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Library
Module
Module type
Parameter
Class
Class type
Library
Module
Module type
Parameter
Class
Class type
Sets of repositories.
include Asetmap.Set.S with type elt = t
include Set.S with type elt = t
type elt = t
The type of the set elements.
val empty : t
The empty set.
val is_empty : t -> bool
Test whether a set is empty or not.
add x s
returns a set containing all elements of s
, plus x
. If x
was already in s
, s
is returned unchanged (the result of the function is then physically equal to s
).
remove x s
returns a set containing all elements of s
, except x
. If x
was not in s
, s
is returned unchanged (the result of the function is then physically equal to s
).
Total ordering between sets. Can be used as the ordering function for doing sets of sets.
equal s1 s2
tests whether the sets s1
and s2
are equal, that is, contain equal elements.
iter f s
applies f
in turn to all elements of s
. The elements of s
are presented to f
in increasing order with respect to the ordering over the type of the elements.
map f s
is the set whose elements are f a0
,f a1
... f
aN
, where a0
,a1
...aN
are the elements of s
.
The elements are passed to f
in increasing order with respect to the ordering over the type of the elements.
If no element of s
is changed by f
, s
is returned unchanged. (If each output of f
is physically equal to its input, the returned set is physically equal to s
.)
fold f s a
computes (f xN ... (f x2 (f x1 a))...)
, where x1 ... xN
are the elements of s
, in increasing order.
for_all p s
checks if all elements of the set satisfy the predicate p
.
exists p s
checks if at least one element of the set satisfies the predicate p
.
filter p s
returns the set of all elements in s
that satisfy predicate p
. If p
satisfies every element in s
, s
is returned unchanged (the result of the function is then physically equal to s
).
partition p s
returns a pair of sets (s1, s2)
, where s1
is the set of all the elements of s
that satisfy the predicate p
, and s2
is the set of all the elements of s
that do not satisfy p
.
val cardinal : t -> int
Return the number of elements of a set.
Return the list of all elements of the given set. The returned list is sorted in increasing order with respect to the ordering Ord.compare
, where Ord
is the argument given to Set.Make
.
split x s
returns a triple (l, present, r)
, where l
is the set of elements of s
that are strictly less than x
; r
is the set of elements of s
that are strictly greater than x
; present
is false
if s
contains no element equal to x
, or true
if s
contains an element equal to x
.
choose s
is an element of s
or None
is s
empty. The chosen element is equal for equal sets.
val dump : (Format.formatter -> elt -> unit) -> Format.formatter -> t -> unit
dump pp_elt ppf s
prints an unspecified representation of s
on ppf
using pp_elt
to print elements.