Compare key a at index ai with key b at index bi.
Compare key a at index ai with key b at index bi. This determines the order of keys in the tree
The empty key
Starting from a at ai and b at bi, compares elements of a and b until count elements have been compared or until a difference has been found.
An identity function for keys that can perform interning as an optimization
The size of a key
Constructs a new Eq
instance for type B
where 2 elements are
equivalent iff eqv(f(x), f(y))
.
Constructs a new Eq
instance for type B
where 2 elements are
equivalent iff eqv(f(x), f(y))
.