

               COMMENT ("NO EXCEPTION RAISED FOR FINE_FLOAT " &

                        "MEMBERSHIP");

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               FAILED ("CONSTRAINT_ERROR RAISED FOR " &

                       "FINE_FLOAT MEMBERSHIP");

          WHEN OTHERS =>

               FAILED ("OTHER EXCEPTION RAISED FOR  " &

                       "FINE_FLOAT MEMBERSHIP");

     END;  --  FINE_FLOAT MEMBERSHIP

     RESULT;

END C45242B;