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 .

OCamldoc                                           2016-05-05                                          Int64(3o)