1 | /// \ingroup newmat
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2 | ///@{
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3 |
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4 | /// \file submat.cpp
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5 | /// Submatrix manipulation.
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6 |
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7 | // Copyright (C) 1991,2,3,4: R B Davies
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8 |
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9 | #include "include.h"
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10 |
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11 | #include "newmat.h"
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12 | #include "newmatrc.h"
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13 |
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14 | #ifdef use_namespace
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15 | namespace NEWMAT {
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16 | #endif
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17 |
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18 | #ifdef DO_REPORT
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19 | #define REPORT { static ExeCounter ExeCount(__LINE__,11); ++ExeCount; }
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20 | #else
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21 | #define REPORT {}
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22 | #endif
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23 |
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24 |
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25 | /****************************** submatrices *********************************/
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26 |
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27 | GetSubMatrix BaseMatrix::submatrix(int first_row, int last_row, int first_col,
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28 | int last_col) const
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29 | {
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30 | REPORT
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31 | Tracer tr("submatrix");
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32 | int a = first_row - 1; int b = last_row - first_row + 1;
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33 | int c = first_col - 1; int d = last_col - first_col + 1;
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34 | if (a<0 || b<0 || c<0 || d<0) Throw(SubMatrixDimensionException());
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35 | // allow zero rows or columns
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36 | return GetSubMatrix(this, a, b, c, d, false);
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37 | }
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38 |
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39 | GetSubMatrix BaseMatrix::sym_submatrix(int first_row, int last_row) const
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40 | {
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41 | REPORT
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42 | Tracer tr("sym_submatrix");
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43 | int a = first_row - 1; int b = last_row - first_row + 1;
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44 | if (a<0 || b<0) Throw(SubMatrixDimensionException());
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45 | // allow zero rows or columns
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46 | return GetSubMatrix( this, a, b, a, b, true);
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47 | }
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48 |
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49 | GetSubMatrix BaseMatrix::row(int first_row) const
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50 | {
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51 | REPORT
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52 | Tracer tr("SubMatrix(row)");
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53 | int a = first_row - 1;
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54 | if (a<0) Throw(SubMatrixDimensionException());
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55 | return GetSubMatrix(this, a, 1, 0, -1, false);
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56 | }
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57 |
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58 | GetSubMatrix BaseMatrix::rows(int first_row, int last_row) const
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59 | {
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60 | REPORT
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61 | Tracer tr("SubMatrix(rows)");
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62 | int a = first_row - 1; int b = last_row - first_row + 1;
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63 | if (a<0 || b<0) Throw(SubMatrixDimensionException());
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64 | // allow zero rows or columns
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65 | return GetSubMatrix(this, a, b, 0, -1, false);
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66 | }
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67 |
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68 | GetSubMatrix BaseMatrix::column(int first_col) const
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69 | {
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70 | REPORT
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71 | Tracer tr("SubMatrix(column)");
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72 | int c = first_col - 1;
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73 | if (c<0) Throw(SubMatrixDimensionException());
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74 | return GetSubMatrix(this, 0, -1, c, 1, false);
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75 | }
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76 |
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77 | GetSubMatrix BaseMatrix::columns(int first_col, int last_col) const
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78 | {
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79 | REPORT
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80 | Tracer tr("SubMatrix(columns)");
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81 | int c = first_col - 1; int d = last_col - first_col + 1;
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82 | if (c<0 || d<0) Throw(SubMatrixDimensionException());
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83 | // allow zero rows or columns
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84 | return GetSubMatrix(this, 0, -1, c, d, false);
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85 | }
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86 |
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87 | void GetSubMatrix::SetUpLHS()
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88 | {
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89 | REPORT
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90 | Tracer tr("SubMatrix(LHS)");
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91 | const BaseMatrix* bm1 = bm;
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92 | GeneralMatrix* gm1 = ((BaseMatrix*&)bm)->Evaluate();
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93 | if ((BaseMatrix*)gm1!=bm1)
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94 | Throw(ProgramException("Invalid LHS"));
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95 | if (row_number < 0) row_number = gm1->Nrows();
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96 | if (col_number < 0) col_number = gm1->Ncols();
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97 | if (row_skip+row_number > gm1->Nrows()
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98 | || col_skip+col_number > gm1->Ncols())
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99 | Throw(SubMatrixDimensionException());
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100 | }
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101 |
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102 | void GetSubMatrix::operator<<(const BaseMatrix& bmx)
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103 | {
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104 | REPORT
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105 | Tracer tr("SubMatrix(<<)"); GeneralMatrix* gmx = 0;
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106 | Try
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107 | {
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108 | SetUpLHS(); gmx = ((BaseMatrix&)bmx).Evaluate();
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109 | if (row_number != gmx->Nrows() || col_number != gmx->Ncols())
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110 | Throw(IncompatibleDimensionsException());
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111 | MatrixRow mrx(gmx, LoadOnEntry);
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112 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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113 | // do need LoadOnEntry
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114 | MatrixRowCol sub; int i = row_number;
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115 | while (i--)
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116 | {
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117 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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118 | sub.Copy(mrx); mr.Next(); mrx.Next();
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119 | }
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120 | gmx->tDelete();
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121 | }
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122 |
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123 | CatchAll
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124 | {
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125 | if (gmx) gmx->tDelete();
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126 | ReThrow;
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127 | }
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128 | }
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129 |
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130 | void GetSubMatrix::operator=(const BaseMatrix& bmx)
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131 | {
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132 | REPORT
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133 | Tracer tr("SubMatrix(=)"); GeneralMatrix* gmx = 0;
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134 | // MatrixConversionCheck mcc; // Check for loss of info
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135 | Try
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136 | {
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137 | SetUpLHS(); gmx = ((BaseMatrix&)bmx).Evaluate();
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138 | if (row_number != gmx->Nrows() || col_number != gmx->Ncols())
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139 | Throw(IncompatibleDimensionsException());
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140 | LoadAndStoreFlag lasf =
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141 | ( row_skip == col_skip
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142 | && gm->type().is_symmetric()
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143 | && gmx->type().is_symmetric() )
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144 | ? LoadOnEntry+DirectPart
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145 | : LoadOnEntry;
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146 | MatrixRow mrx(gmx, lasf);
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147 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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148 | // do need LoadOnEntry
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149 | MatrixRowCol sub; int i = row_number;
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150 | while (i--)
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151 | {
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152 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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153 | sub.CopyCheck(mrx); mr.Next(); mrx.Next();
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154 | }
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155 | gmx->tDelete();
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156 | }
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157 |
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158 | CatchAll
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159 | {
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160 | if (gmx) gmx->tDelete();
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161 | ReThrow;
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162 | }
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163 | }
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164 |
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165 | void GetSubMatrix::operator<<(const double* r)
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166 | {
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167 | REPORT
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168 | Tracer tr("SubMatrix(<<double*)");
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169 | SetUpLHS();
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170 | if (row_skip+row_number > gm->Nrows() || col_skip+col_number > gm->Ncols())
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171 | Throw(SubMatrixDimensionException());
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172 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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173 | // do need LoadOnEntry
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174 | MatrixRowCol sub; int i = row_number;
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175 | while (i--)
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176 | {
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177 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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178 | sub.Copy(r); mr.Next();
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179 | }
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180 | }
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181 |
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182 | void GetSubMatrix::operator<<(const float* r)
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183 | {
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184 | REPORT
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185 | Tracer tr("SubMatrix(<<float*)");
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186 | SetUpLHS();
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187 | if (row_skip+row_number > gm->Nrows() || col_skip+col_number > gm->Ncols())
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188 | Throw(SubMatrixDimensionException());
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189 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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190 | // do need LoadOnEntry
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191 | MatrixRowCol sub; int i = row_number;
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192 | while (i--)
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193 | {
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194 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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195 | sub.Copy(r); mr.Next();
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196 | }
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197 | }
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198 |
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199 | void GetSubMatrix::operator<<(const int* r)
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200 | {
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201 | REPORT
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202 | Tracer tr("SubMatrix(<<int*)");
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203 | SetUpLHS();
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204 | if (row_skip+row_number > gm->Nrows() || col_skip+col_number > gm->Ncols())
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205 | Throw(SubMatrixDimensionException());
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206 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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207 | // do need LoadOnEntry
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208 | MatrixRowCol sub; int i = row_number;
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209 | while (i--)
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210 | {
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211 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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212 | sub.Copy(r); mr.Next();
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213 | }
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214 | }
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215 |
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216 | void GetSubMatrix::operator=(Real r)
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217 | {
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218 | REPORT
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219 | Tracer tr("SubMatrix(=Real)");
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220 | SetUpLHS();
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221 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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222 | // do need LoadOnEntry
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223 | MatrixRowCol sub; int i = row_number;
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224 | while (i--)
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225 | {
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226 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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227 | sub.Copy(r); mr.Next();
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228 | }
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229 | }
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230 |
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231 | void GetSubMatrix::inject(const GeneralMatrix& gmx)
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232 | {
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233 | REPORT
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234 | Tracer tr("SubMatrix(inject)");
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235 | SetUpLHS();
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236 | if (row_number != gmx.Nrows() || col_number != gmx.Ncols())
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237 | Throw(IncompatibleDimensionsException());
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238 | MatrixRow mrx((GeneralMatrix*)(&gmx), LoadOnEntry);
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239 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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240 | // do need LoadOnEntry
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241 | MatrixRowCol sub; int i = row_number;
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242 | while (i--)
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243 | {
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244 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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245 | sub.Inject(mrx); mr.Next(); mrx.Next();
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246 | }
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247 | }
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248 |
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249 | void GetSubMatrix::operator+=(const BaseMatrix& bmx)
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250 | {
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251 | REPORT
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252 | Tracer tr("SubMatrix(+=)"); GeneralMatrix* gmx = 0;
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253 | // MatrixConversionCheck mcc; // Check for loss of info
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254 | Try
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255 | {
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256 | SetUpLHS(); gmx = ((BaseMatrix&)bmx).Evaluate();
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257 | if (row_number != gmx->Nrows() || col_number != gmx->Ncols())
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258 | Throw(IncompatibleDimensionsException());
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259 | if (gm->type().is_symmetric() &&
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260 | ( ! gmx->type().is_symmetric() || row_skip != col_skip) )
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261 | Throw(ProgramException("Illegal operation on symmetric"));
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262 | MatrixRow mrx(gmx, LoadOnEntry);
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263 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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264 | // do need LoadOnEntry
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265 | MatrixRowCol sub; int i = row_number;
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266 | while (i--)
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267 | {
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268 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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269 | sub.Check(mrx); // check for loss of info
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270 | sub.Add(mrx); mr.Next(); mrx.Next();
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271 | }
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272 | gmx->tDelete();
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273 | }
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274 |
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275 | CatchAll
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276 | {
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277 | if (gmx) gmx->tDelete();
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278 | ReThrow;
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279 | }
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280 | }
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281 |
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282 | void GetSubMatrix::SP_eq(const BaseMatrix& bmx)
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283 | {
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284 | REPORT
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285 | Tracer tr("SubMatrix(SP_eq)"); GeneralMatrix* gmx = 0;
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286 | // MatrixConversionCheck mcc; // Check for loss of info
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287 | Try
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288 | {
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289 | SetUpLHS(); gmx = ((BaseMatrix&)bmx).Evaluate();
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290 | if (row_number != gmx->Nrows() || col_number != gmx->Ncols())
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291 | Throw(IncompatibleDimensionsException());
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292 | if (gm->type().is_symmetric() &&
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293 | ( ! gmx->type().is_symmetric() || row_skip != col_skip) )
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294 | Throw(ProgramException("Illegal operation on symmetric"));
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295 | MatrixRow mrx(gmx, LoadOnEntry);
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296 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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297 | // do need LoadOnEntry
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298 | MatrixRowCol sub; int i = row_number;
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299 | while (i--)
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300 | {
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301 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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302 | sub.Multiply(mrx); mr.Next(); mrx.Next();
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303 | }
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304 | gmx->tDelete();
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305 | }
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306 |
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307 | CatchAll
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308 | {
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309 | if (gmx) gmx->tDelete();
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310 | ReThrow;
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311 | }
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312 | }
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313 |
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314 | void GetSubMatrix::operator-=(const BaseMatrix& bmx)
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315 | {
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316 | REPORT
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317 | Tracer tr("SubMatrix(-=)"); GeneralMatrix* gmx = 0;
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318 | // MatrixConversionCheck mcc; // Check for loss of info
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319 | Try
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320 | {
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321 | SetUpLHS(); gmx = ((BaseMatrix&)bmx).Evaluate();
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322 | if (row_number != gmx->Nrows() || col_number != gmx->Ncols())
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323 | Throw(IncompatibleDimensionsException());
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324 | if (gm->type().is_symmetric() &&
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325 | ( ! gmx->type().is_symmetric() || row_skip != col_skip) )
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326 | Throw(ProgramException("Illegal operation on symmetric"));
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327 | MatrixRow mrx(gmx, LoadOnEntry);
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328 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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329 | // do need LoadOnEntry
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330 | MatrixRowCol sub; int i = row_number;
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331 | while (i--)
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332 | {
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333 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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334 | sub.Check(mrx); // check for loss of info
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335 | sub.Sub(mrx); mr.Next(); mrx.Next();
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336 | }
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337 | gmx->tDelete();
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338 | }
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339 |
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340 | CatchAll
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341 | {
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342 | if (gmx) gmx->tDelete();
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343 | ReThrow;
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344 | }
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345 | }
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346 |
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347 | void GetSubMatrix::operator+=(Real r)
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348 | {
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349 | REPORT
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350 | Tracer tr("SubMatrix(+= or -= Real)");
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351 | // MatrixConversionCheck mcc; // Check for loss of info
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352 | Try
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353 | {
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354 | SetUpLHS();
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355 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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356 | // do need LoadOnEntry
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357 | MatrixRowCol sub; int i = row_number;
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358 | while (i--)
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359 | {
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360 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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361 | sub.Check(); // check for loss of info
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362 | sub.Add(r); mr.Next();
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363 | }
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364 | }
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365 |
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366 | CatchAll
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367 | {
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368 | ReThrow;
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369 | }
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370 | }
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371 |
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372 | void GetSubMatrix::operator*=(Real r)
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373 | {
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374 | REPORT
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375 | Tracer tr("SubMatrix(*= or /= Real)");
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376 | // MatrixConversionCheck mcc; // Check for loss of info
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377 | Try
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378 | {
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379 | SetUpLHS();
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380 | MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
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381 | // do need LoadOnEntry
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382 | MatrixRowCol sub; int i = row_number;
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383 | while (i--)
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384 | {
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385 | mr.SubRowCol(sub, col_skip, col_number); // put values in sub
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386 | sub.Multiply(r); mr.Next();
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387 | }
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388 | }
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389 |
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390 | CatchAll
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391 | {
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392 | ReThrow;
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393 | }
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394 | }
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395 |
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396 | #ifdef use_namespace
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397 | }
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398 | #endif
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399 |
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400 | ///@}
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401 |
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