cljs.math/negate-exact

function

since v1.11.50

Edit

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Source docstring:

Returns the negation of a, throws ArithmeticException on overflow. 

(defn ^number negate-exact
  {:added "1.11.10"}
  [a]
  (if (or (> a js/Number.MAX_SAFE_INTEGER) (< a js/Number.MIN_SAFE_INTEGER))
    (throw (ex-info "Integer overflow" {:fn "negate-exact"}))
    (- a)))

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