<param name="firstCodePoint">The first code point in the range.</param>
<param name="length">The number of code points in the range.</param>
<exception cref="T:System.ArgumentOutOfRangeException">
- <paramref name="firstCodePoint" /> is less than zero or greater than 0xFFFF.
--or-
+ <paramref name="firstCodePoint" /> is less than zero or greater than 0xFFFF.
+-or-
<paramref name="length" /> is less than zero.
-or-
<paramref name="firstCodePoint" /> plus <paramref name="length" /> is greater than 0xFFFF.</exception>