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111
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1 -- C393007.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 -- TEST OBJECTIVE:
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27 -- Check that an extended type can be derived from an abstract type,
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28 -- where the abstract type is defined in a package, and the type derived
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29 -- from it is defined in a distinct library package.
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30 --
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31 -- TEST DESCRIPTION:
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32 -- Declare an private (abstract) type; declare two primitive operations
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33 -- of the type that are explicitly abstract.
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34 -- Derive an extended type from the (private) abstract type, overriding
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35 -- both of the primitive operations.
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36 -- This test also checks to see that name overloading between abstract
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37 -- and non-abstract functions is resolved correctly.
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38 --
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39 --
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40 -- CHANGE HISTORY:
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41 -- 06 Dec 94 SAIC ACVC 2.0
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42 --
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43 --!
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44
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45 package C393007_0 is
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46 -- Alert_System
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47
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48 type DT_Type is new Integer;
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49
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50 type Alert_Type is abstract tagged record
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51 Time_Of_Arrival : DT_Type;
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52 end record;
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53
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54 type Log_File_Type is range 0 .. 100;
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55
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56 Procedure Handle (A : in out Alert_type) is abstract;
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57
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58 procedure Log (A : Alert_Type;
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59 L : in out Log_File_Type) is abstract;
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60
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61 procedure Set_Time (A : in out Alert_Type);
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62
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63 function Correct_Time_Stamp (A : Alert_Type) return Boolean;
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64
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65 Day_Time : DT_Type := 100;
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66
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67 end C393007_0;
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68 -- Alert_System;
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69
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70 --=======================================================================--
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71
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72 package body C393007_0 is
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73 -- Alert_System
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74
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75 function Time_Stamp return DT_Type is
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76 begin
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77 Day_Time := Day_Time + 1;
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78 return Day_Time;
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79 end Time_Stamp;
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80
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81 procedure Set_Time (A : in out Alert_Type) is
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82 begin
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83 A.Time_Of_Arrival := Time_Stamp;
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84 end Set_time;
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85
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86 function Correct_Time_Stamp ( A : Alert_Type) return Boolean is
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87 begin
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88 return (A.Time_Of_Arrival = Day_Time);
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89 end Correct_Time_Stamp;
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90
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91 end C393007_0;
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92 -- Alert_System;
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93
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94 --=======================================================================--
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95
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96 with Report;
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97 with C393007_0;
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98 -- Alert_system;
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99
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100 package C393007_1 is
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101
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102 type Normal_Alert_Type is
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103 new C393007_0.Alert_Type
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104 with null record;
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105
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106 Log_File: C393007_0.Log_File_Type := C393007_0.Log_File_Type'First;
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107
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108 procedure Handle (A : in out Normal_Alert_Type); -- Override is required
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109
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110 procedure Log (A : Normal_Alert_Type; -- Override is required
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111 L : in out C393007_0.Log_File_Type);
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112 end C393007_1;
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113
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114 package body C393007_1 is
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115 use type C393007_0.Log_File_Type;
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116
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117 procedure Handle (A : in out Normal_Alert_Type) is
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118 begin
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119 Set_Time (A);
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120 Log (A, Log_File);
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121 end Handle;
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122
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123 procedure Log (A : Normal_Alert_Type;
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124 L : in out C393007_0.Log_File_Type) is
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125 begin
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126 L := C393007_0."+"(L, 1);
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127 end Log;
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128
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129 end C393007_1;
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130
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131 with Report;
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132 with C393007_0;
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133 with C393007_1;
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134 -- Alert_system;
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135
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136 procedure C393007 is
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137 use C393007_0;
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138 use C393007_1;
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139
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140 Alert_One : C393007_1.Normal_Alert_Type;
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141
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142 begin
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143 Report.Test ("C393007", "Check that an extended type can be derived " &
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144 "from an abstract type");
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145
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146 Handle (Alert_One);
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147 if not Correct_Time_Stamp (Alert_One) then
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148 Report.Failed ("Wrong results from procedure Handle");
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149 end if;
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150
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151 if Log_File /=1 then
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152 Report.Failed ("Wrong results");
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153 end if;
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154
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155 Report.Result;
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156
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157 end C393007;
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