Subversion Repositories openrisc_2011-10-31

-- C341A04.A

 --

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--*

 --

 -- 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;