1 | /* |
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2 | Copyright (C) 2015 |
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3 | Alejandro Mujica (amujica en cenditel.gob.ve) |
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4 | José Ángel Contreras (jancontreras en cenditel.gob.ve) |
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5 | Antonio Araujo (aaraujo en cenditel.gob.ve) |
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6 | Pedro Buitrago (pbuitrago en cenditel.gob.ve) |
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7 | |
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8 | CENDITEL Fundación Centro Nacional de Desarrollo e Investigación en |
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9 | Tecnologías Libres |
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10 | |
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11 | Este programa es software libre; Usted puede usarlo bajo los términos de la |
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12 | licencia de software GPL versión 2.0 de la Free Software Foundation. |
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13 | |
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14 | Este programa se distribuye con la esperanza de que sea útil, pero SIN |
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15 | NINGUNA GARANTÍA; tampoco las implícitas garantías de MERCANTILIDAD o |
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16 | ADECUACIÓN A UN PROPÓSITO PARTICULAR. |
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17 | Consulte la licencia GPL para más detalles. Usted debe recibir una copia |
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18 | de la GPL junto con este programa; si no, escriba a la Free Software |
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19 | Foundation Inc. 51 Franklin Street,5 Piso, Boston, MA 02110-1301, USA. |
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20 | */ |
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21 | |
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22 | /* |
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23 | Este archivo contiene la definición e implementación de una clase tipo |
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24 | plantilla para representar números enteros restringidos a un campo finito. |
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25 | |
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26 | Creado por: Alejandro J. Mujica |
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27 | Fecha de creación: |
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28 | */ |
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29 | |
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30 | |
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31 | # ifndef FIELD_NUMBER_H |
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32 | # define FIELD_NUMBER_H |
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33 | |
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34 | # include <iostream> |
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35 | # include <typeinfo> |
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36 | |
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37 | /** |
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38 | * Plantilla que representa un número restringido a un campo. |
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39 | * |
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40 | * @param Number_Type tipo numérico que se va a restringir. Debe ser un tipo |
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41 | * de los enteros de la biblioteca estándar de C++. |
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42 | * |
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43 | * @param Field Tipo de campo a utilizar. El campo debe manejar el mismo |
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44 | * tipo de número que se usa en esta plantilla. |
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45 | * |
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46 | * @see Field. |
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47 | * |
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48 | * @author Alejandro J. Mujica (amujica en cenditel punto gob punto ve). |
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49 | */ |
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50 | template <typename Number_Type, class Field_Type> |
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51 | class Field_Number |
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52 | { |
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53 | static_assert(std::is_integral<Number_Type>::value, |
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54 | "first template argument must be an integral type"); |
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55 | |
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56 | static_assert(std::is_same<Number_Type, typename Field_Type::number_t>::value, |
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57 | "first template argument in Field_Number is not the same type template\ |
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58 | argument in Field"); |
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59 | |
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60 | public: |
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61 | /// Tipo de campo que restringe al número. |
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62 | typedef Field_Type field_t; |
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63 | /// Tipo de número restringido. |
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64 | typedef typename field_t::number_t number_t; |
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65 | |
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66 | private: |
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67 | field_t field; |
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68 | |
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69 | number_t value; |
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70 | |
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71 | public: |
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72 | /// Constructor que funge de paramétrico y por omisión. |
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73 | Field_Number(const number_t & _value = number_t(0)); |
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74 | |
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75 | Field_Number operator + (const Field_Number &); |
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76 | |
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77 | Field_Number & operator += (const Field_Number &); |
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78 | |
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79 | Field_Number operator - (const Field_Number &); |
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80 | |
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81 | Field_Number & operator -= (const Field_Number &); |
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82 | |
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83 | Field_Number operator * (const Field_Number &); |
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84 | |
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85 | Field_Number & operator *= (const Field_Number &); |
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86 | |
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87 | Field_Number operator / (const Field_Number &); |
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88 | |
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89 | Field_Number & operator /= (const Field_Number &); |
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90 | |
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91 | bool operator == (const Field_Number &) const; |
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92 | |
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93 | bool operator != (const Field_Number &) const; |
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94 | |
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95 | bool operator ! () const; |
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96 | |
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97 | friend std::ostream & operator << (std::ostream & out, |
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98 | const Field_Number & fn) |
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99 | { |
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100 | out << (number_t) fn.value; |
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101 | return out; |
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102 | } |
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103 | |
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104 | Field_Number & operator ++ () const; |
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105 | |
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106 | Field_Number & operator -- () const; |
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107 | |
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108 | /// Operador de casting para el tipo numérico base. |
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109 | operator number_t & () |
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110 | { |
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111 | return value; |
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112 | } |
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113 | }; |
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114 | |
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115 | template <typename Number_Type, class Field> |
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116 | Field_Number<Number_Type, Field>::Field_Number(const number_t & _value) |
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117 | : field(), value(field(_value)) |
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118 | { |
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119 | // Empty |
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120 | } |
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121 | |
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122 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> |
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123 | Field_Number<Number_Type, Field>::operator + (const Field_Number & fn) |
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124 | { |
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125 | Field_Number ret; |
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126 | ret.value = field.sum(value, fn.value); |
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127 | return ret; |
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128 | } |
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129 | |
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130 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> & |
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131 | Field_Number<Number_Type, Field>::operator += (const Field_Number & fn) |
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132 | { |
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133 | *this = *this + fn; |
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134 | return *this; |
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135 | } |
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136 | |
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137 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> |
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138 | Field_Number<Number_Type, Field>::operator - (const Field_Number & fn) |
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139 | { |
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140 | Field_Number ret; |
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141 | ret.value = field.sub(value, fn.value); |
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142 | return ret; |
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143 | } |
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144 | |
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145 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> & |
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146 | Field_Number<Number_Type, Field>::operator -= (const Field_Number & fn) |
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147 | { |
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148 | *this = *this - fn; |
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149 | return *this; |
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150 | } |
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151 | |
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152 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> |
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153 | Field_Number<Number_Type, Field>::operator * (const Field_Number & fn) |
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154 | |
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155 | { |
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156 | Field_Number ret; |
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157 | ret.value = field.mul(value, fn.value); |
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158 | return ret; |
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159 | } |
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160 | |
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161 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> & |
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162 | Field_Number<Number_Type, Field>::operator *= (const Field_Number & fn) |
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163 | { |
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164 | *this = *this * fn; |
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165 | return *this; |
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166 | } |
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167 | |
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168 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> |
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169 | Field_Number<Number_Type, Field>::operator / (const Field_Number & fn) |
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170 | { |
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171 | Field_Number ret; |
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172 | ret.value = field.div(value, fn.value); |
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173 | return ret; |
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174 | } |
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175 | |
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176 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> & |
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177 | Field_Number<Number_Type, Field>::operator /= (const Field_Number & fn) |
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178 | { |
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179 | *this = *this / fn; |
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180 | return *this; |
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181 | } |
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182 | |
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183 | template <typename Number_Type, class Field> bool |
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184 | Field_Number<Number_Type, Field>::operator == (const Field_Number & fn) const |
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185 | { |
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186 | return value == fn.value; |
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187 | } |
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188 | |
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189 | template <typename Number_Type, class Field> bool |
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190 | Field_Number<Number_Type, Field>::operator != (const Field_Number & fn) const |
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191 | { |
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192 | return not (*this == fn); |
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193 | } |
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194 | |
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195 | template <typename Number_Type, class Field> |
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196 | bool Field_Number<Number_Type, Field>::operator ! () const |
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197 | { |
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198 | return value == number_t(0); |
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199 | } |
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200 | |
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201 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> & |
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202 | Field_Number<Number_Type, Field>::operator ++ () const |
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203 | { |
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204 | ++value; |
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205 | return *this; |
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206 | } |
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207 | |
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208 | template <typename Number_Type, class Field> Field_Number<Number_Type, Field> & |
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209 | Field_Number<Number_Type, Field>::operator -- () const |
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210 | { |
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211 | --value; |
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212 | return *this; |
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213 | } |
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214 | |
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215 | # endif // FIELD_NUMBER_H |
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216 | |
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