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111
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1 -- C341A04.A
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2 --
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3 -- Grant of Unlimited Rights
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4 --
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5 -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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6 -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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7 -- unlimited rights in the software and documentation contained herein.
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8 -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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9 -- this public release, the Government intends to confer upon all
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10 -- recipients unlimited rights equal to those held by the Government.
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11 -- These rights include rights to use, duplicate, release or disclose the
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12 -- released technical data and computer software in whole or in part, in
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13 -- any manner and for any purpose whatsoever, and to have or permit others
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14 -- to do so.
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15 --
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16 -- DISCLAIMER
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17 --
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18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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19 -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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20 -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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21 -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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22 -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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23 -- PARTICULAR PURPOSE OF SAID MATERIAL.
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24 --*
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25 --
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26 -- OBJECTIVE:
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27 -- Check that class-wide objects can be initialized using allocation.
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28 --
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29 -- TEST DESCRIPTION:
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30 -- Declare access types that refer to class-wide types, one with basis
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31 -- of the root type, another with basis of a type extended from the root.
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32 -- Declare objects of these access types, and allocate class-wide
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33 -- objects, initialized to values of specific types within the particular
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34 -- classes.
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35 --
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36 -- The particular root and extended types used in this abstraction are
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37 -- defined in foundation code (F341A00.A), and are graphically displayed
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38 -- as follows:
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39 --
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40 -- package Bank
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41 -- type Account
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42 -- |
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43 -- |
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44 -- |
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45 -- package Checking
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46 -- type Account
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47 -- |
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48 -- |
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49 -- |
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50 -- package Interest_Checking
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51 -- type Account
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52 --
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53 -- TEST FILES:
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54 -- This test depends on the following foundation code:
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55 --
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56 -- F341A00.A
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57 --
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58 -- The following files comprise this test:
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59 --
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60 -- => C341A04.A
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61 --
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62 --
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63 -- CHANGE HISTORY:
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64 -- 06 Dec 94 SAIC ACVC 2.0
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65 --
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66 --!
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67
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68 with F341A00_0; -- package Bank
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69 with F341A00_1; -- package Checking
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70 with F341A00_2; -- package Interest_Checking
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71 with Report;
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72
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73 procedure C341A04 is
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74
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75 package Bank renames F341A00_0;
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76 package Checking renames F341A00_1;
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77 package Interest_Checking renames F341A00_2;
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78
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79 use type Bank.Dollar_Amount;
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80
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81 Max_Accts : constant := 3;
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82 Bank_Balance : Bank.Dollar_Amount := 0.00;
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83
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84 -- Define access types referring to class of types rooted at
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85 -- Bank.Account (root).
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86
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87 type Bank_Account_Pointer is access Bank.Account'Class;
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88
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89 --
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90 -- Define class-wide objects, initializing them through allocation.
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91 --
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92
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93 -- Initialized to specific type that is basis of class.
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94 Bank_Acct : Bank_Account_Pointer :=
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95 new Bank.Account'(Current_Balance => 10.00);
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96
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97 -- Initialized to specific type that has been extended from the basis
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98 -- of the class.
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99 Checking_Acct : Bank_Account_Pointer :=
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100 new Checking.Account'(Current_Balance => 100.00,
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101 Overdraft_Fee => 10.00);
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102
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103 -- Initialized to specific type that has been twice extended from the
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104 -- basis of the class.
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105 IC_Acct : Bank_Account_Pointer :=
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106 new Interest_Checking.Account'(Current_Balance => 1000.00,
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107 Overdraft_Fee => 10.00,
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108 Rate => 0.030);
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109
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110 -- Declare and initialize array of pointers to objects of
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111 -- Bank.Account'Class.
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112
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113 Accounts : array (1 .. Max_Accts) of Bank_Account_Pointer :=
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114 (Bank_Acct, Checking_Acct, IC_Acct);
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115
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116
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117 -- Audit will process any account object within Bank.Account'Class.
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118
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119 function Audit (Ptr : Bank_Account_Pointer) return Bank.Dollar_Amount is
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120 begin
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121 return (Ptr.Current_Balance);
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122 end Audit;
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123
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124
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125 begin -- C341A04
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126
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127 Report.Test ("C341A04", "Check that class-wide objects were " &
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128 "successfully initialized using allocation" );
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129
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130 for i in 1 .. Max_Accts loop
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131 Bank_Balance := Bank_Balance + Audit (Accounts(i));
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132 end loop;
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133
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134 if Bank_Balance /= 1110.00 then
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135 Report.Failed ("Failed class-wide object allocation");
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136 end if;
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137
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138 Report.Result;
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139
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140 end C341A04;
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141
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