// COLUMN COPY
internal override void CopySubColumnToUnchecked(VectorStorage <T> target, int columnIndex,
int sourceRowIndex, int targetRowIndex, int rowCount, ExistingData existingData)
{
if (existingData == ExistingData.Clear)
{
target.Clear(targetRowIndex, rowCount);
}
if (columnIndex >= sourceRowIndex && columnIndex < sourceRowIndex + rowCount && columnIndex < Data.Length)
{
target.At(columnIndex - sourceRowIndex + targetRowIndex, Data[columnIndex]);
}
}
// SUB-VECTOR COPY
internal override void CopySubVectorToUnchecked(VectorStorage <T> target,
int sourceIndex, int targetIndex, int count, ExistingData existingData)
{
var sparseTarget = target as SparseVectorStorage <T>;
if (sparseTarget != null)
{
CopySubVectorToUnchecked(sparseTarget, sourceIndex, targetIndex, count, existingData);
return;
}
// FALL BACK
var offset = targetIndex - sourceIndex;
var sourceFirst = Array.BinarySearch(Indices, 0, ValueCount, sourceIndex);
var sourceLast = Array.BinarySearch(Indices, 0, ValueCount, sourceIndex + count - 1);
if (sourceFirst < 0)
{
sourceFirst = ~sourceFirst;
}
if (sourceLast < 0)
{
sourceLast = ~sourceLast - 1;
}
if (existingData == ExistingData.Clear)
{
target.Clear(targetIndex, count);
}
for (int i = sourceFirst; i <= sourceLast; i++)
{
target.At(Indices[i] + offset, Values[i]);
}
}
