:: [a] -package:numeric-prelude -package:hdaemonize

Epsilon, the empty word (or list) (ε) = [] (U+3B5, GREEK SMALL LETTER EPSILON)

Look up the previous accumulation

runAccum w look = return (w, w)
runAccum w (look >>= continuation) = runAccum w (continuation w)

Fail the current branch, and prevent backtracking within the nearest enclosing call (if any). Contrast with empty, which fails the current branch but allows backtracking.

cutfail >>= k = cutfail

cutfail <|> m = cutfail

Abort the computation. empty annihilates >>=:

empty >>= k = empty

Retrieve the environment value.

runReader a (ask >>= k) = runReader a (k a)

Get the current state value.

runState a (get >>= k) = runState a (k a)

Lifted version of exitFailure.

>>> exitFailure
*** Exception: ExitFailure 1

Lifted version of exitSuccess.

>>> exitSuccess
*** Exception: ExitSuccess

Lifted version of "System.Exit.exitFailure". @since 0.1.9.0.

Lifted version of "System.Exit.exitSuccess". @since 0.1.9.0.

Lifted version of exitFailure.

Lifted version of exitSuccess.

O(1) The empty vector.

O(1) Empty vector

This global constant is an infinite list of prime numbers. It is generated by a lazy wheel sieve and shared across the whole program run. If you are concerned about the memory requirements of sharing many primes you can call the function wheelSieve directly.