internal virtual void Map2ToUnchecked(MatrixStorage <T> target, MatrixStorage <T> other, Func <T, T, T> f, Zeros zeros, ExistingData existingData)
{
for (int i = 0; i < RowCount; i++)
{
for (int j = 0; j < ColumnCount; j++)
{
target.At(i, j, f(At(i, j), other.At(i, j)));
}
}
}
internal virtual void TransposeToUnchecked(MatrixStorage <T> target, ExistingData existingData)
{
for (int j = 0; j < ColumnCount; j++)
{
for (int i = 0; i < RowCount; i++)
{
target.At(j, i, At(i, j));
}
}
}
internal virtual void MapIndexedToUnchecked <TU>(MatrixStorage <TU> target, Func <int, int, T, TU> f, Zeros zeros, ExistingData existingData)
where TU : struct, IEquatable <TU>, IFormattable
{
for (int j = 0; j < ColumnCount; j++)
{
for (int i = 0; i < RowCount; i++)
{
target.At(i, j, f(i, j, At(i, j)));
}
}
}
internal virtual void CopySubMatrixToUnchecked(MatrixStorage <T> target,
int sourceRowIndex, int targetRowIndex, int rowCount,
int sourceColumnIndex, int targetColumnIndex, int columnCount,
ExistingData existingData)
{
for (int j = sourceColumnIndex, jj = targetColumnIndex; j < sourceColumnIndex + columnCount; j++, jj++)
{
for (int i = sourceRowIndex, ii = targetRowIndex; i < sourceRowIndex + rowCount; i++, ii++)
{
target.At(ii, jj, At(i, j));
}
}
}
internal virtual TState Fold2Unchecked <TOther, TState>(MatrixStorage <TOther> other, Func <TState, T, TOther, TState> f, TState state, Zeros zeros)
where TOther : struct, IEquatable <TOther>, IFormattable
{
for (int i = 0; i < RowCount; i++)
{
for (int j = 0; j < ColumnCount; j++)
{
state = f(state, At(i, j), other.At(i, j));
}
}
return(state);
}
internal virtual void MapSubMatrixIndexedToUnchecked <TU>(MatrixStorage <TU> target, Func <int, int, T, TU> f,
int sourceRowIndex, int targetRowIndex, int rowCount,
int sourceColumnIndex, int targetColumnIndex, int columnCount,
Zeros zeros, ExistingData existingData)
where TU : struct, IEquatable <TU>, IFormattable
{
for (int j = sourceColumnIndex, jj = targetColumnIndex; j < sourceColumnIndex + columnCount; j++, jj++)
{
for (int i = sourceRowIndex, ii = targetRowIndex; i < sourceRowIndex + rowCount; i++, ii++)
{
target.At(ii, jj, f(ii, jj, At(i, j)));
}
}
}
// COLUMN COPY
internal override void CopyToColumnUnchecked(MatrixStorage <T> target, int columnIndex, ExistingData existingData)
{
if (target is DenseColumnMajorMatrixStorage <T> denseTarget)
{
Array.Copy(Data, 0, denseTarget.Data, columnIndex * denseTarget.RowCount, Data.Length);
return;
}
// FALL BACK
for (int i = 0; i < Length; i++)
{
target.At(i, columnIndex, Data[i]);
}
}
// SUB-COLUMN COPY
internal override void CopyToSubColumnUnchecked(MatrixStorage <T> target, int columnIndex,
int sourceRowIndex, int targetRowIndex, int rowCount, ExistingData existingData)
{
if (target is DenseColumnMajorMatrixStorage <T> denseTarget)
{
Array.Copy(Data, sourceRowIndex, denseTarget.Data, columnIndex * denseTarget.RowCount + targetRowIndex, rowCount);
return;
}
// FALL BACK
for (int i = sourceRowIndex, ii = targetRowIndex; i < sourceRowIndex + rowCount; i++, ii++)
{
target.At(ii, columnIndex, Data[i]);
}
}
// COLUMN COPY
internal override void CopyToColumnUnchecked(MatrixStorage <T> target, int columnIndex, ExistingData existingData)
{
if (existingData == ExistingData.Clear)
{
target.ClearUnchecked(0, Length, columnIndex, 1);
}
if (ValueCount == 0)
{
return;
}
for (int i = 0; i < ValueCount; i++)
{
target.At(Indices[i], columnIndex, Values[i]);
}
}
internal virtual Tuple <int, int, T, TOther> Find2Unchecked <TOther>(MatrixStorage <TOther> other, Func <T, TOther, bool> predicate, Zeros zeros)
where TOther : struct, IEquatable <TOther>, IFormattable
{
for (int i = 0; i < RowCount; i++)
{
for (int j = 0; j < ColumnCount; j++)
{
var item = At(i, j);
var otherItem = other.At(i, j);
if (predicate(item, otherItem))
{
return(new Tuple <int, int, T, TOther>(i, j, item, otherItem));
}
}
}
return(null);
}
// Row COPY
internal override void CopyToRowUnchecked(MatrixStorage <T> target, int rowIndex, ExistingData existingData)
{
if (existingData == ExistingData.Clear)
{
target.ClearUnchecked(rowIndex, 1, 0, Length);
}
if (ValueCount == 0)
{
return;
}
for (int i = 0; i < ValueCount; i++)
{
target.At(rowIndex, Indices[i], Values[i]);
}
}
// MATRIX COPY
internal override void CopyToUnchecked(MatrixStorage <T> target, ExistingData existingData)
{
if (target is DenseColumnMajorMatrixStorage <T> denseTarget)
{
CopyToUnchecked(denseTarget);
return;
}
// FALL BACK
for (int j = 0, offset = 0; j < ColumnCount; j++, offset += RowCount)
{
for (int i = 0; i < RowCount; i++)
{
target.At(i, j, Data[i + offset]);
}
}
}
// ROW COPY
internal override void CopyToRowUnchecked(MatrixStorage <T> target, int rowIndex, ExistingData existingData)
{
if (target is DenseColumnMajorMatrixStorage <T> denseTarget)
{
for (int j = 0; j < Data.Length; j++)
{
denseTarget.Data[j * target.RowCount + rowIndex] = Data[j];
}
return;
}
// FALL BACK
for (int j = 0; j < Length; j++)
{
target.At(rowIndex, j, Data[j]);
}
}
// SUB-ROW COPY
internal override void CopyToSubRowUnchecked(MatrixStorage <T> target, int rowIndex,
int sourceColumnIndex, int targetColumnIndex, int columnCount, ExistingData existingData)
{
if (target is DenseColumnMajorMatrixStorage <T> denseTarget)
{
for (int j = 0; j < Data.Length; j++)
{
denseTarget.Data[(j + targetColumnIndex) * target.RowCount + rowIndex] = Data[j + sourceColumnIndex];
}
return;
}
// FALL BACK
for (int j = sourceColumnIndex, jj = targetColumnIndex; j < sourceColumnIndex + columnCount; j++, jj++)
{
target.At(rowIndex, jj, Data[j]);
}
}
// TRANSPOSE
internal override void TransposeToUnchecked(MatrixStorage <T> target, ExistingData existingData)
{
if (target is DenseColumnMajorMatrixStorage <T> denseTarget)
{
TransposeToUnchecked(denseTarget);
return;
}
if (target is SparseCompressedRowMatrixStorage <T> sparseTarget)
{
TransposeToUnchecked(sparseTarget);
return;
}
// FALL BACK
for (int j = 0, offset = 0; j < ColumnCount; j++, offset += RowCount)
{
for (int i = 0; i < RowCount; i++)
{
target.At(j, i, Data[i + offset]);
}
}
}
internal override void CopySubMatrixToUnchecked(MatrixStorage <T> target,
int sourceRowIndex, int targetRowIndex, int rowCount,
int sourceColumnIndex, int targetColumnIndex, int columnCount,
ExistingData existingData)
{
if (target is DenseColumnMajorMatrixStorage <T> denseTarget)
{
CopySubMatrixToUnchecked(denseTarget, sourceRowIndex, targetRowIndex, rowCount, sourceColumnIndex, targetColumnIndex, columnCount);
return;
}
// TODO: Proper Sparse Implementation
// FALL BACK
for (int j = sourceColumnIndex, jj = targetColumnIndex; j < sourceColumnIndex + columnCount; j++, jj++)
{
int index = sourceRowIndex + j * RowCount;
for (int ii = targetRowIndex; ii < targetRowIndex + rowCount; ii++)
{
target.At(ii, jj, Data[index++]);
}
}
}
internal override void MapSubMatrixIndexedToUnchecked <TU>(MatrixStorage <TU> target, Func <int, int, T, TU> f,
int sourceRowIndex, int targetRowIndex, int rowCount,
int sourceColumnIndex, int targetColumnIndex, int columnCount,
Zeros zeros, ExistingData existingData)
{
if (target is DiagonalMatrixStorage <TU> diagonalTarget)
{
MapSubMatrixIndexedToUnchecked(diagonalTarget, f, sourceRowIndex, targetRowIndex, rowCount, sourceColumnIndex, targetColumnIndex, columnCount, zeros);
return;
}
if (target is DenseColumnMajorMatrixStorage <TU> denseTarget)
{
MapSubMatrixIndexedToUnchecked(denseTarget, f, sourceRowIndex, targetRowIndex, rowCount, sourceColumnIndex, targetColumnIndex, columnCount, zeros, existingData);
return;
}
// TODO: Proper Sparse Implementation
// FALL BACK
if (existingData == ExistingData.Clear)
{
target.ClearUnchecked(targetRowIndex, rowCount, targetColumnIndex, columnCount);
}
if (sourceRowIndex == sourceColumnIndex)
{
int targetRow = targetRowIndex;
int targetColumn = targetColumnIndex;
for (var i = 0; i < Math.Min(columnCount, rowCount); i++)
{
target.At(targetRow, targetColumn, f(targetRow, targetColumn, Data[sourceRowIndex + i]));
targetRow++;
targetColumn++;
}
}
else if (sourceRowIndex > sourceColumnIndex && sourceColumnIndex + columnCount > sourceRowIndex)
{
// column by column, but skip resulting zero columns at the beginning
int columnInit = sourceRowIndex - sourceColumnIndex;
int targetRow = targetRowIndex;
int targetColumn = targetColumnIndex + columnInit;
for (var i = 0; i < Math.Min(columnCount - columnInit, rowCount); i++)
{
target.At(targetRow, targetColumn, f(targetRow, targetColumn, Data[sourceRowIndex + i]));
targetRow++;
targetColumn++;
}
}
else if (sourceRowIndex < sourceColumnIndex && sourceRowIndex + rowCount > sourceColumnIndex)
{
// row by row, but skip resulting zero rows at the beginning
int rowInit = sourceColumnIndex - sourceRowIndex;
int targetRow = targetRowIndex + rowInit;
int targetColumn = targetColumnIndex;
for (var i = 0; i < Math.Min(columnCount, rowCount - rowInit); i++)
{
target.At(targetRow, targetColumn, f(targetRow, targetColumn, Data[sourceColumnIndex + i]));
targetRow++;
targetColumn++;
}
}
}
