1 | /* emacs edit mode for this file is -*- C++ -*- */ |
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2 | /* $Id$ */ |
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3 | |
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4 | //{{{ docu |
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5 | // |
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6 | // var_intglobal.cc - internal data layout for global variable |
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7 | // data. |
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8 | // |
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9 | // In this file, some auxiliary classes and template classes are |
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10 | // defined which help managing global data associated with |
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11 | // variables. |
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12 | // |
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13 | // Used by: var_global.cc |
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14 | // |
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15 | //}}} |
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16 | |
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17 | #include <config.h> |
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18 | |
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19 | #include "cf_assert.h" |
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20 | |
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21 | #include <string.h> |
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22 | |
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23 | #include "var_intglobal.h" |
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24 | |
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25 | class Prim; |
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26 | class InternalPoly; |
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27 | |
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28 | //{{{ template <class T> T & PrimitiveArray<T>::operator [] ( int i ) |
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29 | //{{{ docu |
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30 | // |
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31 | // operator []() - get i'th element. |
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32 | // |
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33 | // Resize array if necessary. Mark the i'th element as |
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34 | // accessed. |
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35 | // |
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36 | //}}} |
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37 | template <class T> |
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38 | T & |
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39 | PrimitiveArray<T>::operator [] ( int i ) |
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40 | { |
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41 | ASSERT( i >= 0, "array index less than zero" ); |
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42 | if ( i < _size ) { |
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43 | _initializedFlags[ i ] = true; |
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44 | return _array[ i ]; |
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45 | } else { |
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46 | // resize arrays |
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47 | T * newArray = new T[ i+1 ]; |
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48 | bool * newFlags = new bool[ i+1 ]; |
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49 | int j = 0; |
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50 | // copy old contents |
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51 | while ( j < _size ) { |
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52 | newArray[ j ] = _array[ j ]; |
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53 | newFlags[ j ] = _initializedFlags[ j ]; |
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54 | j++; |
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55 | } |
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56 | // mark rest as uninitialized |
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57 | while ( j < i ) { |
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58 | newFlags[ j ] = false; |
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59 | j++; |
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60 | } |
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61 | // actual element mark as initialized |
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62 | newFlags[ i ] = true; |
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63 | |
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64 | // make new arrays actual ones |
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65 | delete [] _array; |
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66 | delete [] _initializedFlags; |
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67 | _array = newArray; |
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68 | _initializedFlags = newFlags; |
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69 | _size = i + 1; |
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70 | |
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71 | return _array[ i ]; |
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72 | } |
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73 | } |
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74 | //}}} |
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75 | |
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76 | //{{{ template <class T> bool PrimitiveArray<T>::isInitialized ( int i ) const |
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77 | //{{{ docu |
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78 | // |
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79 | // isInitialized() - check whether element i is already |
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80 | // initialized ( = has been accessed previously). |
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81 | // |
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82 | //}}} |
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83 | template <class T> |
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84 | bool |
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85 | PrimitiveArray<T>::isInitialized ( int i ) const |
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86 | { |
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87 | ASSERT( i >= 0, "array index less than zero" ); |
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88 | if ( i >= _size ) |
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89 | return false; |
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90 | else |
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91 | return _initializedFlags[ i ]; |
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92 | } |
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93 | //}}} |
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94 | |
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95 | //{{{ template <class T> int PrimitiveArray<T>::getFirstUninitialized () const |
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96 | //{{{ docu |
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97 | // |
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98 | // getFirstUninitialized() - get index to first uninitialized |
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99 | // element. |
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100 | // |
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101 | //}}} |
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102 | template <class T> |
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103 | int |
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104 | PrimitiveArray<T>::getFirstUninitialized () const |
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105 | { |
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106 | int i = 0; |
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107 | while ( i < _size && _initializedFlags[ i ] ) |
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108 | i++; |
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109 | return i; |
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110 | } |
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111 | //}}} |
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112 | |
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113 | //{{{ void globalVarData::initializeLongName( char * longName ) |
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114 | //{{{ docu |
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115 | // |
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116 | // initializeLongName() - correctly initialize _longName from |
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117 | // longName. |
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118 | // |
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119 | // _longName is first destroyed. If longName does not equal zero |
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120 | // we copy it to _longName after allocating memory for it. |
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121 | // |
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122 | // Note: be sure that _longName may be destroyed (e.g. when |
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123 | // calling this function from constructors). |
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124 | // |
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125 | //}}} |
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126 | void |
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127 | globalVarData::initializeLongName( char * longName ) |
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128 | { |
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129 | delete [] _longName; |
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130 | if ( ! longName ) |
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131 | _longName = 0; |
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132 | else { |
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133 | _longName = new char[ strlen( longName ) + 1 ]; |
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134 | strcpy( _longName, longName ); |
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135 | } |
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136 | } |
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137 | //}}} |
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138 | |
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139 | //{{{ globalVarData::globalVarData ( char name, char * longName ) |
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140 | //{{{ docu |
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141 | // |
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142 | // globalVarData() - (default) constructor. |
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143 | // |
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144 | //}}} |
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145 | globalVarData::globalVarData ( char name, char * longName ) : _name( name ) |
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146 | { |
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147 | _longName = 0; |
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148 | initializeLongName( longName ); |
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149 | } |
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150 | //}}} |
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151 | |
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152 | //{{{ globalVarData::globalVarData ( const globalVarData & d ) |
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153 | //{{{ docu |
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154 | // |
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155 | // globalVarData() - copy constructor. |
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156 | // |
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157 | //}}} |
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158 | globalVarData::globalVarData ( const globalVarData & d ) : _name( d._name ) |
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159 | { |
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160 | _longName = 0; |
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161 | initializeLongName( d._longName ); |
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162 | } |
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163 | //}}} |
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164 | |
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165 | //{{{ globalVarData & globalVarData::operator = ( const globalVarData & d ) |
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166 | //{{{ docu |
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167 | // |
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168 | // operator =() - assignment operator. |
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169 | // |
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170 | //}}} |
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171 | globalVarData & |
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172 | globalVarData::operator = ( const globalVarData & d ) |
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173 | { |
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174 | if ( this != &d ) { |
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175 | initializeLongName( d._longName ); |
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176 | _name = d._name; |
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177 | } |
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178 | return *this; |
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179 | } |
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180 | //}}} |
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181 | |
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182 | //{{{ bool operator ==, operator != ( const globalVarData & lhs, const globalVarData & rhs ) |
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183 | //{{{ docu |
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184 | // |
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185 | // operator ==(), operator !=() - compare two global data fields. |
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186 | // |
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187 | // Two data fields are equal iff their long names are equal. |
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188 | // |
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189 | //}}} |
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190 | bool |
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191 | operator == ( const globalVarData & lhs, const globalVarData & rhs ) |
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192 | { |
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193 | if ( ! lhs._longName && ! rhs._longName ) |
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194 | return true; |
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195 | if ( lhs._longName && rhs._longName ) |
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196 | return ! strcmp ( lhs._longName, rhs._longName ); |
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197 | else |
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198 | return false; |
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199 | } |
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200 | |
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201 | bool |
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202 | operator != ( const globalVarData & lhs, const globalVarData & rhs ) |
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203 | { |
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204 | return ! (lhs == rhs); |
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205 | } |
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206 | //}}} |
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207 | |
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208 | //{{{ globalAlgData & globalAlgData::operator = ( const globalAlgData & d ) |
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209 | //{{{ docu |
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210 | // |
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211 | // operator =() - assignment operator. |
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212 | // |
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213 | //}}} |
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214 | globalAlgData & |
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215 | globalAlgData::operator = ( const globalAlgData & d ) |
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216 | { |
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217 | if ( this != &d ) { |
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218 | globalVarData::operator= ( d ); |
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219 | _mipo = d._mipo; |
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220 | _reduce = d._reduce; |
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221 | } |
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222 | return *this; |
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223 | } |
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224 | //}}} |
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225 | |
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226 | //{{{ globalAlgNumData & globalAlgNumData::operator = ( const globalAlgNumData & d ) |
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227 | //{{{ docu |
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228 | // |
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229 | // operator =() - assignment operator. |
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230 | // |
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231 | //}}} |
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232 | globalAlgNumData & |
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233 | globalAlgNumData::operator = ( const globalAlgNumData & d ) |
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234 | { |
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235 | if ( this != &d ) { |
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236 | (globalVarData)*this = d; |
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237 | _prim = d._prim; |
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238 | } |
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239 | return *this; |
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240 | } |
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241 | //}}} |
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242 | |
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243 | // for convenience, the templates are instantiated in this place |
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244 | // instead of in ftmpl_inst.cc |
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245 | template class PrimitiveArray<globalVarData>; |
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246 | template class PrimitiveArray<globalAlgNumData>; |
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247 | template class PrimitiveArray<globalAlgData>; |
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