-- C341A04.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 initialized using allocation. -- -- TEST DESCRIPTION: -- Declare access types that refer to class-wide types, one with basis -- of the root type, another with basis of a type extended from the root. -- Declare objects of these access types, and allocate class-wide -- objects, initialized to values of specific types within the particular -- classes. -- -- 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: -- -- => C341A04.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 C341A04 is package Bank renames F341A00_0; package Checking renames F341A00_1; package Interest_Checking renames F341A00_2; use type Bank.Dollar_Amount; Max_Accts : constant := 3; Bank_Balance : Bank.Dollar_Amount := 0.00; -- Define access types referring to class of types rooted at -- Bank.Account (root). type Bank_Account_Pointer is access Bank.Account'Class; -- -- Define class-wide objects, initializing them through allocation. -- -- Initialized to specific type that is basis of class. Bank_Acct : Bank_Account_Pointer := new Bank.Account'(Current_Balance => 10.00); -- Initialized to specific type that has been extended from the basis -- of the class. Checking_Acct : Bank_Account_Pointer := new Checking.Account'(Current_Balance => 100.00, Overdraft_Fee => 10.00); -- Initialized to specific type that has been twice extended from the -- basis of the class. IC_Acct : Bank_Account_Pointer := new Interest_Checking.Account'(Current_Balance => 1000.00, Overdraft_Fee => 10.00, Rate => 0.030); -- Declare and initialize array of pointers to objects of -- Bank.Account'Class. Accounts : array (1 .. Max_Accts) of Bank_Account_Pointer := (Bank_Acct, Checking_Acct, IC_Acct); -- Audit will process any account object within Bank.Account'Class. function Audit (Ptr : Bank_Account_Pointer) return Bank.Dollar_Amount is begin return (Ptr.Current_Balance); end Audit; begin -- C341A04 Report.Test ("C341A04", "Check that class-wide objects were " & "successfully initialized using allocation" ); for i in 1 .. Max_Accts loop Bank_Balance := Bank_Balance + Audit (Accounts(i)); end loop; if Bank_Balance /= 1110.00 then Report.Failed ("Failed class-wide object allocation"); end if; Report.Result; end C341A04;