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NAME

       Int64 - 64-bit integers.

Module

       Module   Int64

Documentation

       Module Int64
        : sig end

       64-bit integers.

       This  module  provides operations on the type int64 of signed 64-bit integers.  Unlike the
       built-in int type, the type  int64  is  guaranteed  to  be  exactly  64-bit  wide  on  all
       platforms.  All arithmetic operations over int64 are taken modulo 2^{64

       Performance  notice: values of type int64 occupy more memory space than values of type int
       , and arithmetic operations on int64 are generally slower than those on int .   Use  int64
       only when the application requires exact 64-bit arithmetic.

       val zero : int64

       The 64-bit integer 0.

       val one : int64

       The 64-bit integer 1.

       val minus_one : int64

       The 64-bit integer -1.

       val neg : int64 -> int64

       Unary negation.

       val add : int64 -> int64 -> int64

       Addition.

       val sub : int64 -> int64 -> int64

       Subtraction.

       val mul : int64 -> int64 -> int64

       Multiplication.

       val div : int64 -> int64 -> int64

       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 Pervasives.(/) .

       val rem : int64 -> int64 -> int64

       Integer remainder.  If y is not zero, the result of Int64.rem x y satisfies the  following
       property:  x  =  Int64.add  (Int64.mul  (Int64.div  x  y) y) (Int64.rem x y) .  If y = 0 ,
       Int64.rem x y raises Division_by_zero .

       val succ : int64 -> int64

       Successor.  Int64.succ x is Int64.add x Int64.one .

       val pred : int64 -> int64

       Predecessor.  Int64.pred x is Int64.sub x Int64.one .

       val abs : int64 -> int64

       Return the absolute value of its argument.

       val max_int : int64

       The greatest representable 64-bit integer, 2^{63 - 1.

       val min_int : int64

       The smallest representable 64-bit integer, -2^{63.

       val logand : int64 -> int64 -> int64

       Bitwise logical and.

       val logor : int64 -> int64 -> int64

       Bitwise logical or.

       val logxor : int64 -> int64 -> int64

       Bitwise logical exclusive or.

       val lognot : int64 -> int64

       Bitwise logical negation

       val shift_left : int64 -> int -> int64

       Int64.shift_left x y shifts x to the left by y bits.  The result is unspecified if y  <  0
       or y >= 64 .

       val shift_right : int64 -> int -> int64

       Int64.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 >= 64 .

       val shift_right_logical : int64 -> int -> int64

       Int64.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 >= 64 .

       val of_int : int -> int64

       Convert the given integer (type int ) to a 64-bit integer (type int64 ).

       val to_int : int64 -> int

       Convert  the  given  64-bit  integer  (type  int64 ) to an integer (type int ).  On 64-bit
       platforms, the 64-bit integer is taken modulo 2^{63,  i.e.  the  high-order  bit  is  lost
       during  the  conversion.   On  32-bit platforms, the 64-bit integer is taken modulo 2^{31,
       i.e. the top 33 bits are lost during the conversion.

       val of_float : float -> int64

       Convert the given floating-point number to a 64-bit  integer,  discarding  the  fractional
       part  (truncate  towards  0).   The  result  of  the  conversion  is  undefined  if, after
       truncation, the number is outside the range [ Int64.min_int , Int64.max_int ].

       val to_float : int64 -> float

       Convert the given 64-bit integer to a floating-point number.

       val of_int32 : int32 -> int64

       Convert the given 32-bit integer (type int32 ) to a 64-bit integer (type int64 ).

       val to_int32 : int64 -> int32

       Convert the given 64-bit integer (type int64 ) to a 32-bit  integer  (type  int32  ).  The
       64-bit integer is taken modulo 2^{32, i.e. the top 32 bits are lost during the conversion.

       val of_nativeint : nativeint -> int64

       Convert the given native integer (type nativeint ) to a 64-bit integer (type int64 ).

       val to_nativeint : int64 -> nativeint

       Convert  the given 64-bit integer (type int64 ) to a native integer.  On 32-bit platforms,
       the 64-bit integer is taken modulo 2^{32.  On 64-bit platforms, the conversion is exact.

       val of_string : string -> int64

       Convert the given string to a 64-bit 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
       int64 .

       val to_string : int64 -> string

       Return the string representation of its argument, in decimal.

       val bits_of_float : float -> int64

       Return the  internal  representation  of  the  given  float  according  to  the  IEEE  754
       floating-point  'double  format'  bit layout.  Bit 63 of the result represents the sign of
       the float; bits 62 to 52 represent the (biased) exponent;  bits  51  to  0  represent  the
       mantissa.

       val float_of_bits : int64 -> float

       Return  the floating-point number whose internal representation, according to the IEEE 754
       floating-point 'double format' bit layout, is the given int64 .

       type t = int64

       An alias for the type of 64-bit integers.

       val compare : t -> t -> int

       The  comparison  function  for  64-bit  integers,   with   the   same   specification   as
       Pervasives.compare  .   Along  with  the  type t , this function compare allows the module
       Int64 to be passed as argument to the functors Set.Make and Map.Make .