7 Commits (edc52a67f0351e48e1663d12fece2da413d617c5)

Author	SHA1	Message	Date
Matthew Wild	e45610ce6e	Add copyright header to those files missing one	17 years ago
Matthew Wild	0d98ee54b5	util.set: Add set.xor() to get a set consisting of items not in both sets	17 years ago
Matthew Wild	901af1535f	util.set: Add set:empty() to discover if the set is the empty set	17 years ago
Matthew Wild	34a4b98cf6	util.set: Add metatable to sets to allow +, -, /, ==, tostring and to double as iterators	17 years ago
Matthew Wild	db2a808e14	util.set: Rename private items container, optimise set.difference() and add set.intersection()	17 years ago
Matthew Wild	0cb055053f	util.set: Fix to make constructor work, and functions defined correctly	17 years ago
Matthew Wild	7f87706ee4	util.set: New util library	17 years ago