scanr -bytestring -base
O(n) scanr is the right-to-left dual of scanl. Performs replacement on invalid scalar values.
> scanr f v == reverse . scanl (flip f) v . reverse
O(n) scanr1 is a variant of scanr that has no starting value argument. Performs replacement on invalid scalar values.
O(n) scanr1 is a variant of scanr that has no starting value argument. Subject to fusion. Performs replacement on invalid scalar values.
scanr1 is a variant of scanr that has no starting value argument.