Optics.Extra.Internal.Vector

Documentation

ordinalNub

Arguments

:: Int

strict upper bound

-> [Int]

ordinals

-> [Int]

unique, in-bound ordinals, in order seen

Return the the subset of given ordinals within a given bound and in order of the first occurrence seen.

Bound: 0 <= x < l

>>> ordinalNub 3 [-1,2,1,4,2,3]
[2,1]