RFR (M) 8059461: Refactor IndexSet for better performance (preliminary)

[John Rose]

On Nov 6, 2014, at 12:30 PM, John Rose <john.r.rose at oracle.com> wrote:

> Original source file was chaitin.hpp.

Correction: live.hpp.

//------------------------------List16Set--------------------------------------
// An abbreviated implementation of Set.  Implementation is a list of shorts.
// Inserting and deleting is linear (ouch)!  Only suitable when lists are
// expected to be short.
struct List16Set {
  uint16 _cnt, _max;
  uint16* _data;
...
};

(That's enough software archaeology for today!)
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