private static Pair[] _TempBufferPairs_ToArrayAndClear()
{
var pairs_new = new Pair[_TempBufferPairs.Count];
var it = _TempBufferPairs.GetEnumerator();
for (var i = 0; it.MoveNext(); i++)
{
pairs_new[i] = it.Current;
}
_TempBufferPairs.Clear();
return(pairs_new);
}