When Overflow Is Desired
clojure
Written August 21, 2015
If you try to add two MAX_VALUE Longs, Clojure is kind enough to warn you.
> (+ Long/MAX_VALUE Long/MAX_VALUE)
ArithmeticException integer overflow clojure.lang.Numbers.throwIntOverflow (Numbers.java:1424)
However, when overflow is desired, you can use the unchecked operators
(e.g. unchecked-add).
> (unchecked-add Long/MAX_VALUE Long/MAX_VALUE)
-2
See also unchecked-subtract and unchecked-multiply.