lists:max_member/3

swipl
- library

max_member(:Pred, -Max, +List) is semidet

True when Max is the largest member according to Pred, which must be a 2-argument callable that behaves like (@=<)/2. Fails if List is empty. The following call is equivalent to max_member/2:

?- max_member(@=<, X, [6,1,8,4]).
X = 8.

See also: - max_list/2 for the maximum of a list of numbers.