| -- C460012.A |
| -- |
| -- Grant of Unlimited Rights |
| -- |
| -- The Ada Conformity Assessment Authority (ACAA) holds unlimited |
| -- rights in the software and documentation contained herein. Unlimited |
| -- rights are the same as those granted by the U.S. Government for older |
| -- parts of the Ada Conformity Assessment Test Suite, and are defined |
| -- in DFAR 252.227-7013(a)(19). By making this public release, the ACAA |
| -- intends to confer upon all recipients unlimited rights equal to those |
| -- held by the ACAA. 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 the view created by a view conversion is constrained if the |
| -- target subtype is indefinite. (Defect Report 8652/0017, Technical |
| -- Corrigendum 4.6(54/1)). |
| -- |
| -- CHANGE HISTORY: |
| -- 25 JAN 2001 PHL Initial version. |
| -- 29 JUN 2001 RLB Reformatted for ACATS. Added optimization blocking. |
| -- 02 JUL 2001 RLB Fixed discriminant reference. |
| -- |
| --! |
| with Ada.Exceptions; |
| use Ada.Exceptions; |
| with Report; |
| use Report; |
| procedure C460012 is |
| |
| subtype Index is Positive range 1 .. 10; |
| |
| type Definite_Parent (D1 : Index := 6) is |
| record |
| F : String (1 .. D1) := (others => 'a'); |
| end record; |
| |
| type Indefinite_Child (D2 : Index) is new Definite_Parent (D1 => D2); |
| |
| Y : Definite_Parent; |
| |
| procedure P (X : in out Indefinite_Child) is |
| C : Character renames X.F (3); |
| begin |
| X := (1, "a"); |
| if C /= 'a' then |
| Failed ("No exception raised when changing the " & |
| "discriminant of a view conversion, value of C changed"); |
| elsif X.D2 /= 1 then |
| Failed ("No exception raised when changing the " & |
| "discriminant of a view conversion, discriminant not " & |
| "changed"); |
| -- This check primarily exists to prevent X from being optimized by |
| -- 11.6 permissions, or the Failed call being made before the assignment. |
| else |
| Failed ("No exception raised when changing the " & |
| "discriminant of a view conversion, discriminant changed"); |
| end if; |
| exception |
| when Constraint_Error => |
| null; |
| when E: others => |
| Failed ("Wrong exception " & Exception_Name (E) & " raised - " & |
| Exception_Message (E)); |
| end P; |
| |
| begin |
| Test ("C460012", |
| "Check that the view created by a view conversion " & |
| "is constrained if the target subtype is indefinite"); |
| |
| P (Indefinite_Child (Y)); |
| |
| if Y.D1 /= Ident_Int(6) then |
| Failed ("Discriminant of indefinite view changed"); |
| -- This check exists mainly to prevent Y from being optimized away. |
| end if; |
| |
| Result; |
| end C460012; |
| |