1 | unit UDynamicNumber;
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2 |
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3 | {$mode Delphi}{$H+}
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4 |
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5 | interface
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6 |
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7 | uses
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8 | Classes, SysUtils;
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9 |
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10 | type
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11 | TDynamicNumber = class
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12 | private
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13 | function GetSize: Integer;
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14 | procedure SetSize(const AValue: Integer);
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15 | procedure CheckSize(Source: TDynamicNumber);
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16 | public
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17 | Value: array of Byte;
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18 | procedure Assign(AValue: Integer); overload;
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19 | procedure Assign(AValue: Byte); overload;
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20 |
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21 | function BitwiseAnd(AValue: TDynamicNumber): TDynamicNumber;
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22 | function BitwiseOr(AValue: TDynamicNumber): TDynamicNumber;
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23 | function BitwiseXor(AValue: TDynamicNumber): TDynamicNumber;
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24 | function BitwiseNot: TDynamicNumber;
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25 |
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26 | function Add(AValue: TDynamicNumber): TDynamicNumber;
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27 | function Subtract(AValue: TDynamicNumber): TDynamicNumber;
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28 | function Divide(AValue: TDynamicNumber): TDynamicNumber;
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29 | function Multiply(AValue: TDynamicNumber): TDynamicNumber;
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30 |
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31 | function EqualTo(AValue: TDynamicNumber): Boolean;
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32 | function HigerThen(AValue: TDynamicNumber): Boolean;
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33 | function LowerThen(AValue: TDynamicNumber): Boolean;
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34 |
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35 | procedure Shift(Direction: Integer);
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36 | property Size: Integer read GetSize write SetSize;
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37 | end;
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38 |
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39 | implementation
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40 |
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41 | { TDynamicNumber }
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42 |
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43 | function TDynamicNumber.GetSize: Integer;
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44 | begin
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45 | Result := Length(Value);
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46 | end;
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47 |
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48 | procedure TDynamicNumber.SetSize(const AValue: Integer);
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49 | begin
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50 | SetLength(Value, AValue);
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51 | end;
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52 |
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53 | procedure TDynamicNumber.CheckSize(Source: TDynamicNumber);
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54 | begin
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55 | if Source.Size <> Size then
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56 | raise Exception.Create('Size mismatch.');
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57 | end;
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58 |
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59 | procedure TDynamicNumber.Assign(AValue: Integer);
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60 | begin
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61 | Size := 4;
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62 | Value[0] := AValue;
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63 | Value[1] := AValue shr 8;
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64 | Value[2] := AValue shr 16;
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65 | Value[3] := AValue shr 24;
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66 | end;
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67 |
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68 | procedure TDynamicNumber.Assign(aValue: Byte);
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69 | begin
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70 | Size := 1;
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71 | Value[0] := AValue;
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72 | end;
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73 |
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74 | function TDynamicNumber.BitwiseAnd(AValue: TDynamicNumber): TDynamicNumber;
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75 | var
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76 | I: Integer;
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77 | begin
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78 | CheckSize(AValue);
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79 | for I := 0 to Length(Value) - 1 do
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80 | Value[I] := Value[I] and AValue.Value[I];
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81 | Result := Self;
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82 | end;
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83 |
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84 | function TDynamicNumber.BitwiseOr(AValue: TDynamicNumber): TDynamicNumber;
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85 | var
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86 | I: Integer;
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87 | begin
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88 | CheckSize(AValue);
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89 | for I := 0 to Length(Value) - 1 do
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90 | Value[I] := Value[I] or AValue.Value[I];
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91 | Result := Self;
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92 | end;
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93 |
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94 | function TDynamicNumber.BitwiseXor(AValue: TDynamicNumber): TDynamicNumber;
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95 | var
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96 | I: Integer;
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97 | begin
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98 | CheckSize(AValue);
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99 | for I := 0 to Length(Value) - 1 do
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100 | Value[I] := Value[I] xor AValue.Value[I];
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101 | Result := Self;
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102 | end;
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103 |
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104 | function TDynamicNumber.BitwiseNot: TDynamicNumber;
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105 | var
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106 | I: Integer;
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107 | begin
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108 | for I := 0 to Length(Value) - 1 do
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109 | Value[I] := not Value[I];
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110 | Result := Self;
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111 | end;
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112 |
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113 | function TDynamicNumber.Add(AValue: TDynamicNumber): TDynamicNumber;
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114 | begin
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115 | raise Exception.Create('Not implemented');
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116 | end;
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117 |
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118 | function TDynamicNumber.Subtract(AValue: TDynamicNumber): TDynamicNumber;
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119 | begin
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120 | raise Exception.Create('Not implemented');
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121 | end;
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122 |
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123 | function TDynamicNumber.Divide(AValue: TDynamicNumber): TDynamicNumber;
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124 | begin
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125 | raise Exception.Create('Not implemented');
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126 | end;
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127 |
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128 | function TDynamicNumber.Multiply(AValue: TDynamicNumber): TDynamicNumber;
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129 | begin
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130 | raise Exception.Create('Not implemented');
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131 | end;
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132 |
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133 | function TDynamicNumber.EqualTo(AValue: TDynamicNumber): Boolean;
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134 | var
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135 | I: Integer;
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136 | begin
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137 | CheckSize(AValue);
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138 | Result := True;
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139 | for I := 0 to Length(Value) - 1 do
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140 | if Value[I] <> Value[I] then begin
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141 | Result := False;
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142 | Break;
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143 | end;
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144 | end;
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145 |
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146 | function TDynamicNumber.HigerThen(AValue: TDynamicNumber): Boolean;
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147 | begin
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148 | raise Exception.Create('Not implemented');
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149 | end;
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150 |
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151 | function TDynamicNumber.LowerThen(AValue: TDynamicNumber): Boolean;
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152 | begin
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153 | raise Exception.Create('Not implemented');
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154 | end;
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155 |
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156 | procedure TDynamicNumber.Shift(Direction: Integer);
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157 | begin
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158 | raise Exception.Create('Not implemented');
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159 | end;
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160 |
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161 |
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162 | end.
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163 |
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