Same data structure appears in Preston Briggs' 1992 PhD thesis (https://www.cs.utexas.edu/users/mckinley/380C/lecs/briggs-thesis-1992.pdf https://www.cs.utexas.

Same data structure appears in Preston Briggs' 1992 PhD thesis (https://www.cs.utexas.edu/users/mckinley/380C/lecs/briggs-thesis-1992.pdf https://www.cs.utexas.edu/users/mckinley/380C/lecs/briggs-th...). I have used these fast sets many times over the years, but less often than before because they elicit valid but irrelevant warnings from Valgrind due to the (safe) use of uninitialized data.