interval-arithmetic
An implementation of an algebraically closed interval system of the extended real number set
range-group
Data structure to hold a collection of ranges. It has builtin support for numbers, dates, and strings, fast O(log(log(N))) bounds, and provides comprehensive set operations.
numberset
Small library to perform set operations on number sets
unicodeset
UnicodeSet implementation: a string pattern akin to RegExp for succinctly defining a set of unicode characters and strings