private void expand()
{
var na = new KeyPaireF[values.Length + 8 * values.Length / 6];
System.Array.Copy(values, 0, na, 0, values.Length);
values = na;
}
private void expand(int by)
{
var na = new KeyPaireF[values.Length + by + 8];
Array.Copy(values, 0, na, 0, values.Length);
values = na;
}
public void Add(KeyPaireF v)
{
if (index >= values.Length)
{
expand();
}
values[++index] = v;
}