package ctypes

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Combinators for binding to C libraries without writing any C

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    yallop@gmail.com

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    yallop@gmail.com

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0.9.4.tar.gz
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doc/ctypes/Ctypes/CArray/index.html

Module Ctypes.CArray

Operations on C arrays.

type 'a t = 'a carray
val get : 'a t -> int -> 'a

get a n returns the nth element of the zero-indexed array a. The semantics for non-scalar types are non-copying, as for (!@).

If you rebind the CArray module to Array then you can also use the syntax a.(n) instead of Array.get a n.

Raise Invalid_argument "index out of bounds" if n is outside of the range 0 to (CArray.length a - 1).

val set : 'a t -> int -> 'a -> unit

set a n v overwrites the nth element of the zero-indexed array a with v.

If you rebind the CArray module to Array then you can also use the a.(n) <- v syntax instead of Array.set a n v.

Raise Invalid_argument "index out of bounds" if n is outside of the range 0 to (CArray.length a - 1).

val unsafe_get : 'a t -> int -> 'a

unsafe_get a n behaves like get a n except that the check that n between 0 and (CArray.length a - 1) is not performed.

val unsafe_set : 'a t -> int -> 'a -> unit

unsafe_set a n v behaves like set a n v except that the check that n between 0 and (CArray.length a - 1) is not performed.

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

of_list t l builds an array of type t of the same length as l, and writes the elements of l to the corresponding elements of the array.

val to_list : 'a t -> 'a list

to_list a builds a list of the same length as a such that each element of the list is the result of reading the corresponding element of a.

val length : 'a t -> int

Return the number of elements of the given array.

val start : 'a t -> 'a ptr

Return the address of the first element of the given array.

val from_ptr : 'a ptr -> int -> 'a t

from_ptr p n creates an n-length array reference to the memory at address p.

val make : ?finalise:('a t -> unit) -> 'a typ -> ?initial:'a -> int -> 'a t

make t n creates an n-length array of type t. If the optional argument ?initial is supplied, it indicates a value that should be used to initialise every element of the array. The argument ?finalise, if present, will be called just before the memory is freed.

val element_type : 'a t -> 'a typ

Retrieve the element type of an array.