Hi! I had a question while reading Functional Programming in Scala book.
The following code is Exercise 2:
// Exercise 2: Implement a polymorphic function to check whether
// an `Array[A]` is sorted
def isSorted[A](as: Array[A], gt: (A,A) => Boolean): Boolean = {
@annotation.tailrec
def go(n: Int): Boolean =
if (n >= as.length-1) true
else if (gt(as(n), as(n+1))) false
else go(n+1)
go(0)
}
In the above code, Generic typ parameter(A) is displayed. How should I
express it in clojure spec?
(defn sorted-coll? [as ordered-fn?]
(loop [coll (seq as)]
(cond
(= 1 (count coll)) true
(not (ordered-fn? (first coll) (second coll))) false
:else (recur (rest coll)))))
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