clojure.core/nat-int?

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Type: function Added: Clojure 1.9 Examples: 2 Runnable: 1

([x])

Return true if x is a non-negative fixed precision integer

Examples

by larrychristensen on 2017-05-17 . May have evaluation errors. ▶

(nat-int? 0) true (nat-int? 1) true (nat-int? -1) false ;; especially useful for specs (require '[clojure.spec :as spec]) nil (spec/def quantity nat-int?) user/quantity (spec/def ::quantity nat-int?) :user/quantity (spec/valid? ::quantity -1) false

by svenschoenung on 2017-05-25 ▶

(nat-int? 0) ;;=> true (nat-int? 1) ;;=> true (nat-int? 9223372036854775807) ;;=> true ;;;; false for negative values (nat-int? -1) ;;=> false ;;;; false for decimal values (nat-int? 0.0) ;;=> false (nat-int? 1.0) ;;=> false (nat-int? 1/2) ;;=> false ;;;; false for BigInt values (nat-int? 0N) ;;=> false (nat-int? 1N) ;;=> false (nat-int? 9223372036854775808) ;;=> false

See also

• clojure.core/pos-int?
• clojure.core/neg-int?
• clojure.core/int? (0)

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