| -- 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; |
| |