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--- C341A02.A
- --
--- 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 class-wide objects can be reassigned with objects from
- -- the same specific type used to initialize them.
- --
- -- TEST DESCRIPTION:
- -- Define new objects of specific types from within a class. Reassign
- -- previously declared class-wide objects with the new specific type
- -- objects. Check that new assignments were performed.
- --
- -- The particular root and extended types used in this abstraction are
- -- defined in foundation code (F341A00.A), and are graphically displayed
- -- as follows:
- --
- -- package Bank
- -- type Account
- -- |
- -- |
- -- |
- -- package Checking
- -- type Account
- -- |
- -- |
- -- |
- -- package Interest_Checking
- -- type Account
- --
- -- TEST FILES:
- -- This test depends on the following foundation code:
- --
- -- F341A00.A
- --
- -- The following files comprise this test:
- --
- -- => C341A02.A
- --
- --
--- CHANGE HISTORY:
--- 06 Dec 94 SAIC ACVC 2.0
---
- --!
-
- with F341A00_0; -- package Bank
- with F341A00_1; -- package Checking
- with F341A00_2; -- package Interest_Checking
- with Report;
-
- procedure C341A02 is
-
- package Bank renames F341A00_0;
- package Checking renames F341A00_1;
- package Interest_Checking renames F341A00_2;
-
- Max_Accts : constant := 3;
- Bank_Balance : Bank.Dollar_Amount := 0.00;
-
- -- Define and initialize objects of specific types.
- B_Acct : aliased Bank.Account := (Current_Balance => 10.00);
- C_Acct : aliased Checking.Account := (100.00, 10.00);
- IC_Acct : aliased Interest_Checking.Account := (1000.00, 10.00, 0.030);
- New_B_Acct : aliased Bank.Account := (Current_Balance => 20.00);
- New_C_Acct : aliased Checking.Account := (200.00, 20.00);
- New_IC_Acct : aliased Interest_Checking.Account := (2000.00, 20.00, 0.060);
-
-
- -- Define and initialize (by direct assignment) objects of a class-wide
- -- type originating from the root type (Bank.Account).
-
- type ATM_Card is access all Bank.Account'Class;
-
- Accounts : array (1 .. Max_Accts) of ATM_Card :=
- (1 => B_Acct'Access, 2 => C_Acct'Access, 3 => IC_Acct'Access);
-
- New_Accounts : array (1 .. Max_Accts) of ATM_Card :=
- (1 => New_B_Acct'Access,
- 2 => New_C_Acct'Access,
- 3 => New_IC_Acct'Access);
-
- -- Define an account auditing procedure with a class-wide
- -- variable that can hold a value of any object within the class,
- -- and once initialized, can hold other values of the same specific type.
-
- procedure Audit (Num : in integer;
- Amt : out Bank.Dollar_Amount) is
- Account_Being_Audited : Bank.Account'Class := Accounts(Num).all;
- use type Bank.Dollar_Amount;
- begin
- Amt := Account_Being_Audited.Current_Balance;
- -- Reassign class-wide variable to another object of the type used to
- -- initialize it.
- Account_Being_Audited := New_Accounts(Num).all;
- Amt := Amt + Account_Being_Audited.Current_Balance; -- Reading OUT
- end Audit; -- parameter.
-
-
- begin
-
- Report.Test ("C341A02", "Check that class-wide objects can be " &
- "reassigned with objects from the same " &
- "specific type used to initialize them" );
- Night_Audit:
- declare
- use type Bank.Dollar_Amount;
- Acct_Value : Bank.Dollar_Amount := 0.00;
- begin
- -- Perform nightly audit of total funds on deposit in bank.
- for i in 1 .. Max_Accts loop
- Audit (i, Acct_Value);
- Bank_Balance := Bank_Balance + Acct_Value;
- end loop;
-
- if Bank_Balance /= 3330.00 then
- Report.Failed ("Class-wide object processing failed");
- end if;
-
- end Night_Audit;
-
- Report.Result;
-
- end C341A02;
-