------- Additional Comments From giovannibajo at libero dot it 2004-11-15 19:25 ------- Doesn't the quadraticy come from VEC_unordered_remove? If you have M total edges and you want to remove N of them, the complexity is O(N*M) with vectors, but used to be O(N) with lists.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18499
