Mark E. Shoulson wrote: > back when Unicode officially limited itself to 17 planes instead of > the 65535 planes of full-blown (at the time) ISO-10646.
It was actually 32,768 planes, so that the highest code point would be 0x7FFFFFFF and would fit in a 32-bit signed integer. This was considered important because of the existence of programming languages like Java that did not have unsigned integer types. -- Doug Ewell, CC, ALB | Lakewood, CO, US | ewellic.org
