public SlicedMemoryOwner(IMemoryOwner <T> memoryOwner, int start, int length)
{
if (memoryOwner is null)
{
throw new ArgumentNullException(nameof(memoryOwner));
}
if (memoryOwner is SlicedMemoryOwner <T> slicedMemoryOwner)
{
this = new SlicedMemoryOwner <T>(slicedMemoryOwner, start, length);
return;
}
var memoryLenght = memoryOwner.Memory.Length;
if (start < 0 || start > memoryLenght)
{
throw new ArgumentOutOfRangeException(nameof(start));
}
if (length > memoryLenght - start)
{
throw new ArgumentOutOfRangeException(nameof(length));
}
_memoryOwner = memoryOwner;
_start = start;
_length = length;
}
public SlicedMemoryOwner(SlicedMemoryOwner <T> memoryOwner, int start)
{
var memoryLenght = memoryOwner.Memory.Length;
if (start < 0 || start > memoryLenght)
{
throw new ArgumentOutOfRangeException(nameof(start));
}
_memoryOwner = memoryOwner._memoryOwner;
_start = start + memoryOwner._start;
_length = memoryOwner._length;
}