diff --git a/dev/containers/CCSeq/index.html b/dev/containers/CCSeq/index.html index 97014976..6740b87e 100644 --- a/dev/containers/CCSeq/index.html +++ b/dev/containers/CCSeq/index.html @@ -1,5 +1,5 @@ -CCSeq (containers.CCSeq)

Module CCSeq

Helpers for the standard Seq type

See oseq for a richer API.

type 'a iter = ('a -> unit) -> unit
type 'a gen = unit -> 'a option
type 'a equal = 'a -> 'a -> bool
type 'a ord = 'a -> 'a -> int
type 'a printer = Stdlib.Format.formatter -> 'a -> unit

Basics

include module type of Stdlib.Seq
type 'a t = unit -> 'a node

A sequence xs of type 'a t is a delayed list of elements of type 'a. Such a sequence is queried by performing a function application xs(). This function application returns a node, allowing the caller to determine whether the sequence is empty or nonempty, and in the latter case, to obtain its head and tail.

and +'a node =
  1. | Nil
  2. | Cons of 'a * 'a t

A node is either Nil, which means that the sequence is empty, or Cons (x, xs), which means that x is the first element of the sequence and that xs is the remainder of the sequence.

Consuming sequences

The functions in this section consume their argument, a sequence, either partially or completely:

  • is_empty and uncons consume the sequence down to depth 1. That is, they demand the first argument of the sequence, if there is one.
  • iter, fold_left, length, etc., consume the sequence all the way to its end. They terminate only if the sequence is finite.
  • for_all, exists, find, etc. consume the sequence down to a certain depth, which is a priori unpredictable.

Similarly, among the functions that consume two sequences, one can distinguish two groups:

  • iter2 and fold_left2 consume both sequences all the way to the end, provided the sequences have the same length.
  • for_all2, exists2, equal, compare consume the sequences down to a certain depth, which is a priori unpredictable.

The functions that consume two sequences can be applied to two sequences of distinct lengths: in that case, the excess elements in the longer sequence are ignored. (It may be the case that one excess element is demanded, even though this element is not used.)

None of the functions in this section is lazy. These functions are consumers: they force some computation to take place.

Constructing sequences

The functions in this section are lazy: that is, they return sequences whose elements are computed only when demanded.

Transforming sequences

The functions in this section are lazy: that is, they return sequences whose elements are computed only when demanded.

exception Forced_twice

This exception is raised when a sequence returned by once (or a suffix of it) is queried more than once.

  • since 4.14
val once : 'a t -> 'a t

The sequence once xs has the same elements as the sequence xs.

Regardless of whether xs is ephemeral or persistent, once xs is an ephemeral sequence: it can be queried at most once. If it (or a suffix of it) is queried more than once, then the exception Forced_twice is raised. This can be useful, while debugging or testing, to ensure that a sequence is consumed at most once.

  • raises Forced_twice

    if once xs, or a suffix of it, is queried more than once.

  • since 4.14
val transpose : 'a t t -> 'a t t

If xss is a matrix (a sequence of rows), then transpose xss is the sequence of the columns of the matrix xss.

The rows of the matrix xss are not required to have the same length.

The matrix xss is not required to be finite (in either direction).

The matrix xss must be persistent.

  • since 4.14

Combining sequences

Splitting a sequence into two sequences

val partition_map : ('a -> ('b, 'c) Stdlib.Either.t) -> 'a t -> 'b t * 'c t

partition_map f xs returns a pair of sequences (ys, zs), where:

  • ys is the sequence of the elements y such that f x = Left y, where x ranges over xs;
  • zs is the sequence of the elements z such that f x = Right z, where x ranges over xs.

partition_map f xs is equivalent to a pair of filter_map Either.find_left (map f xs) and filter_map Either.find_right (map f xs).

Querying either of the sequences returned by partition_map f xs causes xs to be queried. Therefore, querying both of them causes xs to be queried twice. Thus, xs must be persistent and cheap. If that is not the case, use partition_map f (memoize xs).

  • since 4.14
val partition : ('a -> bool) -> 'a t -> 'a t * 'a t

partition p xs returns a pair of the subsequence of the elements of xs that satisfy p and the subsequence of the elements of xs that do not satisfy p.

partition p xs is equivalent to filter p xs, filter (fun x -> not (p x)) xs.

Consuming both of the sequences returned by partition p xs causes xs to be consumed twice and causes the function f to be applied twice to each element of the list. Therefore, f should be pure and cheap. Furthermore, xs should be persistent and cheap. If that is not the case, use partition p (memoize xs).

  • since 4.14

Converting between sequences and dispensers

A dispenser is a representation of a sequence as a function of type unit -> 'a option. Every time this function is invoked, it returns the next element of the sequence. When there are no more elements, it returns None. A dispenser has mutable internal state, therefore is ephemeral: the sequence that it represents can be consumed at most once.

val of_dispenser : (unit -> 'a option) -> 'a t

of_dispenser it is the sequence of the elements produced by the dispenser it. It is an ephemeral sequence: it can be consumed at most once. If a persistent sequence is needed, use memoize (of_dispenser it).

  • since 4.14
val to_dispenser : 'a t -> unit -> 'a option

to_dispenser xs is a fresh dispenser on the sequence xs.

This dispenser has mutable internal state, which is not protected by a lock; so, it must not be used by several threads concurrently.

  • since 4.14

Sequences of integers

val ints : int -> int t

ints i is the infinite sequence of the integers beginning at i and counting up.

  • since 4.14
val nil : 'a t
val empty : 'a t
val cons : 'a -> 'a t -> 'a t
val singleton : 'a -> 'a t
val init : int -> (int -> 'a) -> 'a t

init n f corresponds to the sequence f 0; f 1; ...; f (n-1).

  • raises Invalid_argument

    if n is negative.

  • since 3.10
val repeat : ?n:int -> 'a -> 'a t

repeat ~n x repeats x n times then stops. If n is omitted, then x is repeated forever.

val forever : (unit -> 'a) -> 'a t

forever f corresponds to the infinite sequence containing all the f ().

  • since 3.10
val cycle : 'a t -> 'a t

Cycle through the iterator infinitely. The iterator shouldn't be empty.

val iterate : ('a -> 'a) -> 'a -> 'a t

iterate f a corresponds to the infinite sequence containing a, f a, f (f a), ...

  • since 3.10
val unfold : ('b -> ('a * 'b) option) -> 'b -> 'a t

unfold f acc calls f acc and:

  • if f acc = Some (x, acc'), yield x, continue with unfold f acc'.
  • if f acc = None, stops.
val is_empty : 'a t -> bool

is_empty xs checks in the sequence xs is empty

val head : 'a t -> 'a option

Head of the list.

val head_exn : 'a t -> 'a

Unsafe version of head.

  • raises Not_found

    if the list is empty.

val tail : 'a t -> 'a t option

Tail of the list.

val tail_exn : 'a t -> 'a t

Unsafe version of tail.

  • raises Not_found

    if the list is empty.

val uncons : 'a t -> ('a * 'a t) option

uncons xs return None if xs is empty other

  • since 3.10
val equal : 'a equal -> 'a t equal

Equality step by step. Eager.

val compare : 'a ord -> 'a t ord

Lexicographic comparison. Eager.

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

Fold on values.

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

Alias for fold

val foldi : ('a -> int -> 'b -> 'a) -> 'a -> 'b t -> 'a

fold_lefti f init xs applies f acc i x where acc is the result of the previous computation or init for the first one, i is the index in the sequence (starts at 0) and x is the element of the sequence.

  • since 3.10
val fold_lefti : ('a -> int -> 'b -> 'a) -> 'a -> 'b t -> 'a

Alias of foldi.

  • since 3.10
val iter : ('a -> unit) -> 'a t -> unit
val iteri : (int -> 'a -> unit) -> 'a t -> unit

Iterate with index (starts at 0).

val length : _ t -> int

Number of elements in the list. Will not terminate if the list if infinite: use (for instance) take to make the list finite if necessary.

val take : int -> 'a t -> 'a t
val take_while : ('a -> bool) -> 'a t -> 'a t
val drop : int -> 'a t -> 'a t
val drop_while : ('a -> bool) -> 'a t -> 'a t
val map : ('a -> 'b) -> 'a t -> 'b t
val mapi : (int -> 'a -> 'b) -> 'a t -> 'b t

Map with index (starts at 0).

val fmap : ('a -> 'b option) -> 'a t -> 'b t
val filter : ('a -> bool) -> 'a t -> 'a t
val append : 'a t -> 'a t -> 'a t
val product_with : ('a -> 'b -> 'c) -> 'a t -> 'b t -> 'c t

Fair product of two (possibly infinite) lists into a new list. Lazy. The first parameter is used to combine each pair of elements.

val map_product : ('a -> 'b -> 'c) -> 'a t -> 'b t -> 'c t

Alias of product_with.

  • since 3.10
val product : 'a t -> 'b t -> ('a * 'b) t

Specialization of product_with producing tuples.

val group : 'a equal -> 'a t -> 'a t t

group eq l groups together consecutive elements that satisfy eq. Lazy. For instance group (=) [1;1;1;2;2;3;3;1] yields [1;1;1]; [2;2]; [3;3]; [1].

val uniq : 'a equal -> 'a t -> 'a t

uniq eq l returns l but removes consecutive duplicates. Lazy. In other words, if several values that are equal follow one another, only the first of them is kept.

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

for_all p [a1; ...; an] checks if all elements of the sequence satisfy the predicate p. That is, it returns (p a1) && ... && (p an) for a non-empty list and true if the sequence is empty. It consumes the sequence until it finds an element not satisfying the predicate.

  • since 3.3
val exists : ('a -> bool) -> 'a t -> bool

exists p [a1; ...; an] checks if at least one element of the sequence satisfies the predicate p. That is, it returns (p a1) || ... || (p an) for a non-empty sequence and false if the list is empty. It consumes the sequence until it finds an element satisfying the predicate.

  • since 3.3
val find : ('a -> bool) -> 'a t -> 'a option

find p [a1; ...; an] return Some ai for the first ai satisfying the predicate p and return None otherwise.

  • since 3.10
val find_map : ('a -> 'b option) -> 'a t -> 'b option

find f [a1; ...; an] return Some (f ai) for the first ai such that f ai = Some _ and return None otherwise.

  • since 3.10
val scan : ('a -> 'b -> 'a) -> 'a -> 'b t -> 'a t

scan f init xs is the sequence containing the intermediate result of fold f init xs.

  • since 3.10
val flat_map : ('a -> 'b t) -> 'a t -> 'b t
val concat_map : ('a -> 'b t) -> 'a t -> 'b t

Alias of flat_map

  • since 3.10
val filter_map : ('a -> 'b option) -> 'a t -> 'b t
val flatten : 'a t t -> 'a t
val concat : 'a t t -> 'a t

Alias of flatten.

  • since 3.10
val range : int -> int -> int t
val (--) : int -> int -> int t

a -- b is the range of integers containing a and b (therefore, never empty).

val (--^) : int -> int -> int t

a -- b is the integer range from a to b, where b is excluded.

Operations on two Collections

val fold2 : ('acc -> 'a -> 'b -> 'acc) -> 'acc -> 'a t -> 'b t -> 'acc

Fold on two collections at once. Stop as soon as one of them ends.

val fold_left2 : ('acc -> 'a -> 'b -> 'acc) -> 'acc -> 'a t -> 'b t -> 'acc

Alias for fold2.

  • since 3.10
val map2 : ('a -> 'b -> 'c) -> 'a t -> 'b t -> 'c t

Map on two collections at once. Stop as soon as one of the arguments is exhausted.

val iter2 : ('a -> 'b -> unit) -> 'a t -> 'b t -> unit

Iterate on two collections at once. Stop as soon as one of them ends.

val for_all2 : ('a -> 'b -> bool) -> 'a t -> 'b t -> bool
val exists2 : ('a -> 'b -> bool) -> 'a t -> 'b t -> bool
val merge : 'a ord -> 'a t -> 'a t -> 'a t

Merge two sorted iterators into a sorted iterator.

val sorted_merge : 'a ord -> 'a t -> 'a t -> 'a t

Alias of merge.

  • since 3.10
val zip : 'a t -> 'b t -> ('a * 'b) t

Combine elements pairwise. Stop as soon as one of the lists stops.

val unzip : ('a * 'b) t -> 'a t * 'b t

Split each tuple in the list.

val split : ('a * 'b) t -> 'a t * 'b t

Alias of unzip.

  • since 3.10
val zip_i : 'a t -> (int * 'a) t

zip_i seq zips the index of each element with the element itself.

  • since 3.8

Misc

val sort : cmp:'a ord -> 'a t -> 'a t

Eager sort. Require the iterator to be finite. O(n ln(n)) time and space.

val sort_uniq : cmp:'a ord -> 'a t -> 'a t

Eager sort that removes duplicate values. Require the iterator to be finite. O(n ln(n)) time and space.

val memoize : 'a t -> 'a t

Avoid recomputations by caching intermediate results.

Fair Combinations

val interleave : 'a t -> 'a t -> 'a t

Fair interleaving of both streams.

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

Fair version of flat_map.

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

Fair version of (<*>).

Implementations

val return : 'a -> 'a t
val pure : 'a -> 'a t
val (>>=) : 'a t -> ('a -> 'b t) -> 'b t
val (>|=) : 'a t -> ('a -> 'b) -> 'b t
val (<*>) : ('a -> 'b) t -> 'a t -> 'b t
val (>>-) : 'a t -> ('a -> 'b t) -> 'b t

Infix version of fair_flat_map.

val (<.>) : ('a -> 'b) t -> 'a t -> 'b t

Infix version of fair_app.

Infix operators

module Infix : sig ... end
module type MONAD = sig ... end
module Traverse (M : MONAD) : sig ... end

Conversions

val of_list : 'a list -> 'a t
val to_list : 'a t -> 'a list

Gather all values into a list.

val of_array : 'a array -> 'a t

Iterate on the array.

val to_array : 'a t -> 'a array

Convert into array.

val to_rev_list : 'a t -> 'a list

Convert to a list, in reverse order. More efficient than to_list.

val to_iter : 'a t -> 'a iter
val to_gen : 'a t -> 'a gen
val of_gen : 'a gen -> 'a t

of_gen g consumes the generator and caches intermediate results.

val of_string : string -> char t

Iterate on characters.

  • since 3.7

IO

val pp : +CCSeq (containers.CCSeq)

Module CCSeq

Helpers for the standard Seq type

See oseq for a richer API.

  • since 3.0
type 'a iter = ('a -> unit) -> unit
type 'a gen = unit -> 'a option
type 'a equal = 'a -> 'a -> bool
type 'a ord = 'a -> 'a -> int
type 'a printer = Stdlib.Format.formatter -> 'a -> unit

Basics

type 'a t = unit -> 'a node

A sequence xs of type 'a t is a delayed list of elements of type 'a. Such a sequence is queried by performing a function application xs(). This function application returns a node, allowing the caller to determine whether the sequence is empty or nonempty, and in the latter case, to obtain its head and tail.

and +'a node =
  1. | Nil
  2. | Cons of 'a * 'a t

A node is either Nil, which means that the sequence is empty, or Cons (x, xs), which means that x is the first element of the sequence and that xs is the remainder of the sequence.

Consuming sequences

The functions in this section consume their argument, a sequence, either partially or completely:

  • is_empty and uncons consume the sequence down to depth 1. That is, they demand the first argument of the sequence, if there is one.
  • iter, fold_left, length, etc., consume the sequence all the way to its end. They terminate only if the sequence is finite.
  • for_all, exists, find, etc. consume the sequence down to a certain depth, which is a priori unpredictable.

Similarly, among the functions that consume two sequences, one can distinguish two groups:

  • iter2 and fold_left2 consume both sequences all the way to the end, provided the sequences have the same length.
  • for_all2, exists2, equal, compare consume the sequences down to a certain depth, which is a priori unpredictable.

The functions that consume two sequences can be applied to two sequences of distinct lengths: in that case, the excess elements in the longer sequence are ignored. (It may be the case that one excess element is demanded, even though this element is not used.)

None of the functions in this section is lazy. These functions are consumers: they force some computation to take place.

Constructing sequences

The functions in this section are lazy: that is, they return sequences whose elements are computed only when demanded.

Transforming sequences

The functions in this section are lazy: that is, they return sequences whose elements are computed only when demanded.

exception Forced_twice

This exception is raised when a sequence returned by once (or a suffix of it) is queried more than once.

  • since 4.14
val once : 'a t -> 'a t

The sequence once xs has the same elements as the sequence xs.

Regardless of whether xs is ephemeral or persistent, once xs is an ephemeral sequence: it can be queried at most once. If it (or a suffix of it) is queried more than once, then the exception Forced_twice is raised. This can be useful, while debugging or testing, to ensure that a sequence is consumed at most once.

  • raises Forced_twice

    if once xs, or a suffix of it, is queried more than once.

  • since 4.14
val transpose : 'a t t -> 'a t t

If xss is a matrix (a sequence of rows), then transpose xss is the sequence of the columns of the matrix xss.

The rows of the matrix xss are not required to have the same length.

The matrix xss is not required to be finite (in either direction).

The matrix xss must be persistent.

  • since 4.14

Combining sequences

Splitting a sequence into two sequences

val partition_map : ('a -> ('b, 'c) Stdlib.Either.t) -> 'a t -> 'b t * 'c t

partition_map f xs returns a pair of sequences (ys, zs), where:

  • ys is the sequence of the elements y such that f x = Left y, where x ranges over xs;
  • zs is the sequence of the elements z such that f x = Right z, where x ranges over xs.

partition_map f xs is equivalent to a pair of filter_map Either.find_left (map f xs) and filter_map Either.find_right (map f xs).

Querying either of the sequences returned by partition_map f xs causes xs to be queried. Therefore, querying both of them causes xs to be queried twice. Thus, xs must be persistent and cheap. If that is not the case, use partition_map f (memoize xs).

  • since 4.14
val partition : ('a -> bool) -> 'a t -> 'a t * 'a t

partition p xs returns a pair of the subsequence of the elements of xs that satisfy p and the subsequence of the elements of xs that do not satisfy p.

partition p xs is equivalent to filter p xs, filter (fun x -> not (p x)) xs.

Consuming both of the sequences returned by partition p xs causes xs to be consumed twice and causes the function f to be applied twice to each element of the list. Therefore, f should be pure and cheap. Furthermore, xs should be persistent and cheap. If that is not the case, use partition p (memoize xs).

  • since 4.14

Converting between sequences and dispensers

A dispenser is a representation of a sequence as a function of type unit -> 'a option. Every time this function is invoked, it returns the next element of the sequence. When there are no more elements, it returns None. A dispenser has mutable internal state, therefore is ephemeral: the sequence that it represents can be consumed at most once.

val of_dispenser : (unit -> 'a option) -> 'a t

of_dispenser it is the sequence of the elements produced by the dispenser it. It is an ephemeral sequence: it can be consumed at most once. If a persistent sequence is needed, use memoize (of_dispenser it).

  • since 4.14
val to_dispenser : 'a t -> unit -> 'a option

to_dispenser xs is a fresh dispenser on the sequence xs.

This dispenser has mutable internal state, which is not protected by a lock; so, it must not be used by several threads concurrently.

  • since 4.14

Sequences of integers

val ints : int -> int t

ints i is the infinite sequence of the integers beginning at i and counting up.

  • since 4.14
val nil : 'a t
val empty : 'a t
val cons : 'a -> 'a t -> 'a t
val singleton : 'a -> 'a t
val init : int -> (int -> 'a) -> 'a t

init n f corresponds to the sequence f 0; f 1; ...; f (n-1).

  • raises Invalid_argument

    if n is negative.

  • since 3.10
val repeat : ?n:int -> 'a -> 'a t

repeat ~n x repeats x n times then stops. If n is omitted, then x is repeated forever.

val forever : (unit -> 'a) -> 'a t

forever f corresponds to the infinite sequence containing all the f ().

  • since 3.10
val cycle : 'a t -> 'a t

Cycle through the iterator infinitely. The iterator shouldn't be empty.

val iterate : ('a -> 'a) -> 'a -> 'a t

iterate f a corresponds to the infinite sequence containing a, f a, f (f a), ...

  • since 3.10
val unfold : ('b -> ('a * 'b) option) -> 'b -> 'a t

unfold f acc calls f acc and:

  • if f acc = Some (x, acc'), yield x, continue with unfold f acc'.
  • if f acc = None, stops.
val is_empty : 'a t -> bool

is_empty xs checks in the sequence xs is empty

val head : 'a t -> 'a option

Head of the list.

val head_exn : 'a t -> 'a

Unsafe version of head.

  • raises Not_found

    if the list is empty.

val tail : 'a t -> 'a t option

Tail of the list.

val tail_exn : 'a t -> 'a t

Unsafe version of tail.

  • raises Not_found

    if the list is empty.

val uncons : 'a t -> ('a * 'a t) option

uncons xs return None if xs is empty other

  • since 3.10
val equal : 'a equal -> 'a t equal

Equality step by step. Eager.

val compare : 'a ord -> 'a t ord

Lexicographic comparison. Eager.

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

Fold on values.

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

Alias for fold

val foldi : ('a -> int -> 'b -> 'a) -> 'a -> 'b t -> 'a

fold_lefti f init xs applies f acc i x where acc is the result of the previous computation or init for the first one, i is the index in the sequence (starts at 0) and x is the element of the sequence.

  • since 3.10
val fold_lefti : ('a -> int -> 'b -> 'a) -> 'a -> 'b t -> 'a

Alias of foldi.

  • since 3.10
val iter : ('a -> unit) -> 'a t -> unit
val iteri : (int -> 'a -> unit) -> 'a t -> unit

Iterate with index (starts at 0).

val length : _ t -> int

Number of elements in the list. Will not terminate if the list if infinite: use (for instance) take to make the list finite if necessary.

val take : int -> 'a t -> 'a t
val take_while : ('a -> bool) -> 'a t -> 'a t
val drop : int -> 'a t -> 'a t
val drop_while : ('a -> bool) -> 'a t -> 'a t
val map : ('a -> 'b) -> 'a t -> 'b t
val mapi : (int -> 'a -> 'b) -> 'a t -> 'b t

Map with index (starts at 0).

val fmap : ('a -> 'b option) -> 'a t -> 'b t
val filter : ('a -> bool) -> 'a t -> 'a t
val append : 'a t -> 'a t -> 'a t
val product_with : ('a -> 'b -> 'c) -> 'a t -> 'b t -> 'c t

Fair product of two (possibly infinite) lists into a new list. Lazy. The first parameter is used to combine each pair of elements.

val map_product : ('a -> 'b -> 'c) -> 'a t -> 'b t -> 'c t

Alias of product_with.

  • since 3.10
val product : 'a t -> 'b t -> ('a * 'b) t

Specialization of product_with producing tuples.

val group : 'a equal -> 'a t -> 'a t t

group eq l groups together consecutive elements that satisfy eq. Lazy. For instance group (=) [1;1;1;2;2;3;3;1] yields [1;1;1]; [2;2]; [3;3]; [1].

val uniq : 'a equal -> 'a t -> 'a t

uniq eq l returns l but removes consecutive duplicates. Lazy. In other words, if several values that are equal follow one another, only the first of them is kept.

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

for_all p [a1; ...; an] checks if all elements of the sequence satisfy the predicate p. That is, it returns (p a1) && ... && (p an) for a non-empty list and true if the sequence is empty. It consumes the sequence until it finds an element not satisfying the predicate.

  • since 3.3
val exists : ('a -> bool) -> 'a t -> bool

exists p [a1; ...; an] checks if at least one element of the sequence satisfies the predicate p. That is, it returns (p a1) || ... || (p an) for a non-empty sequence and false if the list is empty. It consumes the sequence until it finds an element satisfying the predicate.

  • since 3.3
val find : ('a -> bool) -> 'a t -> 'a option

find p [a1; ...; an] return Some ai for the first ai satisfying the predicate p and return None otherwise.

  • since 3.10
val find_map : ('a -> 'b option) -> 'a t -> 'b option

find f [a1; ...; an] return Some (f ai) for the first ai such that f ai = Some _ and return None otherwise.

  • since 3.10
val scan : ('a -> 'b -> 'a) -> 'a -> 'b t -> 'a t

scan f init xs is the sequence containing the intermediate result of fold f init xs.

  • since 3.10
val flat_map : ('a -> 'b t) -> 'a t -> 'b t
val concat_map : ('a -> 'b t) -> 'a t -> 'b t

Alias of flat_map

  • since 3.10
val filter_map : ('a -> 'b option) -> 'a t -> 'b t
val flatten : 'a t t -> 'a t
val concat : 'a t t -> 'a t

Alias of flatten.

  • since 3.10
val range : int -> int -> int t
val (--) : int -> int -> int t

a -- b is the range of integers containing a and b (therefore, never empty).

val (--^) : int -> int -> int t

a -- b is the integer range from a to b, where b is excluded.

Operations on two Collections

val fold2 : ('acc -> 'a -> 'b -> 'acc) -> 'acc -> 'a t -> 'b t -> 'acc

Fold on two collections at once. Stop as soon as one of them ends.

val fold_left2 : ('acc -> 'a -> 'b -> 'acc) -> 'acc -> 'a t -> 'b t -> 'acc

Alias for fold2.

  • since 3.10
val map2 : ('a -> 'b -> 'c) -> 'a t -> 'b t -> 'c t

Map on two collections at once. Stop as soon as one of the arguments is exhausted.

val iter2 : ('a -> 'b -> unit) -> 'a t -> 'b t -> unit

Iterate on two collections at once. Stop as soon as one of them ends.

val for_all2 : ('a -> 'b -> bool) -> 'a t -> 'b t -> bool
val exists2 : ('a -> 'b -> bool) -> 'a t -> 'b t -> bool
val merge : 'a ord -> 'a t -> 'a t -> 'a t

Merge two sorted iterators into a sorted iterator.

val sorted_merge : 'a ord -> 'a t -> 'a t -> 'a t

Alias of merge.

  • since 3.10
val zip : 'a t -> 'b t -> ('a * 'b) t

Combine elements pairwise. Stop as soon as one of the lists stops.

val unzip : ('a * 'b) t -> 'a t * 'b t

Split each tuple in the list.

val split : ('a * 'b) t -> 'a t * 'b t

Alias of unzip.

  • since 3.10
val zip_i : 'a t -> (int * 'a) t

zip_i seq zips the index of each element with the element itself.

  • since 3.8

Misc

val sort : cmp:'a ord -> 'a t -> 'a t

Eager sort. Require the iterator to be finite. O(n ln(n)) time and space.

val sort_uniq : cmp:'a ord -> 'a t -> 'a t

Eager sort that removes duplicate values. Require the iterator to be finite. O(n ln(n)) time and space.

val memoize : 'a t -> 'a t

Avoid recomputations by caching intermediate results.

Fair Combinations

val interleave : 'a t -> 'a t -> 'a t

Fair interleaving of both streams.

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

Fair version of flat_map.

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

Fair version of (<*>).

Implementations

val return : 'a -> 'a t
val pure : 'a -> 'a t
val (>>=) : 'a t -> ('a -> 'b t) -> 'b t
val (>|=) : 'a t -> ('a -> 'b) -> 'b t
val (<*>) : ('a -> 'b) t -> 'a t -> 'b t
val (>>-) : 'a t -> ('a -> 'b t) -> 'b t

Infix version of fair_flat_map.

val (<.>) : ('a -> 'b) t -> 'a t -> 'b t

Infix version of fair_app.

Infix operators

module Infix : sig ... end
module type MONAD = sig ... end
module Traverse (M : MONAD) : sig ... end

Conversions

val of_list : 'a list -> 'a t
val to_list : 'a t -> 'a list

Gather all values into a list.

val of_array : 'a array -> 'a t

Iterate on the array.

val to_array : 'a t -> 'a array

Convert into array.

val to_rev_list : 'a t -> 'a list

Convert to a list, in reverse order. More efficient than to_list.

val to_iter : 'a t -> 'a iter
val to_gen : 'a t -> 'a gen
val of_gen : 'a gen -> 'a t

of_gen g consumes the generator and caches intermediate results.

val of_string : string -> char t

Iterate on characters.

  • since 3.7

IO

val pp : ?pp_start:unit printer -> ?pp_stop:unit printer -> ?pp_sep:unit printer -> diff --git a/dev/containers/CCStringLabels/index.html b/dev/containers/CCStringLabels/index.html index 083dc758..ea599ac3 100644 --- a/dev/containers/CCStringLabels/index.html +++ b/dev/containers/CCStringLabels/index.html @@ -1,5 +1,5 @@ -CCStringLabels (containers.CCStringLabels)

Module CCStringLabels

Basic String Utils (Labeled version of CCString)

type 'a iter = ('a -> unit) -> unit

Fast internal iterator.

  • since 2.8
type 'a gen = unit -> 'a option

Documentation for the standard StringLabels module

include module type of struct include Stdlib.StringLabels end

Strings

type t = string

The type for strings.

val make : int -> char -> string

make n c is a string of length n with each index holding the character c.

  • raises Invalid_argument

    if n < 0 or n > Sys.max_string_length.

val init : int -> f:(int -> char) -> string

init n ~f is a string of length n with index i holding the character f i (called in increasing index order).

  • raises Invalid_argument

    if n < 0 or n > Sys.max_string_length.

  • since 4.02.0
val empty : string

The empty string.

  • since 4.13.0
val of_bytes : bytes -> string

Return a new string that contains the same bytes as the given byte sequence.

  • since 4.13.0
val to_bytes : string -> bytes

Return a new byte sequence that contains the same bytes as the given string.

  • since 4.13.0
val get : string -> int -> char

get s i is the character at index i in s. This is the same as writing s.[i].

  • raises Invalid_argument

    if i not an index of s.

Concatenating

Note. The Stdlib.(^) binary operator concatenates two strings.

val concat : sep:string -> string list -> string

concat ~sep ss concatenates the list of strings ss, inserting the separator string sep between each.

  • raises Invalid_argument

    if the result is longer than Sys.max_string_length bytes.

val cat : string -> string -> string

cat s1 s2 concatenates s1 and s2 (s1 ^ s2).

  • raises Invalid_argument

    if the result is longer than Sys.max_string_length bytes.

  • since 4.13.0

Predicates and comparisons

val starts_with : prefix:string -> string -> bool

starts_with ~prefix s is true if and only if s starts with prefix.

  • since 4.13.0
val ends_with : suffix:string -> string -> bool

ends_with ~suffix s is true if and only if s ends with suffix.

  • since 4.13.0
val contains_from : string -> int -> char -> bool

contains_from s start c is true if and only if c appears in s after position start.

  • raises Invalid_argument

    if start is not a valid position in s.

val rcontains_from : string -> int -> char -> bool

rcontains_from s stop c is true if and only if c appears in s before position stop+1.

  • raises Invalid_argument

    if stop < 0 or stop+1 is not a valid position in s.

val contains : string -> char -> bool

contains s c is String.contains_from s 0 c.

Extracting substrings

val sub : string -> pos:int -> len:int -> string

sub s ~pos ~len is a string of length len, containing the substring of s that starts at position pos and has length len.

  • raises Invalid_argument

    if pos and len do not designate a valid substring of s.

Transforming

val map : f:(char -> char) -> string -> string

map f s is the string resulting from applying f to all the characters of s in increasing order.

  • since 4.00.0
val mapi : f:(int -> char -> char) -> string -> string

mapi ~f s is like map but the index of the character is also passed to f.

  • since 4.02.0
val fold_left : f:('a -> char -> 'a) -> init:'a -> string -> 'a

fold_left f x s computes f (... (f (f x s.[0]) s.[1]) ...) s.[n-1], where n is the length of the string s.

  • since 4.13.0
val fold_right : f:(char -> 'a -> 'a) -> string -> init:'a -> 'a

fold_right f s x computes f s.[0] (f s.[1] ( ... (f s.[n-1] x) ...)), where n is the length of the string s.

  • since 4.13.0
val trim : string -> string

trim s is s without leading and trailing whitespace. Whitespace characters are: ' ', '\x0C' (form feed), '\n', '\r', and '\t'.

  • since 4.00.0
val escaped : string -> string

escaped s is s with special characters represented by escape sequences, following the lexical conventions of OCaml.

All characters outside the US-ASCII printable range [0x20;0x7E] are escaped, as well as backslash (0x2F) and double-quote (0x22).

The function Scanf.unescaped is a left inverse of escaped, i.e. Scanf.unescaped (escaped s) = s for any string s (unless escaped s fails).

  • raises Invalid_argument

    if the result is longer than Sys.max_string_length bytes.

Traversing

val iteri : f:(int -> char -> unit) -> string -> unit

iteri is like iter, but the function is also given the corresponding character index.

  • since 4.00.0

Searching

val index_from : string -> int -> char -> int

index_from s i c is the index of the first occurrence of c in s after position i.

  • raises Not_found

    if c does not occur in s after position i.

  • raises Invalid_argument

    if i is not a valid position in s.

val index_from_opt : string -> int -> char -> int option

index_from_opt s i c is the index of the first occurrence of c in s after position i (if any).

  • raises Invalid_argument

    if i is not a valid position in s.

  • since 4.05
val rindex_from : string -> int -> char -> int

rindex_from s i c is the index of the last occurrence of c in s before position i+1.

  • raises Not_found

    if c does not occur in s before position i+1.

  • raises Invalid_argument

    if i+1 is not a valid position in s.

val rindex_from_opt : string -> int -> char -> int option

rindex_from_opt s i c is the index of the last occurrence of c in s before position i+1 (if any).

  • raises Invalid_argument

    if i+1 is not a valid position in s.

  • since 4.05
val index : string -> char -> int

index s c is String.index_from s 0 c.

val index_opt : string -> char -> int option

index_opt s c is String.index_from_opt s 0 c.

  • since 4.05
val rindex : string -> char -> int

rindex s c is String.rindex_from s (length s - 1) c.

val rindex_opt : string -> char -> int option

rindex_opt s c is String.rindex_from_opt s (length s - 1) c.

  • since 4.05

Strings and Sequences

val to_seqi : t -> (int * char) Stdlib.Seq.t

to_seqi s is like to_seq but also tuples the corresponding index.

  • since 4.07

UTF decoding and validations

  • since 4.14

UTF-8

val get_utf_8_uchar : t -> int -> Stdlib.Uchar.utf_decode

get_utf_8_uchar b i decodes an UTF-8 character at index i in b.

val is_valid_utf_8 : t -> bool

is_valid_utf_8 b is true if and only if b contains valid UTF-8 data.

UTF-16BE

val get_utf_16be_uchar : t -> int -> Stdlib.Uchar.utf_decode

get_utf_16be_uchar b i decodes an UTF-16BE character at index i in b.

val is_valid_utf_16be : t -> bool

is_valid_utf_16be b is true if and only if b contains valid UTF-16BE data.

UTF-16LE

val get_utf_16le_uchar : t -> int -> Stdlib.Uchar.utf_decode

get_utf_16le_uchar b i decodes an UTF-16LE character at index i in b.

val is_valid_utf_16le : t -> bool

is_valid_utf_16le b is true if and only if b contains valid UTF-16LE data.

Deprecated functions

val create : int -> bytes

create n returns a fresh byte sequence of length n. The sequence is uninitialized and contains arbitrary bytes.

  • raises Invalid_argument

    if n < 0 or n > Sys.max_string_length.

  • deprecated

    This is a deprecated alias of Bytes.create/BytesLabels.create.

val copy : string -> string

Return a copy of the given string.

  • deprecated

    Because strings are immutable, it doesn't make much sense to make identical copies of them.

val fill : bytes -> pos:int -> len:int -> char -> unit

fill s ~pos ~len c modifies byte sequence s in place, replacing len bytes by c, starting at pos.

  • raises Invalid_argument

    if pos and len do not designate a valid substring of s.

  • deprecated

    This is a deprecated alias of Bytes.fill/BytesLabels.fill.

val uppercase : string -> string

Return a copy of the argument, with all lowercase letters translated to uppercase, including accented letters of the ISO Latin-1 (8859-1) character set.

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

val lowercase : string -> string

Return a copy of the argument, with all uppercase letters translated to lowercase, including accented letters of the ISO Latin-1 (8859-1) character set.

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

val capitalize : string -> string

Return a copy of the argument, with the first character set to uppercase, using the ISO Latin-1 (8859-1) character set..

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

val uncapitalize : string -> string

Return a copy of the argument, with the first character set to lowercase, using the ISO Latin-1 (8859-1) character set.

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

Binary decoding of integers

The functions in this section binary decode integers from strings.

All following functions raise Invalid_argument if the characters needed at index i to decode the integer are not available.

Little-endian (resp. big-endian) encoding means that least (resp. most) significant bytes are stored first. Big-endian is also known as network byte order. Native-endian encoding is either little-endian or big-endian depending on Sys.big_endian.

32-bit and 64-bit integers are represented by the int32 and int64 types, which can be interpreted either as signed or unsigned numbers.

8-bit and 16-bit integers are represented by the int type, which has more bits than the binary encoding. These extra bits are sign-extended (or zero-extended) for functions which decode 8-bit or 16-bit integers and represented them with int values.

val get_uint8 : string -> int -> int

get_uint8 b i is b's unsigned 8-bit integer starting at character index i.

  • since 4.13.0
val get_int8 : string -> int -> int

get_int8 b i is b's signed 8-bit integer starting at character index i.

  • since 4.13.0
val get_uint16_ne : string -> int -> int

get_uint16_ne b i is b's native-endian unsigned 16-bit integer starting at character index i.

  • since 4.13.0
val get_uint16_be : string -> int -> int

get_uint16_be b i is b's big-endian unsigned 16-bit integer starting at character index i.

  • since 4.13.0
val get_uint16_le : string -> int -> int

get_uint16_le b i is b's little-endian unsigned 16-bit integer starting at character index i.

  • since 4.13.0
val get_int16_ne : string -> int -> int

get_int16_ne b i is b's native-endian signed 16-bit integer starting at character index i.

  • since 4.13.0
val get_int16_be : string -> int -> int

get_int16_be b i is b's big-endian signed 16-bit integer starting at character index i.

  • since 4.13.0
val get_int16_le : string -> int -> int

get_int16_le b i is b's little-endian signed 16-bit integer starting at character index i.

  • since 4.13.0
val get_int32_ne : string -> int -> int32

get_int32_ne b i is b's native-endian 32-bit integer starting at character index i.

  • since 4.13.0
val get_int32_be : string -> int -> int32

get_int32_be b i is b's big-endian 32-bit integer starting at character index i.

  • since 4.13.0
val get_int32_le : string -> int -> int32

get_int32_le b i is b's little-endian 32-bit integer starting at character index i.

  • since 4.13.0
val get_int64_ne : string -> int -> int64

get_int64_ne b i is b's native-endian 64-bit integer starting at character index i.

  • since 4.13.0
val get_int64_be : string -> int -> int64

get_int64_be b i is b's big-endian 64-bit integer starting at character index i.

  • since 4.13.0
val get_int64_le : string -> int -> int64

get_int64_le b i is b's little-endian 64-bit integer starting at character index i.

  • since 4.13.0
val length : t -> int

length s returns the length (number of characters) of the given string s.

val blit : +CCStringLabels (containers.CCStringLabels)

Module CCStringLabels

Basic String Utils (Labeled version of CCString)

type 'a iter = ('a -> unit) -> unit

Fast internal iterator.

  • since 2.8
type 'a gen = unit -> 'a option

Strings

type t = string

The type for strings.

val make : int -> char -> string

make n c is a string of length n with each index holding the character c.

  • raises Invalid_argument

    if n < 0 or n > Sys.max_string_length.

val init : int -> f:(int -> char) -> string

init n ~f is a string of length n with index i holding the character f i (called in increasing index order).

  • raises Invalid_argument

    if n < 0 or n > Sys.max_string_length.

  • since 4.02.0
val empty : string

The empty string.

  • since 4.13.0
val of_bytes : bytes -> string

Return a new string that contains the same bytes as the given byte sequence.

  • since 4.13.0
val to_bytes : string -> bytes

Return a new byte sequence that contains the same bytes as the given string.

  • since 4.13.0
val get : string -> int -> char

get s i is the character at index i in s. This is the same as writing s.[i].

  • raises Invalid_argument

    if i not an index of s.

Concatenating

Note. The Stdlib.(^) binary operator concatenates two strings.

val concat : sep:string -> string list -> string

concat ~sep ss concatenates the list of strings ss, inserting the separator string sep between each.

  • raises Invalid_argument

    if the result is longer than Sys.max_string_length bytes.

val cat : string -> string -> string

cat s1 s2 concatenates s1 and s2 (s1 ^ s2).

  • raises Invalid_argument

    if the result is longer than Sys.max_string_length bytes.

  • since 4.13.0

Predicates and comparisons

val starts_with : prefix:string -> string -> bool

starts_with ~prefix s is true if and only if s starts with prefix.

  • since 4.13.0
val ends_with : suffix:string -> string -> bool

ends_with ~suffix s is true if and only if s ends with suffix.

  • since 4.13.0
val contains_from : string -> int -> char -> bool

contains_from s start c is true if and only if c appears in s after position start.

  • raises Invalid_argument

    if start is not a valid position in s.

val rcontains_from : string -> int -> char -> bool

rcontains_from s stop c is true if and only if c appears in s before position stop+1.

  • raises Invalid_argument

    if stop < 0 or stop+1 is not a valid position in s.

val contains : string -> char -> bool

contains s c is String.contains_from s 0 c.

Extracting substrings

val sub : string -> pos:int -> len:int -> string

sub s ~pos ~len is a string of length len, containing the substring of s that starts at position pos and has length len.

  • raises Invalid_argument

    if pos and len do not designate a valid substring of s.

Transforming

val map : f:(char -> char) -> string -> string

map f s is the string resulting from applying f to all the characters of s in increasing order.

  • since 4.00.0
val mapi : f:(int -> char -> char) -> string -> string

mapi ~f s is like map but the index of the character is also passed to f.

  • since 4.02.0
val fold_left : f:('a -> char -> 'a) -> init:'a -> string -> 'a

fold_left f x s computes f (... (f (f x s.[0]) s.[1]) ...) s.[n-1], where n is the length of the string s.

  • since 4.13.0
val fold_right : f:(char -> 'a -> 'a) -> string -> init:'a -> 'a

fold_right f s x computes f s.[0] (f s.[1] ( ... (f s.[n-1] x) ...)), where n is the length of the string s.

  • since 4.13.0
val trim : string -> string

trim s is s without leading and trailing whitespace. Whitespace characters are: ' ', '\x0C' (form feed), '\n', '\r', and '\t'.

  • since 4.00.0
val escaped : string -> string

escaped s is s with special characters represented by escape sequences, following the lexical conventions of OCaml.

All characters outside the US-ASCII printable range [0x20;0x7E] are escaped, as well as backslash (0x2F) and double-quote (0x22).

The function Scanf.unescaped is a left inverse of escaped, i.e. Scanf.unescaped (escaped s) = s for any string s (unless escaped s fails).

  • raises Invalid_argument

    if the result is longer than Sys.max_string_length bytes.

Traversing

val iteri : f:(int -> char -> unit) -> string -> unit

iteri is like iter, but the function is also given the corresponding character index.

  • since 4.00.0

Searching

val index_from : string -> int -> char -> int

index_from s i c is the index of the first occurrence of c in s after position i.

  • raises Not_found

    if c does not occur in s after position i.

  • raises Invalid_argument

    if i is not a valid position in s.

val index_from_opt : string -> int -> char -> int option

index_from_opt s i c is the index of the first occurrence of c in s after position i (if any).

  • raises Invalid_argument

    if i is not a valid position in s.

  • since 4.05
val rindex_from : string -> int -> char -> int

rindex_from s i c is the index of the last occurrence of c in s before position i+1.

  • raises Not_found

    if c does not occur in s before position i+1.

  • raises Invalid_argument

    if i+1 is not a valid position in s.

val rindex_from_opt : string -> int -> char -> int option

rindex_from_opt s i c is the index of the last occurrence of c in s before position i+1 (if any).

  • raises Invalid_argument

    if i+1 is not a valid position in s.

  • since 4.05
val index : string -> char -> int

index s c is String.index_from s 0 c.

val index_opt : string -> char -> int option

index_opt s c is String.index_from_opt s 0 c.

  • since 4.05
val rindex : string -> char -> int

rindex s c is String.rindex_from s (length s - 1) c.

val rindex_opt : string -> char -> int option

rindex_opt s c is String.rindex_from_opt s (length s - 1) c.

  • since 4.05

Strings and Sequences

val to_seqi : t -> (int * char) Stdlib.Seq.t

to_seqi s is like to_seq but also tuples the corresponding index.

  • since 4.07

UTF decoding and validations

  • since 4.14

UTF-8

val get_utf_8_uchar : t -> int -> Stdlib.Uchar.utf_decode

get_utf_8_uchar b i decodes an UTF-8 character at index i in b.

val is_valid_utf_8 : t -> bool

is_valid_utf_8 b is true if and only if b contains valid UTF-8 data.

UTF-16BE

val get_utf_16be_uchar : t -> int -> Stdlib.Uchar.utf_decode

get_utf_16be_uchar b i decodes an UTF-16BE character at index i in b.

val is_valid_utf_16be : t -> bool

is_valid_utf_16be b is true if and only if b contains valid UTF-16BE data.

UTF-16LE

val get_utf_16le_uchar : t -> int -> Stdlib.Uchar.utf_decode

get_utf_16le_uchar b i decodes an UTF-16LE character at index i in b.

val is_valid_utf_16le : t -> bool

is_valid_utf_16le b is true if and only if b contains valid UTF-16LE data.

Deprecated functions

val create : int -> bytes

create n returns a fresh byte sequence of length n. The sequence is uninitialized and contains arbitrary bytes.

  • raises Invalid_argument

    if n < 0 or n > Sys.max_string_length.

  • deprecated

    This is a deprecated alias of Bytes.create/BytesLabels.create.

val copy : string -> string

Return a copy of the given string.

  • deprecated

    Because strings are immutable, it doesn't make much sense to make identical copies of them.

val fill : bytes -> pos:int -> len:int -> char -> unit

fill s ~pos ~len c modifies byte sequence s in place, replacing len bytes by c, starting at pos.

  • raises Invalid_argument

    if pos and len do not designate a valid substring of s.

  • deprecated

    This is a deprecated alias of Bytes.fill/BytesLabels.fill.

val uppercase : string -> string

Return a copy of the argument, with all lowercase letters translated to uppercase, including accented letters of the ISO Latin-1 (8859-1) character set.

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

val lowercase : string -> string

Return a copy of the argument, with all uppercase letters translated to lowercase, including accented letters of the ISO Latin-1 (8859-1) character set.

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

val capitalize : string -> string

Return a copy of the argument, with the first character set to uppercase, using the ISO Latin-1 (8859-1) character set..

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

val uncapitalize : string -> string

Return a copy of the argument, with the first character set to lowercase, using the ISO Latin-1 (8859-1) character set.

  • deprecated

    Functions operating on Latin-1 character set are deprecated.

Binary decoding of integers

The functions in this section binary decode integers from strings.

All following functions raise Invalid_argument if the characters needed at index i to decode the integer are not available.

Little-endian (resp. big-endian) encoding means that least (resp. most) significant bytes are stored first. Big-endian is also known as network byte order. Native-endian encoding is either little-endian or big-endian depending on Sys.big_endian.

32-bit and 64-bit integers are represented by the int32 and int64 types, which can be interpreted either as signed or unsigned numbers.

8-bit and 16-bit integers are represented by the int type, which has more bits than the binary encoding. These extra bits are sign-extended (or zero-extended) for functions which decode 8-bit or 16-bit integers and represented them with int values.

val get_uint8 : string -> int -> int

get_uint8 b i is b's unsigned 8-bit integer starting at character index i.

  • since 4.13.0
val get_int8 : string -> int -> int

get_int8 b i is b's signed 8-bit integer starting at character index i.

  • since 4.13.0
val get_uint16_ne : string -> int -> int

get_uint16_ne b i is b's native-endian unsigned 16-bit integer starting at character index i.

  • since 4.13.0
val get_uint16_be : string -> int -> int

get_uint16_be b i is b's big-endian unsigned 16-bit integer starting at character index i.

  • since 4.13.0
val get_uint16_le : string -> int -> int

get_uint16_le b i is b's little-endian unsigned 16-bit integer starting at character index i.

  • since 4.13.0
val get_int16_ne : string -> int -> int

get_int16_ne b i is b's native-endian signed 16-bit integer starting at character index i.

  • since 4.13.0
val get_int16_be : string -> int -> int

get_int16_be b i is b's big-endian signed 16-bit integer starting at character index i.

  • since 4.13.0
val get_int16_le : string -> int -> int

get_int16_le b i is b's little-endian signed 16-bit integer starting at character index i.

  • since 4.13.0
val get_int32_ne : string -> int -> int32

get_int32_ne b i is b's native-endian 32-bit integer starting at character index i.

  • since 4.13.0
val get_int32_be : string -> int -> int32

get_int32_be b i is b's big-endian 32-bit integer starting at character index i.

  • since 4.13.0
val get_int32_le : string -> int -> int32

get_int32_le b i is b's little-endian 32-bit integer starting at character index i.

  • since 4.13.0
val get_int64_ne : string -> int -> int64

get_int64_ne b i is b's native-endian 64-bit integer starting at character index i.

  • since 4.13.0
val get_int64_be : string -> int -> int64

get_int64_be b i is b's big-endian 64-bit integer starting at character index i.

  • since 4.13.0
val get_int64_le : string -> int -> int64

get_int64_le b i is b's little-endian 64-bit integer starting at character index i.

  • since 4.13.0
val length : t -> int

length s returns the length (number of characters) of the given string s.

val blit : src:t -> src_pos:int -> dst:Stdlib.Bytes.t ->