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1 -- C37003A.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 MULTIPLE COMPONENT DECLARATIONS ARE TREATED AS A SERIES
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26 -- OF SINGLE COMNENT DECLARATIONS, I.E., THE COMPONENTS ALL HAVE THE
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27 -- SAME TYPE AND ANY EXPRESSION USED IN CONSTRAINTS OR INITIALIZATIONS
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28 -- IS EVALUATED ONCE FOR EACH COMPONENT.
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29
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30 -- DAT 3/30/81
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31 -- SPS 10/26/82
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32 -- JWC 10/23/85 RENAMED FROM C37013A-AB.ADA.
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33 -- ADDED TEST TO ENSURE THAT ANY EXPRESSION USED
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34 -- IN A CONSTRAINT IS EVALUATED ONCE FOR EACH
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35 -- COMPONENT.
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36 -- JRK 11/15/85 ADDED INITIALIZATION EVALUATION CHECKS.
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37
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38 WITH REPORT; USE REPORT;
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39
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40 PROCEDURE C37003A IS
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41
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42 X : INTEGER := 0;
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43
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44 FUNCTION F RETURN INTEGER IS
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45 BEGIN
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46 X := X + 1;
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47 RETURN X;
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48 END F;
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49
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50 PROCEDURE RESET IS
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51 BEGIN
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52 X := 0;
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53 END RESET;
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54
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55 BEGIN
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56 TEST ("C37003A", "CHECK THAT MULTIPLE COMPONENT DECLARATIONS " &
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57 "ARE TREATED AS A SERIES OF SINGLE COMPONENT " &
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58 "DECLARATIONS");
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59
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60 DECLARE
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61
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62 TYPE ARR IS ARRAY (INTEGER RANGE <>) OF INTEGER;
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63
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64 TYPE REC1 IS RECORD
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65 A1, A2 : ARR (1 .. F) := (OTHERS => F);
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66 END RECORD;
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67
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68 R1 : REC1 := (OTHERS => (OTHERS => 1));
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69 Y : INTEGER := X;
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70 R1A : REC1;
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71
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72 BEGIN
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73
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74 IF R1.A1 = R1.A2 THEN -- TEST TO SEE IF THE COMPONENTS
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75 NULL; -- ARE OF THE SAME TYPE.
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76 END IF;
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77
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78 IF Y /= 2 THEN
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79 FAILED ("CONSTRAINT EXPRESSION NOT EVALUATED TWICE " &
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80 "FOR ARRAYS");
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81 END IF;
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82
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83 IF X /= 5 THEN
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84 FAILED ("INITIALIZATION EXPRESSION NOT EVALUATED FOR " &
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85 "EACH ARRAY COMPONENT");
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86 END IF;
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87
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88 RESET;
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89
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90 END;
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91
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92 DECLARE
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93
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94 TYPE REC2 IS RECORD
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95 I1, I2 : INTEGER RANGE 1 .. F := F * IDENT_INT(0) + 1;
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96 END RECORD;
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97
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98 R2 : REC2 := (OTHERS => 1);
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99 Y : INTEGER := X;
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100 R2A : REC2;
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101
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102 BEGIN
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103
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104 IF R2.I1 = R2.I2 THEN -- TEST TO SEE IF THE COMPONENTS
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105 NULL; -- ARE OF THE SAME TYPE.
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106 END IF;
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107
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108 IF Y /= 2 THEN
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109 FAILED ("CONSTRAINT EXPRESSION NOT EVALUATED TWICE " &
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110 "FOR SCALARS");
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111 END IF;
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112
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113 IF X /= 4 THEN
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114 FAILED ("INITIALIZATION EXPRESSION NOT EVALUATED FOR " &
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115 "EACH SCALAR COMPONENT");
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116 END IF;
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117
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118 RESET;
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119
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120 END;
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121
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122 DECLARE
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123
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124 TYPE REC3X (DSC : INTEGER) IS RECORD
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125 NULL;
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126 END RECORD;
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127
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128 TYPE REC3Y IS RECORD
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129 I : INTEGER;
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130 END RECORD;
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131
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132 TYPE REC3 IS RECORD
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133 RX1, RX2 : REC3X (F);
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134 RY1, RY2 : REC3Y := (I => F);
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135 END RECORD;
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136
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137 R3 : REC3 := ((DSC => 1), (DSC => 2), (I => 0), (I => 0));
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138 Y : INTEGER := X;
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139 R3A : REC3;
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140
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141 BEGIN
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142
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143 IF R3.RX1 = R3.RX2 THEN -- TEST TO SEE IF THE COMPONENTS
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144 NULL; -- ARE OF THE SAME TYPE.
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145 END IF;
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146
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147 IF Y /= 2 THEN
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148 FAILED ("CONSTRAINT EXPRESSION NOT EVALUATED TWICE " &
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149 "FOR RECORDS");
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150 END IF;
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151
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152 IF X /= 4 THEN
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153 FAILED ("INITIALIZATION EXPRESSION NOT EVALUATED " &
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154 "FOR EACH RECORD COMPONENT");
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155 END IF;
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156
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157 RESET;
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158
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159 END;
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160
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161 DECLARE
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162
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163 TYPE REC4X (DSC : INTEGER) IS RECORD
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164 NULL;
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165 END RECORD;
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166
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167 TYPE ACR IS ACCESS REC4X;
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168 TYPE ACI IS ACCESS INTEGER;
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169
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170 TYPE REC4 IS RECORD
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171 AC1, AC2 : ACR (F);
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172 AC3, AC4 : ACI := NEW INTEGER'(F);
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173 END RECORD;
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174
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175 R4 : REC4 := (NULL, NULL, NULL, NULL);
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176 Y : INTEGER := X;
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177 R4A : REC4;
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178
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179 BEGIN
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180
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181 IF R4.AC1 = R4.AC2 THEN -- TEST TO SEE IF THE COMPONENTS
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182 NULL; -- ARE OF THE SAME TYPE.
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183 END IF;
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184
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185 IF Y /= 2 THEN
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186 FAILED ("CONSTRAINT EXPRESSION NOT EVALUATED TWICE " &
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187 "FOR ACCESS");
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188 END IF;
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189
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190 IF X /= 4 THEN
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191 FAILED ("INITIALIZATION EXPRESSION NOT EVALUATED " &
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192 "FOR EACH ACCESS COMPONENT");
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193 END IF;
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194
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195 END;
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196
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197 RESULT;
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198 END C37003A;
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