Provided by: ocaml-man_5.3.0-2_all 
NAME
Targetint - Target processor-native integers.
Module
Module Targetint
Documentation
Module Targetint
: sig end
Target processor-native integers.
This module provides operations on the type of signed 32-bit integers (on 32-bit target platforms) or
signed 64-bit integers (on 64-bit target platforms). This integer type has exactly the same width as
that of a pointer type in the C compiler. All arithmetic operations over are taken modulo 2^32 or 2^64
depending on the word size of the target architecture.
Warning: this module is unstable and part of Compiler_libs .
type t
The type of target integers.
val zero : t
The target integer 0.
val one : t
The target integer 1.
val minus_one : t
The target integer -1.
val neg : t -> t
Unary negation.
val add : t -> t -> t
Addition.
val sub : t -> t -> t
Subtraction.
val mul : t -> t -> t
Multiplication.
val div : t -> t -> t
Integer division. Raise Division_by_zero if the second argument is zero. This division rounds the real
quotient of its arguments towards zero, as specified for (/) .
val unsigned_div : t -> t -> t
Same as Targetint.div , except that arguments and result are interpreted as unsigned integers.
val rem : t -> t -> t
Integer remainder. If y is not zero, the result of Targetint.rem x y satisfies the following properties:
Targetint.zero <= Nativeint.rem x y < Targetint.abs y and x = Targetint.add (Targetint.mul (Targetint.div
x y) y)
(Targetint.rem x y) . If y = 0 , Targetint.rem x y raises Division_by_zero .
val unsigned_rem : t -> t -> t
Same as Targetint.rem , except that arguments and result are interpreted as unsigned integers.
val succ : t -> t
Successor. Targetint.succ x is Targetint.add x Targetint.one .
val pred : t -> t
Predecessor. Targetint.pred x is Targetint.sub x Targetint.one .
val abs : t -> t
abs x is the absolute value of x . On min_int this is min_int itself and thus remains negative.
val size : int
The size in bits of a target native integer.
val max_int : t
The greatest representable target integer, either 2^31 - 1 on a 32-bit platform, or 2^63 - 1 on a 64-bit
platform.
val min_int : t
The smallest representable target integer, either -2^31 on a 32-bit platform, or -2^63 on a 64-bit
platform.
val logand : t -> t -> t
Bitwise logical and.
val logor : t -> t -> t
Bitwise logical or.
val logxor : t -> t -> t
Bitwise logical exclusive or.
val lognot : t -> t
Bitwise logical negation.
val shift_left : t -> int -> t
Targetint.shift_left x y shifts x to the left by y bits. The result is unspecified if y < 0 or y >=
bitsize , where bitsize is 32 on a 32-bit platform and 64 on a 64-bit platform.
val shift_right : t -> int -> t
Targetint.shift_right x y shifts x to the right by y bits. This is an arithmetic shift: the sign bit of
x is replicated and inserted in the vacated bits. The result is unspecified if y < 0 or y >= bitsize .
val shift_right_logical : t -> int -> t
Targetint.shift_right_logical x y shifts x to the right by y bits. This is a logical shift: zeroes are
inserted in the vacated bits regardless of the sign of x . The result is unspecified if y < 0 or y >=
bitsize .
val of_int : int -> t
Convert the given integer (type int ) to a target integer (type t ), module the target word size.
val of_int_exn : int -> t
Convert the given integer (type int ) to a target integer (type t ). Raises a fatal error if the
conversion is not exact.
val to_int : t -> int
Convert the given target integer (type t ) to an integer (type int ). The high-order bit is lost during
the conversion.
val of_float : float -> t
Convert the given floating-point number to a target integer, discarding the fractional part (truncate
towards 0). The result of the conversion is undefined if, after truncation, the number is outside the
range [ Targetint.min_int , Targetint.max_int ].
val to_float : t -> float
Convert the given target integer to a floating-point number.
val of_int32 : int32 -> t
Convert the given 32-bit integer (type int32 ) to a target integer.
val to_int32 : t -> int32
Convert the given target integer to a 32-bit integer (type int32 ). On 64-bit platforms, the 64-bit
native integer is taken modulo 2^32, i.e. the top 32 bits are lost. On 32-bit platforms, the conversion
is exact.
val of_int64 : int64 -> t
Convert the given 64-bit integer (type int64 ) to a target integer.
val to_int64 : t -> int64
Convert the given target integer to a 64-bit integer (type int64 ).
val of_string : string -> t
Convert the given string to a target integer. The string is read in decimal (by default) or in
hexadecimal, octal or binary if the string begins with 0x , 0o or 0b respectively. Raise Failure
"int_of_string" if the given string is not a valid representation of an integer, or if the integer
represented exceeds the range of integers representable in type nativeint .
val to_string : t -> string
Return the string representation of its argument, in decimal.
val compare : t -> t -> int
The comparison function for target integers, with the same specification as compare . Along with the
type t , this function compare allows the module Targetint to be passed as argument to the functors
Set.Make and Map.Make .
val unsigned_compare : t -> t -> int
Same as Targetint.compare , except that arguments are interpreted as unsigned integers.
val equal : t -> t -> bool
The equal function for target ints.
type repr =
| Int32 of int32
| Int64 of int64
val repr : t -> repr
The concrete representation of a native integer.
val print : Format.formatter -> t -> unit
Print a target integer to a formatter.