An implementation of the confluently persistent vector data
structure introduced in Bagwell, Rompf, "RRB-Trees: Efficient
Immutable Vectors", EPFL-REPORT-169879, September, 2011.

RRB-Trees build upon Clojure's PersistentVectors, adding logarithmic
time concatenation and slicing.

The main API entry points are clojure.core.rrb-vector/catvec,
performing vector concatenation, and clojure.core.rrb-vector/subvec,
which produces a new vector containing the appropriate subrange of
the input vector (in contrast to clojure.core/subvec, which returns
a view on the input vector).

core.rrb-vector's vectors can store objects or unboxed primitives.
The implementation allows for seamless interoperability with
clojure.lang.PersistentVector, clojure.core.Vec (more commonly known
as gvec) and clojure.lang.APersistentVector$SubVector instances:
clojure.core.rrb-vector/catvec and clojure.core.rrb-vector/subvec
convert their inputs to clojure.core.rrb-vector.rrbt.Vector
instances whenever necessary (this is a very fast constant time
operation for PersistentVector and gvec; for SubVector it is O(log
n), where n is the size of the underlying vector).

clojure.core.rrb-vector also exports its own versions of vector and
vector-of and vec which always produce
clojure.core.rrb-vector.rrbt.Vector instances. Note that vector-of
accepts :object as one of the possible type arguments, in addition
to keywords naming primitive types.

An implementation of the confluently persistent vector data
structure introduced in Bagwell, Rompf, "RRB-Trees: Efficient
Immutable Vectors", EPFL-REPORT-169879, September, 2011.

RRB-Trees build upon Clojure's PersistentVectors, adding logarithmic
time concatenation and slicing.

The main API entry points are clojure.core.rrb-vector/catvec,
performing vector concatenation, and clojure.core.rrb-vector/subvec,
which produces a new vector containing the appropriate subrange of
the input vector (in contrast to cljs.core/subvec, which returns a
view on the input vector).

The implementation allows for seamless interoperability with
cljs.core/PersistentVector and cljs.core.Subvec instances:
clojure.core.rrb-vector/catvec and clojure.core.rrb-vector/subvec
convert their inputs to clojure.core.rrb-vector.rrbt/Vector
instances whenever necessary (this is a very fast constant time
operation for PersistentVector; for Subvec it is O(log n), where n
is the size of the underlying vector).

clojure.core.rrb-vector also exports its own versions of vector and
vec which always produce clojure.core.rrb-vector.rrbt.Vector
instances.