RedBlackTree.toHash
size_t toHash() nothrow @safeGenerates a hash for the tree. Note that with a custom comparison function it may not hold that if two rbtrees are equal, the hashes of the trees will be equal.
size_t toHash() nothrow @safeGenerates a hash for the tree. Note that with a custom comparison function it may not hold that if two rbtrees are equal, the hashes of the trees will be equal.