package mc2
Install
Dune Dependency
Authors
Maintainers
Sources
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doc/mc2.core/Mc2_core/Term/Set/index.html
Module Term.Set
Source
include Set.S with type elt = Mc2_core__.Solver_types.term
Sets
The type of the set elements.
The type of sets.
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
).
Set difference: diff s1 s2
contains the elements of s1
that are not in s2
.
Elements
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
.
Return the smallest element of the given set (with respect to the Ord.compare
ordering), or raise Not_found
if the set is empty.
Return one element of the given set, or raise Not_found
if the set is empty. Which element is chosen is unspecified, but equal elements will be chosen for equal sets.
Searching
find x s
returns the element of s
equal to x
(according to Ord.compare
), or raise Not_found
if no such element exists.
Traversing
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.
fold f s init
computes (f xN ... (f x2 (f x1 init))...)
, where x1 ... xN
are the elements of s
, in increasing order.
Transforming
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
.)
filter f s
returns the set of all elements in s
that satisfy predicate f
. If f
satisfies every element in s
, s
is returned unchanged (the result of the function is then physically equal to s
).
filter_map f s
returns the set of all v
such that f x = Some v
for some element x
of s
.
For example,
filter_map (fun n -> if n mod 2 = 0 then Some (n / 2) else None) s
is the set of halves of the even elements of s
.
If no element of s
is changed or dropped by f
(if f x = Some x
for each element x
), then s
is returned unchanged: the result of the function is then physically equal to s
.
partition f s
returns a pair of sets (s1, s2)
, where s1
is the set of all the elements of s
that satisfy the predicate f
, and s2
is the set of all the elements of s
that do not satisfy f
.
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
.
Predicates and comparisons
equal s1 s2
tests whether the sets s1
and s2
are equal, that is, contain equal elements.
Total ordering between sets. Can be used as the ordering function for doing sets of sets.
for_all f s
checks if all elements of the set satisfy the predicate f
.
exists f s
checks if at least one element of the set satisfies the predicate f
.
Converting
of_list l
creates a set from a list of elements. This is usually more efficient than folding add
over the list, except perhaps for lists with many duplicated elements.
to_seq_from x s
iterates on a subset of the elements of s
in ascending order, from x
or above.
Safe version of find_first
.
find_first_map f s
find the minimum element x
of s
such that f x = Some y
and return Some y
. Otherwise returns None
.
find_last_map f s
find the maximum element x
of s
such that f x = Some y
and return Some y
. Otherwise returns None
.
Build a set from the given iter
of elements.
to_iter t
converts the set t
to a iter
of the elements.
val to_string :
?start:string ->
?stop:string ->
?sep:string ->
(elt -> string) ->
t ->
string
Print the set in a string
val pp :
?pp_start:unit CCSet.printer ->
?pp_stop:unit CCSet.printer ->
?pp_sep:unit CCSet.printer ->
elt CCSet.printer ->
t CCSet.printer
Print the set.