+

added
1.2

ns
clojure.core

type
function

(+) (+ x) (+ x y) (+ x y & more)

Returns the sum of nums. (+) returns 0. Does not auto-promote
longs, will throw on overflow. See also: +'

                (+)
;;=> 0

(+ 1)
;;=> 1

(+ -10)
;;=> -10

(+ 1 2)
;;=> 3

(+ 1 2 3)
;;=> 6

(apply + (range 10000000000000 10000000001000))
;; ArithmeticException: integer overflow