package preface

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Parameters

Signature

type 'a t = 'a C.t

The type held by Foldable.

val reduce : (module Preface_specs.Monoid.CORE with type t = 'm) -> 'm t -> 'm

Reduce a Foldable using combine of the given monoid.

val fold_map : (module Preface_specs.Monoid.CORE with type t = 'm) -> ('a -> 'm) -> 'a t -> 'm

Same of CORE.fold_map' but using a monoid module instead of giving explicitly neutral and combine.

val fold_left : ('a -> 'b -> 'a) -> 'a -> 'b t -> 'a

Same of List.fold_left for Foldable.

val for_all : ('a -> bool) -> 'a t -> bool

Checks if all elements of the Foldable satisfy the given predicate.

val exists : ('a -> bool) -> 'a t -> bool

Checks if at least on element of the Foldable satisfy the given predicate.

val length : 'a t -> int

Count the number of elements in the Foldable.

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