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### |
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### Copyright 2002-2003 University of Illinois Board of Trustees |
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### Copyright 2002-2003 Mark D. Roth |
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### All rights reserved. |
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### |
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### Config::Objective::Integer - integer data type for Config::Objective |
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### |
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### Mark D. Roth |
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### Campus Information Technologies and Educational Services |
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### University of Illinois at Urbana-Champaign |
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### |
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package Config::Objective::Integer; |
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1
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531
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use strict; |
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use integer; |
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#use overload |
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# '""' => 'get', |
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## '0+' => 'get', |
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# '+' => 'numeric_add', |
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# '=' => 'set', |
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# 'eq' => 'equals', |
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## 'fallback' => 1 |
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# ; |
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1
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use Config::Objective::DataType; |
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2
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1
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663
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30
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31
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our @ISA = qw(Config::Objective::DataType); |
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34
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############################################################################### |
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### equals method (for conditional expressions) |
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############################################################################### |
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38
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sub equals |
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{ |
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3
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3
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1
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my ($self, $value) = @_; |
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42
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3
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9
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return $self->eq($value); |
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} |
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46
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sub eq |
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{ |
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3
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3
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1
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my ($self, $value) = @_; |
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50
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# print "==> equals(" . ref($self) . "='$self->{'value'}', '$value')\n"; |
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52
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3
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13
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return ($self->{'value'} == $value); |
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53
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} |
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55
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56
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############################################################################### |
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### not-equals method (for conditional expressions) |
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############################################################################### |
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60
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sub ne |
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{ |
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0
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0
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1
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0
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my ($self, $value) = @_; |
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64
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0
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0
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return ($self->{'value'} != $value); |
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} |
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67
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68
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############################################################################### |
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### greater-than method (for conditional expressions) |
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############################################################################### |
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72
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sub gt |
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{ |
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0
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0
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1
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0
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my ($self, $value) = @_; |
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76
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0
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0
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return ($self->{'value'} > $value); |
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77
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} |
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79
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80
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############################################################################### |
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### less-than method (for conditional expressions) |
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############################################################################### |
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84
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sub lt |
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85
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{ |
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1
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1
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1
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3
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my ($self, $value) = @_; |
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87
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88
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1
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6
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return ($self->{'value'} < $value); |
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} |
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91
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92
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############################################################################### |
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93
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### less-than-or-equal-to method (for conditional expressions) |
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############################################################################### |
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96
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sub le |
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{ |
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98
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0
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0
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1
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0
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my ($self, $value) = @_; |
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99
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100
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0
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0
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return ($self->{'value'} <= $value); |
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101
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} |
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102
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103
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104
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############################################################################### |
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105
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### greater-than-or-equal-to method (for conditional expressions) |
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106
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############################################################################### |
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107
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108
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sub ge |
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109
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{ |
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110
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0
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0
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1
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0
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my ($self, $value) = @_; |
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111
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112
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0
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0
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return ($self->{'value'} >= $value); |
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113
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} |
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114
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115
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116
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############################################################################### |
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117
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### set method |
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118
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############################################################################### |
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119
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120
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sub set |
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121
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{ |
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122
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6
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6
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1
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10
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my ($self, $value) = @_; |
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123
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124
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# print "==> Integer::set($value)\n"; |
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125
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126
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6
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50
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14
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die "value required\n" |
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127
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if (!defined($value)); |
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128
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129
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6
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50
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12
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die "non-scalar value specified for integer variable\n" |
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130
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if (ref($value)); |
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131
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132
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6
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50
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23
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die "non-numeric value specified for integer variable\n" |
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133
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if ($value !~ m/^-?\d+$/); |
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134
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135
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6
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20
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$self->{'value'} = $value; |
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136
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} |
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137
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138
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139
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############################################################################### |
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140
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### add method |
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141
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############################################################################### |
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142
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143
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sub add |
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144
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{ |
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145
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1
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1
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1
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15
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my ($self, $value) = @_; |
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146
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147
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1
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5
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$self->{'value'} += $value; |
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148
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} |
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149
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150
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151
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############################################################################### |
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152
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### subtract method |
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153
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############################################################################### |
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154
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155
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sub sub |
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156
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{ |
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157
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1
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1
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1
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3
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my ($self, $value) = @_; |
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158
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159
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1
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4
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$self->{'value'} -= $value; |
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160
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} |
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161
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162
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163
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############################################################################### |
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164
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### divide method |
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165
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############################################################################### |
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166
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167
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sub div |
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168
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{ |
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169
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1
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1
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1
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2
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my ($self, $value) = @_; |
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170
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171
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1
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5
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$self->{'value'} = int($self->{'value'} / $value); |
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172
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} |
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173
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174
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175
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############################################################################### |
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176
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### multiply method |
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177
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############################################################################### |
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178
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179
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sub mult |
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180
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{ |
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181
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1
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1
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1
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3
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my ($self, $value) = @_; |
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182
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183
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1
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3
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$self->{'value'} *= $value; |
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184
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} |
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185
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186
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187
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############################################################################### |
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188
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### increment method |
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189
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############################################################################### |
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190
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191
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sub incr |
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192
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{ |
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193
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1
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1
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1
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3
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my ($self) = @_; |
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194
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195
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1
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4
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$self->{'value'}++; |
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196
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} |
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197
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198
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199
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############################################################################### |
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200
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### decrement method |
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201
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############################################################################### |
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202
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203
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sub decr |
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204
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{ |
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205
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1
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1
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1
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2
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my ($self) = @_; |
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206
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207
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1
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6
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$self->{'value'}--; |
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208
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} |
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209
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210
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211
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############################################################################### |
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212
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### cleanup and documentation |
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213
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############################################################################### |
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214
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215
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1; |
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216
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217
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__END__ |