Module Set.Make
Contents
Instructions: Use this module in your project
In the IDE (CLion, Visual Studio Code, Xcode, etc.) you use for your DkSDK project:
Add the following to your project's
dependencies/CMakeLists.txt:DkSDKProject_DeclareAvailable(ocaml CONSTRAINT "= 4.14.0" FINDLIBS str unix runtime_events threads dynlink) DkSDKProject_MakeAvailable(ocaml)Add the
Findlib::ocamllibrary to any desired targets insrc/*/CMakeLists.txt:target_link_libraries(YourPackage_YourLibraryName # ... existing libraries, if any ... Findlib::ocaml)Click your IDE's
Buildbutton
Not using DkSDK?
FIRST, do one or all of the following:
Run:
opam install ocaml.4.14.0Edit your
dune-projectand add:(package (name YourExistingPackage) (depends ; ... existing dependenices ... (ocaml (>= 4.14.0))))Then run:
dune build *.opam # if this fails, run: dune buildEdit your
<package>.opamfile and add:depends: [ # ... existing dependencies ... "ocaml" {>= "4.14.0"} ]Then run:
opam install . --deps-only
FINALLY, add the library to any desired (library)and/or (executable) targets in your **/dune files:
(library
(name YourLibrary)
; ... existing library options ...
(libraries
; ... existing libraries ...
))
(executable
(name YourExecutable)
; ... existing executable options ...
(libraries
; ... existing libraries ...
))Parameters
moduleOrd:OrderedType
Signature
typeelt`` =Ord.t
The type of the set elements.
typet`` =Set.Make(Ord).t
The type of sets.
valempty :t
The empty set.
valis_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).
-
before 4.03
Physical equality was not ensured.
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).
-
before 4.03
Physical equality was not ensured.
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.)
- since 4.04.0
fold ~f s init computes (f xN ... (f x2 (f x1 init))...), where
x1 ... xN are the elements of s, in increasing order.
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.
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).
-
before 4.03
Physical equality was not ensured.
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) sis 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.
- since 4.11.0
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.
valcardinal :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
Stdlib.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 the smallest element of the given set (with respect to the
Ord.compare ordering), or None if the set is empty.
- since 4.05
Same as min_elt_opt, but returns the largest
element of the given set.
- since 4.05
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.
Return one element of the given set, or None if the set is empty.
Which element is chosen is unspecified, but equal elements will be
chosen for equal sets.
- since 4.05
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.
find x s returns the element of s equal to x (according to
Ord.compare), or raise Not_found if no such element exists.
- since 4.01.0
find_opt x s returns the element of s equal to x (according to
Ord.compare), or None if no such element exists.
- since 4.05
find_first ~f s, where f is a monotonically increasing function,
returns the lowest element e of s such that f e, or raises
Not_found if no such element exists.
For example, find_first (fun e -> Ord.compare e x >= 0) s will return
the first element e of s where Ord.compare e x >= 0 (intuitively:
e >= x), or raise Not_found if x is greater than any element of
s.
- since 4.05
find_first_opt ~f s, where f is a monotonically increasing function,
returns an option containing the lowest element e of s such that
f e, or None if no such element exists.
- since 4.05
find_last ~f s, where f is a monotonically decreasing function,
returns the highest element e of s such that f e, or raises
Not_found if no such element exists.
- since 4.05
find_last_opt ~f s, where f is a monotonically decreasing function,
returns an option containing the highest element e of s such that
f e, or None if no such element exists.
- since 4.05
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.
- since 4.02.0
Iterators
to_seq_from x s iterates on a subset of the elements of s in
ascending order, from x or above.
- since 4.07
