mlemanczyk/Recyclable.Collections
1
0 Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

RecyclableListExtensions.CopyTo fixed to copy items from the last block in the range

Browse Source
This commit is contained in:
Marek Lemańczyk committed 2023-03-11 22:12:50 +01:00
1 parent 9b9b683462
commit 1ea0af8d34
1 file changed
+4 -4
Download Patch File Download Diff File Expand all files Collapse all files
Recyclable.Collections/RecyclableListExtensions.cs
+4 -4
View File
@@ -17,12 +17,12 @@ namespace Recyclable.Collections
public static void CopyTo<T>(this T[][] sourceMemoryBlocks, long startingIndex, int blockSize, long itemsCount, T[] destinationArray, int destinationArrayIndex) public static void CopyTo<T>(this T[][] sourceMemoryBlocks, long startingIndex, int blockSize, long itemsCount, T[] destinationArray, int destinationArrayIndex)
{ {
Memory<T> sourceBlockMemory; Span<T> sourceBlockMemory;
Memory<T> destinationArrayMemory; Span<T> destinationArrayMemory;
int startingBlockIndex = (int)(startingIndex / blockSize); int startingBlockIndex = (int)(startingIndex / blockSize);
int lastBlockIndex = (int)((itemsCount / blockSize) + (itemsCount - (itemsCount / blockSize) > 0 ? 1 : 0)) - 1; int lastBlockIndex = (int)((itemsCount / blockSize) + (itemsCount - (itemsCount / blockSize) > 0 ? 1 : 0)) - 1;
Span<T[]> sourceMemoryBlocksSpan = new(sourceMemoryBlocks, startingBlockIndex, lastBlockIndex - startingBlockIndex + 1); Span<T[]> sourceMemoryBlocksSpan = new(sourceMemoryBlocks, startingBlockIndex, lastBlockIndex - startingBlockIndex + 1);
destinationArrayMemory = new Memory<T>(destinationArray, destinationArrayIndex, destinationArray.Length); destinationArrayMemory = new Span<T>(destinationArray, destinationArrayIndex, destinationArray.Length - destinationArrayIndex);
int memoryBlockIndex; int memoryBlockIndex;
for (memoryBlockIndex = 0; memoryBlockIndex < lastBlockIndex; memoryBlockIndex++) for (memoryBlockIndex = 0; memoryBlockIndex < lastBlockIndex; memoryBlockIndex++)
{ {
@@ -33,7 +33,7 @@ namespace Recyclable.Collections
if (itemsCount % blockSize > 0) if (itemsCount % blockSize > 0)
{ {
sourceBlockMemory = new(sourceMemoryBlocksSpan[^1], 0, (int)(itemsCount % blockSize)); sourceBlockMemory = new(sourceMemoryBlocksSpan[lastBlockIndex], 0, (int)(itemsCount % blockSize));
sourceBlockMemory.CopyTo(destinationArrayMemory); sourceBlockMemory.CopyTo(destinationArrayMemory);
} }
} }