callback(3) [centos man page]

Callback(3)							   OCaml library						       Callback(3)

NAME

       Callback - Registering OCaml values with the C runtime.

Module
       Module	Callback

Documentation
       Module Callback
	: sig end

       Registering OCaml values with the C runtime.

       This  module  allows  OCaml values to be registered with the C runtime under a symbolic name, so that C code can later call back registered
       OCaml functions, or raise registered OCaml exceptions.

       val register : string -> 'a -> unit

       Callback.register n v registers the value v under the name n . C code can later retrieve a handle to v by calling caml_named_value(n) .

       val register_exception : string -> exn -> unit

       Callback.register_exception n exn registers the exception contained in the exception value exn under the name n . C code can later retrieve
       a  handle  to the exception by calling caml_named_value(n) . The exception value thus obtained is suitable for passing as first argument to
       raise_constant or raise_with_arg .

OCamldoc							    2014-06-09							       Callback(3)

Stream(3)							   OCaml library							 Stream(3)

NAME

       Stream - Streams and parsers.

Module
       Module	Stream

Documentation
       Module Stream
	: sig end

       Streams and parsers.

       type 'a t

       The type of streams holding values of type 'a .

       exception Failure

       Raised by parsers when none of the first components of the stream patterns is accepted.

       exception Error of string

       Raised by parsers when the first component of a stream pattern is accepted, but one of the following components is rejected.

       === Stream builders ===

       val from : (int -> 'a option) -> 'a t

       Stream.from  f  returns	a  stream  built  from the function f .  To create a new stream element, the function f is called with the current
       stream count. The user function f must return either Some <value> for a value or None to specify the end of the stream.

       val of_list : 'a list -> 'a t

       Return the stream holding the elements of the list in the same order.

       val of_string : string -> char t

       Return the stream of the characters of the string parameter.

       val of_channel : Pervasives.in_channel -> char t

       Return the stream of the characters read from the input channel.

       === Stream iterator ===

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

       Stream.iter f s scans the whole stream s, applying function f in turn to each stream element encountered.

       === Predefined parsers ===

       val next : 'a t -> 'a

       Return the first element of the stream and remove it from the stream. Raise Stream.Failure if the stream is empty.

       val empty : 'a t -> unit

       Return () if the stream is empty, else raise Stream.Failure .

       === Useful functions ===

       val peek : 'a t -> 'a option

       Return Some of "the first element" of the stream, or None if the stream is empty.

       val junk : 'a t -> unit

       Remove the first element of the stream, possibly unfreezing it before.

       val count : 'a t -> int

       Return the current count of the stream elements, i.e. the number of the stream elements discarded.

       val npeek : int -> 'a t -> 'a list

       npeek n returns the list of the n first elements of the stream, or all its remaining elements if less than n elements are available.

OCamldoc							    2014-06-09								 Stream(3)