public override int CopyTo(int sourceOffset, PageCursor targetCursor, int targetOffset, int lengthInBytes)
{
int sourcePageSize = CurrentPageSize;
int targetPageSize = targetCursor.CurrentPageSize;
if (targetCursor.GetType() != typeof(MuninnWritePageCursor))
{
throw new System.ArgumentException("Target cursor must be writable");
}
if (sourceOffset >= 0 & targetOffset >= 0 & sourceOffset < sourcePageSize & targetOffset < targetPageSize & lengthInBytes >= 0)
{
MuninnPageCursor cursor = ( MuninnPageCursor )targetCursor;
int remainingSource = sourcePageSize - sourceOffset;
int remainingTarget = targetPageSize - targetOffset;
int bytes = Math.Min(lengthInBytes, Math.Min(remainingSource, remainingTarget));
UnsafeUtil.copyMemory(_pointer + sourceOffset, cursor._pointer + targetOffset, bytes);
return(bytes);
}
_outOfBounds = true;
return(0);
}