package vec

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Fast, safe mutable dynamic arrays

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v0.3.0.tar.gz
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doc/vec/Vec/index.html

Module VecSource

Mutable dynamic arrays

Sourcetype ('a, -'p) t

The 'p type parameter is a phantom type parameter that represents the vector's mutability.

It is [`R | `W] for read-write vectors, [`R] for read-only vectors, or [`W] for write-only vectors.

Sourceval default_growth_rate : float

The default growth rate of newly-created vectors.

Creating vectors

Sourceval make : ?growth_rate:float -> ?capacity:int -> unit -> ('a, [ `R | `W ]) t

Constructs a vector with the specified growth rate and capacity.

Growth rate defaults to default_growth_rate.

Capacity defaults to 0.

Sourceval range : int -> int -> (int, [ `R | `W ]) t

Constructs a vector containing all numbers in the specified range.

Sourceval singleton : 'a -> ('a, [ `R | `W ]) t

Returns a singleton vector containing the specified item. (Applicative functor pure operation)

Sourceval copy : ('a, [> `R ]) t -> ('a, [ `R | `W ]) t

Creates a copy of the vector.

Restricting permissions

Sourceval as_read_only : ('a, [> `R ]) t -> ('a, [ `R ]) t

Reinterprets the vector as a read-only vector.

Sourceval as_write_only : ('a, [> `W ]) t -> ('a, [ `W ]) t

Reinterprets the vector as a write-only vector.

Basic properties

Sourceval length : ('a, [> ]) t -> int

Returns the length of the vector.

Sourceval capacity : ('a, [> ]) t -> int

Returns the capacity of the vector.

Sourceval ensure_capacity : int -> ('a, [> `W ]) t -> unit

Ensures the vector's buffer has at least as many free slots as the specified value.

Sourceval growth_rate : ('a, [> ]) t -> float

Returns the growth rate of the vector.

Sourceval set_growth_rate : float -> ('a, [> `W ]) t -> unit

Sets the growth rate of vector to the specified value.

Sourceval ensure_growth_rate : float -> ('a, [> `W ]) t -> unit

Ensures the vector's growth rate is at least as great as the specified value.

Accessing elements

Sourceval get : ('a, [> `R ]) t -> int -> 'a option

Gets the value in the vector at the specified index. Returns None if the index is out of range.

Sourceval set : ('a, [> `W ]) t -> int -> 'a -> bool

Sets the value in the vector at the specified index to the specified value. Returns false if the index is out of range.

Sourceval get_exn : ('a, [> `R ]) t -> int -> 'a

Gets the value in the vector at the specified index.

Sourceval set_exn : ('a, [> `W ]) t -> int -> 'a -> unit

Sets the value in the vector at the specified index to the specified value.

Sourceval find : ('a -> bool) -> ('a, [> `W ]) t -> 'a option

Returns the first element of the vector that satisfies the predicate, or None.

Sourceval find_exn : ('a -> bool) -> ('a, [> `W ]) t -> 'a

Returns the first element of the vector that satisfies the predicate.

  • raises Not_found

    if no element satisfies the predicate.

Conversions

Sourceval of_list : 'a list -> ('a, [ `R | `W ]) t

Constructs a vector from the specified list.

Sourceval to_list : ('a, [> `R ]) t -> 'a list

Constructs a list from the specified vector.

Sourceval of_array : 'a array -> ('a, [ `R | `W ]) t

Constructs a vector from the specified array.

Sourceval to_array : ('a, [> `R ]) t -> 'a array

Constructs an array from the specified vector.

Sourceval pretty_print : ('a -> string) -> ('a, [> `R ]) t -> string

Returns a string representation of the vector, using the specified function to format each value.

Modifying vectors

Sourceval clear : ('a, [> `W ]) t -> unit

Resets the vector to an empty state.

Sourceval shrink_to_fit : ('a, [> `W ]) t -> unit

Shrinks the vector's internal buffer to only be as large as the vector's length.

Sourceval push : 'a -> ('a, [> `W ]) t -> unit

Pushes the specified item onto the end of the vector.

Sourceval pop : ('a, [ `R | `W ]) t -> 'a option

Pops off the item from the end of the vector.

Sourceval add_at : int -> 'a -> ('a, [> `W ]) t -> bool

Inserts an item into the vector at the specified index.

Sourceval remove_at : int -> ('a, [ `R | `W ]) t -> 'a option

Removes and returns the item at the specified index.

Sourceval drop_at : int -> ('a, [> `W ]) t -> bool

Removes the item at the specified index, without returning it.

Transformations

Sourceval map : ('a -> 'b) -> ('a, [> `R ]) t -> ('b, [ `R | `W ]) t

Maps the specified function over the vector, returning a new vector. (Functor map operation)

Sourceval mapi : (int -> 'a -> 'b) -> ('a, [> `R ]) t -> ('b, [ `R | `W ]) t

Like map, but the function also takes the item's index as a parameter.

Sourceval map_in_place : ('a -> 'a) -> ('a, [ `R | `W ]) t -> unit

Like map, but the transformation is done in-place.

Sourceval flat_map : ('a -> ('b, [> `R ]) t) -> ('a, [> `R ]) t -> ('b, [ `R | `W ]) t

Like map, but flattens the result. (Monad bind operation)

Sourceval rev : ('a, [> `R ]) t -> ('a, [ `R | `W ]) t

Returns a new vector that contains all the items in the specified vector, but in reverse order.

Sourceval rev_in_place : ('a, [ `R | `W ]) t -> unit

Reverses the vector in-place.

Filters & folds

Sourceval filter : ('a -> bool) -> ('a, [> `R ]) t -> ('a, [ `R | `W ]) t

Returns a new vector containing only the items from the first vector that satisfy the specified predicate.

Sourceval filteri : (int -> 'a -> bool) -> ('a, [> `R ]) t -> ('a, [ `R | `W ]) t

Like filter, but the predicate also takes the item's index as a parameter.

Sourceval filter_in_place : ('a -> bool) -> ('a, [ `R | `W ]) t -> unit

Performs a filter in-place, based on the specified predicate.

Sourceval fold_left : ('b -> 'a -> 'b) -> 'b -> ('a, [> `R ]) t -> 'b

Folds the specified function and default value over the array, from left to right.

Sourceval fold_right : ('a -> 'b -> 'b) -> ('a, [> `R ]) t -> 'b -> 'b

Folds the specified function and default value over the array, from right to left.

Combining vectors

Sourceval append : ('a, [> `R ]) t -> ('a, [> `R ]) t -> ('a, [ `R | `W ]) t

Concatenates the two vectors into a new vector.

Sourceval append_in_place : ('a, [ `R | `W ]) t -> ('a, [> `R ]) t -> unit

Appends the second vector to the first vector in-place.

Sourceval cartesian_product : ('a, [> `R ]) t -> ('b, [> `R ]) t -> ('a * 'b, [ `R | `W ]) t

Cartesian product of 2 vectors. (Equivalent to liftA2 (,))

Sourceval map2 : ('a -> 'b -> 'c) -> ('a, [> `R ]) t -> ('b, [> `R ]) t -> ('c, [ `R | `W ]) t

Maps the specified function over all combinations of tuples from the 2 vectors, returning a new vector. (Applicative functor liftA2 operation

Sourceval apply : ('a -> 'b, [> `R ]) t -> ('a, [> `R ]) t -> ('b, [ `R | `W ]) t

Applies every function from the first vector to every value from the second vector, returning a new vector. (Applicatve functor ap operation)

Sourceval flatten : (('a, [> `R ]) t, [> `R ]) t -> ('a, [ `R | `W ]) t

Flattens nested vectors into a single, one-dimensional vector. (Monad join operation)

Sourceval zip : ('a, [> `R ]) t -> ('b, [> `R ]) t -> ('a * 'b, [ `R | `W ]) t

Zips the two vectors together.

Sourceval zip_with : ('a -> 'b -> 'c) -> ('a, [> `R ]) t -> ('b, [> `R ]) t -> ('c, [ `R | `W ]) t

Zips the two vectors together, using the specified function to combine values.

Querying vectors

Sourceval exists : ('a -> bool) -> ('a, [> `R ]) t -> bool

Returns true if any item in the vector satisfies the specified predicate.

Sourceval for_all : ('a -> bool) -> ('a, [> `R ]) t -> bool

Returns true if all items in the vector satisfy the specified predicate.

Sourceval mem : 'a -> ('a, [> `R ]) t -> bool

Returns true if the specified item exists in the vector. Uses structural equality.

Sourceval memq : 'a -> ('a, [> `R ]) t -> bool

Returns true if the specified item exists in the vector. Uses physical equality.

Sorting

Sourceval sort : ('a, [ `R | `W ]) t -> unit

Sorts the vector.

Sourceval sort_by : ('a -> 'a -> int) -> ('a, [ `R | `W ]) t -> unit

Sorts the vector using the specified comparison function.

Equality and comparison

Sourceval equal : ('a, [> `R ]) t -> ('a, [> `R ]) t -> bool

Compares two vectors for equality.

Sourceval equal_by : ('a -> 'a -> bool) -> ('a, [> `R ]) t -> ('a, [> `R ]) t -> bool

Compares two vectors for equality, using the specified equality function for elements.

Sourceval compare : ('a, [> `R ]) t -> ('a, [> `R ]) t -> int

Compares two vectors lexicographically.

Sourceval compare_by : ('a -> 'a -> int) -> ('a, [> `R ]) t -> ('a, [> `R ]) t -> int

Compares two vectors lexicographically, using the specified comparison function for elements.

Iteration

Sourceval iter : ('a -> unit) -> ('a, [> `R ]) t -> unit

Applies the specified function to each item in the vector.

Sourceval iteri : (int -> 'a -> unit) -> ('a, [> `R ]) t -> unit

Like iter, but the function also takes the item's index as a parameter.

Infix operators

Sourcemodule Infix : sig ... end

Contains infix versions of some vector operations.

Monadic syntax

Sourcemodule Let_syntax : sig ... end

Provides support for OCaml 4.08's binding operator syntax.

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