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1 -- C74211B.ADA
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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 -- CHECK THAT IMPLICITLY DECLARED INEQUALITY WHICH ACCOMPANIES AN
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26 -- EXPLICIT DECLARATION OF EQUALITY HIDES OTHER IMPLICITLY DECLARED
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27 -- HOMOGRAPHS, AND THAT DERIVED INEQUALITY HIDES PREDEFINED INEQUALITY.
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28
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29 -- DSJ 4/29/83
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30 -- JBG 9/23/83
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31
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32 WITH REPORT;
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33 PROCEDURE C74211B IS
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34
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35 USE REPORT;
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36
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37 BEGIN
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38
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39 TEST( "C74211B", "CHECK THAT HIDING OF IMPLICITLY DECLARED " &
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40 "OPERATORS AND DERIVED SUBPROGRAMS IS DONE " &
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41 "CORRECTLY REGARDLESS OF ORDER OF DECL'S");
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42
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43 DECLARE
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44
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45 PACKAGE P1 IS
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46 TYPE LT1 IS LIMITED PRIVATE;
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47 FUNCTION "="(L, R : LT1) RETURN BOOLEAN;
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48 FUNCTION LT1_VALUE_2 RETURN LT1;
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49 FUNCTION LT1_VALUE_4 RETURN LT1;
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50 TYPE LT2 IS LIMITED PRIVATE;
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51 PRIVATE
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52 TYPE LT1 IS RANGE 1 .. 10;
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53 TYPE LT2 IS RANGE 1 .. 10;
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54 END P1;
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55
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56 USE P1;
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57
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58 PACKAGE P2 IS
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59 TYPE LT3 IS LIMITED PRIVATE;
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60 TYPE LT4 IS NEW LT1;
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61 PRIVATE
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62 FUNCTION "=" (L, R : LT3) RETURN BOOLEAN;
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63 TYPE LT3 IS NEW LT1;
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64 END P2;
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65
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66 USE P2;
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67
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68 PACKAGE BODY P1 IS
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69 A , B : CONSTANT LT1 := 4;
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70 C , D : CONSTANT LT2 := 6;
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71
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72 FUNCTION "=" (L, R : LT1) RETURN BOOLEAN IS
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73 BEGIN
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74 RETURN INTEGER(L) /= INTEGER(R);
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75 END "=";
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76
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77 FUNCTION LT1_VALUE_2 RETURN LT1 IS
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78 BEGIN
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79 RETURN 2;
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80 END LT1_VALUE_2;
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81
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82 FUNCTION LT1_VALUE_4 RETURN LT1 IS
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83 BEGIN
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84 RETURN 4;
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85 END LT1_VALUE_4;
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86
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87 BEGIN
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88 IF A = B THEN
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89 FAILED ("PREDEFINED EQUALITY NOT HIDDEN BY " &
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90 "EXPLICIT DECLARATION - LT1");
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91 END IF;
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92
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93 IF C /= D THEN
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94 FAILED ("WRONG PREDEFINED OPERATION - T2");
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95 END IF;
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96 END P1;
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97
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98 PACKAGE BODY P2 IS
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99 FUNCTION U RETURN LT3 IS
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100 BEGIN
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101 RETURN LT1_VALUE_2;
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102 END U;
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103
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104 FUNCTION V RETURN LT3 IS
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105 BEGIN
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106 RETURN LT1_VALUE_4;
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107 END V;
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108
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109 FUNCTION W RETURN LT4 IS
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110 BEGIN
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111 RETURN LT1_VALUE_2;
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112 END W;
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113
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114 FUNCTION X RETURN LT4 IS
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115 BEGIN
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116 RETURN LT1_VALUE_4;
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117 END X;
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118
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119 FUNCTION "=" (L, R : LT3) RETURN BOOLEAN IS
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120 BEGIN
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121 RETURN NOT (LT1(L) = LT1(R));
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122 END "=";
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123
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124 BEGIN
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125 IF NOT (U /= V) THEN
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126 FAILED ("DERIVED SUBPROGRAM NOT HIDDEN BY " &
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127 "IMPLICITLY DECLARED INEQUALITY " &
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128 "FROM EXPLICITLY DECLARED EQUALITY");
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129 END IF;
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130
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131 IF NOT (LT3(W) = U) THEN
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132 FAILED ("DERIVED SUBPROGRAM NOT HIDDEN BY " &
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133 "EXPLICIT DECLARATION - '=' ");
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134 END IF;
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135
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136 IF W /= X THEN
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137 FAILED ("PREDEFINED OPERATOR NOT HIDDEN BY " &
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138 "DERIVED SUBPROGRAM - '/=' ");
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139 END IF;
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140
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141 IF NOT ( X = W ) THEN
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142 FAILED ("PREDEFINED OPERATOR NOT HIDDEN BY " &
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143 "DERIVED SUBPROGRAM - '=' ");
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144 END IF;
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145
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146 END P2;
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147
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148 BEGIN
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149
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150 NULL;
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151
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152 END;
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153
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154 RESULT;
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155
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156 END C74211B;
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