Module Stdlib.Int32

Contents

Instructions: Use this module in your project

In the IDE (CLion, Visual Studio Code, Xcode, etc.) you use for your DkSDK project:

  1. Add the following to your project's dependencies/CMakeLists.txt:

    Copy
    DkSDKProject_DeclareAvailable(ocaml
    CONSTRAINT "= 4.14.0"
    FINDLIBS str unix runtime_events threads dynlink)
DkSDKProject_MakeAvailable(ocaml)

  2. Add the Findlib::ocaml library to any desired targets in src/*/CMakeLists.txt:

    Copy
    target_link_libraries(YourPackage_YourLibraryName
     # ... existing libraries, if any ...
     Findlib::ocaml)

  3. Click your IDE's Build button

Not using DkSDK?

FIRST, do one or all of the following:

  1. Run:

    Copy
    opam install ocaml.4.14.0

  2. Edit your dune-project and add:

    Copy
    (package
  (name YourExistingPackage)
  (depends
  ; ... existing dependenices ...
  (ocaml (>= 4.14.0))))

    Then run:

    Copy
    dune build *.opam # if this fails, run: dune build

  3. Edit your <package>.opam file and add:

    Copy
    depends: [
  # ... existing dependencies ...
  "ocaml" {>= "4.14.0"}
]

    Then run:

    Copy
    opam install . --deps-only

FINALLY, add the library to any desired (library)and/or (executable) targets in your **/dune files:

Copy
(library
  (name YourLibrary)
  ; ... existing library options ...
  (libraries
    ; ... existing libraries ...
    ))

(executable
  (name YourExecutable)
  ; ... existing executable options ...
  (libraries
    ; ... existing libraries ...
    ))
val zero : int32

The 32-bit integer 0.

val one : int32

The 32-bit integer 1.

val minus_one : int32

The 32-bit integer -1.

valneg : ``int32-> int32

Unary negation.

valadd : ``int32->``int32-> int32

Addition.

valsub : ``int32->``int32-> int32

Subtraction.

valmul : ``int32->``int32-> int32

Multiplication.

valdiv : ``int32->``int32-> int32

Integer division. This division rounds the real quotient of its arguments towards zero, as specified for [Stdlib.(/)](../<stdlib/#val-( )="">).

  • raises Division_by_zero

    if the second argument is zero.

</stdlib.html#val-(>

valunsigned_div : ``int32->``int32-> int32

Same as div, except that arguments and result are interpreted as unsigned 32-bit integers.

  • since 4.08.0
valrem : ``int32->``int32-> int32

Integer remainder. If y is not zero, the result of Int32.rem x y satisfies the following property: x = Int32.add (Int32.mul (Int32.div x y) y) (Int32.rem x y). If y = 0, Int32.rem x y raises Division_by_zero.

valunsigned_rem : ``int32->``int32-> int32

Same as rem, except that arguments and result are interpreted as unsigned 32-bit integers.

  • since 4.08.0
valsucc : ``int32-> int32

Successor. Int32.succ x is Int32.add x Int32.one.

valpred : ``int32-> int32

Predecessor. Int32.pred x is Int32.sub x Int32.one.

valabs : ``int32-> int32

Return the absolute value of its argument.

val max_int : int32

The greatest representable 32-bit integer, 231 - 1.

val min_int : int32

The smallest representable 32-bit integer, -231.

vallogand : ``int32->``int32-> int32

Bitwise logical and.

vallogor : ``int32->``int32-> int32

Bitwise logical or.

vallogxor : ``int32->``int32-> int32

Bitwise logical exclusive or.

vallognot : ``int32-> int32

Bitwise logical negation.

valshift_left : ``int32->``int-> int32

Int32.shift_left x y shifts x to the left by y bits. The result is unspecified if y < 0 or y >= 32.

valshift_right : ``int32->``int-> int32

Int32.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 >= 32.

valshift_right_logical : ``int32->``int-> int32

Int32.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 >= 32.

valof_int : ``int-> int32

Convert the given integer (type int) to a 32-bit integer (type int32). On 64-bit platforms, the argument is taken modulo 232.

valto_int : ``int32-> int

Convert the given 32-bit integer (type int32) to an integer (type int). On 32-bit platforms, the 32-bit integer is taken modulo 231, i.e. the high-order bit is lost during the conversion. On 64-bit platforms, the conversion is exact.

valunsigned_to_int : ``int32-> ``int option

Same as to_int, but interprets the argument as an unsigned integer. Returns None if the unsigned value of the argument cannot fit into an int.

  • since 4.08.0
valof_float : ``float-> int32

Convert the given floating-point number to a 32-bit integer, discarding the fractional part (truncate towards 0). If the truncated floating-point number is outside the range [Int32.min_int, Int32.max_int], no exception is raised, and an unspecified, platform-dependent integer is returned.

valto_float : ``int32-> float

Convert the given 32-bit integer to a floating-point number.

valof_string : ``string-> int32

Convert the given string to a 32-bit integer. The string is read in decimal (by default, or if the string begins with 0u) or in hexadecimal, octal or binary if the string begins with 0x, 0o or 0b respectively.

The 0u prefix reads the input as an unsigned integer in the range [0, 2*Int32.max_int+1]. If the input exceeds Int32.max_int it is converted to the signed integer Int32.min_int + input - Int32.max_int - 1.

The _ (underscore) character can appear anywhere in the string and is ignored.

  • raises Failure

    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 int32.

valof_string_opt : ``string-> ``int32 option

Same as of_string, but return None instead of raising.

  • since 4.05
valto_string : ``int32-> string

Return the string representation of its argument, in signed decimal.

valbits_of_float : ``float-> int32

Return the internal representation of the given float according to the IEEE 754 floating-point 'single format' bit layout. Bit 31 of the result represents the sign of the float; bits 30 to 23 represent the (biased) exponent; bits 22 to 0 represent the mantissa.

valfloat_of_bits : ``int32-> float

Return the floating-point number whose internal representation, according to the IEEE 754 floating-point 'single format' bit layout, is the given int32.

type t`` = int32

An alias for the type of 32-bit integers.

valcompare :t -> t -> int

The comparison function for 32-bit integers, with the same specification as Stdlib.compare. Along with the type t, this function compare allows the module Int32 to be passed as argument to the functors Set.Make and Map.Make.

valunsigned_compare :t -> t -> int

Same as compare, except that arguments are interpreted as unsigned 32-bit integers.

  • since 4.08.0
valequal :t -> t -> bool

The equal function for int32s.

  • since 4.03.0
valmin :t -> t -> t

Return the smaller of the two arguments.

  • since 4.13.0
valmax :t -> t -> t

Return the greater of the two arguments.

  • since 4.13.0

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