CentOS 7.0 - man page for map.s (centos section 3)

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Map.S(3)				  OCaml library 				 Map.S(3)

NAME
       Map.S - Output signature of the functor Map.Make.

Module type
       Module type   Map.S

Documentation
       Module type S
	= sig end

       Output signature of the functor Map.Make .

       type key

       The type of the map keys.

       type +'a t

       The type of maps from type key to type 'a .

       val empty : 'a t

       The empty map.

       val is_empty : 'a t -> bool

       Test whether a map is empty or not.

       val mem : key -> 'a t -> bool

       mem x m returns true if m contains a binding for x , and false otherwise.

       val add : key -> 'a -> 'a t -> 'a t

       add  x y m returns a map containing the same bindings as m , plus a binding of x to y . If
       x was already bound in m , its previous binding disappears.

       val singleton : key -> 'a -> 'a t

       singleton x y returns the one-element map that contains a binding y for x .

       Since 3.12.0

       val remove : key -> 'a t -> 'a t

       remove x m returns a map containing the same bindings as m , except for x which is unbound
       in the returned map.

       val merge : (key -> 'a option -> 'b option -> 'c option) -> 'a t -> 'b t -> 'c t

       merge f m1 m2 computes a map whose keys is a subset of keys of m1 and of m2 . The presence
       of each such binding, and the corresponding value, is determined with the function f .

       Since 3.12.0

       val compare : ('a -> 'a -> int) -> 'a t -> 'a t -> int

       Total ordering between maps.  The first argument is a total ordering used to compare  data
       associated with equal keys in the two maps.

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

       equal  cmp  m1  m2 tests whether the maps m1 and m2 are equal, that is, contain equal keys
       and associate them with equal data.  cmp is the equality predicate  used  to  compare  the
       data associated with the keys.

       val iter : (key -> 'a -> unit) -> 'a t -> unit

       iter  f	m applies f to all bindings in map m .	f receives the key as first argument, and
       the associated value as second argument.  The bindings are passed to f in increasing order
       with respect to the ordering over the type of the keys.

       val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b

       fold  f	m  a computes (f kN dN ... (f k1 d1 a)...)  , where k1 ... kN are the keys of all
       bindings in m (in increasing order), and d1 ... dN are the associated data.

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

       for_all p m checks if all the bindings of the map satisfy the predicate p .

       Since 3.12.0

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

       exists p m checks if at least one binding of the map satisfy the predicate p .

       Since 3.12.0

       val filter : (key -> 'a -> bool) -> 'a t -> 'a t

       filter p m returns the map with all the bindings in m that satisfy predicate p .

       Since 3.12.0

       val partition : (key -> 'a -> bool) -> 'a t -> 'a t * 'a t

       partition p m returns a pair of maps (m1, m2) , where m1 contains all the  bindings  of	s
       that  satisfy  the  predicate p , and m2 is the map with all the bindings of s that do not
       satisfy p .

       Since 3.12.0

       val cardinal : 'a t -> int

       Return the number of bindings of a map.

       Since 3.12.0

       val bindings : 'a t -> (key * 'a) list

       Return the list of all bindings of the given map.  The returned list is sorted in increas-
       ing  order  with  respect to the ordering Ord.compare , where Ord is the argument given to
       Map.Make .

       Since 3.12.0

       val min_binding : 'a t -> key * 'a

       Return the smallest binding of the given map (with respect to the  Ord.compare  ordering),
       or raise Not_found if the map is empty.

       Since 3.12.0

       val max_binding : 'a t -> key * 'a

       Same as Map.S.min_binding , but returns the largest binding of the given map.

       Since 3.12.0

       val choose : 'a t -> key * 'a

       Return one binding of the given map, or raise Not_found if the map is empty. Which binding
       is chosen is unspecified, but equal bindings will be chosen for equal maps.

       Since 3.12.0

       val split : key -> 'a t -> 'a t * 'a option * 'a t

       split x m returns a triple (l, data, r) , where l is the map with all the  bindings  of	m
       whose  key  is strictly less than x ; r is the map with all the bindings of m whose key is
       strictly greater than x ; data is None if m contains no binding for x , or  Some  v  if	m
       binds v to x .

       Since 3.12.0

       val find : key -> 'a t -> 'a

       find  x	m  returns the current binding of x in m , or raises Not_found if no such binding
       exists.

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

       map f m returns a map with same domain as m , where the associated value a of all bindings
       of  m  has  been  replaced  by the result of the application of f to a .  The bindings are
       passed to f in increasing order with respect to the ordering over the type of the keys.

       val mapi : (key -> 'a -> 'b) -> 'a t -> 'b t

       Same as Map.S.map , but the function receives as arguments both the key and the associated
       value for each binding of the map.

OCamldoc				    2014-06-09					 Map.S(3)
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