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-- C341A02.A

 --

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--     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.

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--     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

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--     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;