package octez-proto-libs
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doc/octez-proto-libs.protocol-environment/Tezos_protocol_environment/V11/Make/Int64/index.html
Module Make.Int64Source
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 264
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.
Literals for 64-bit integers are suffixed by L:
let zero: int64 = 0L
let one: int64 = 1L
let m_one: int64 = -1LThe 64-bit integer 0.
The 64-bit integer 1.
The 64-bit integer -1.
Unary negation.
Addition.
Subtraction.
Multiplication.
Integer division.
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.
Successor. Int64.succ x is Int64.add x Int64.one.
Predecessor. Int64.pred x is Int64.sub x Int64.one.
Return the absolute value of its argument.
The greatest representable 64-bit integer, 263 - 1.
The smallest representable 64-bit integer, -263.
Bitwise logical and.
Bitwise logical or.
Bitwise logical exclusive or.
Bitwise logical negation.
Int64.shift_left x y shifts x to the left by y bits. The result is unspecified if y < 0 or y >= 64.
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.
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.
Convert the given integer (type int) to a 64-bit integer (type int64).
Convert the given 64-bit integer (type int64) to an integer (type int). On 64-bit platforms, the 64-bit integer is taken modulo 263, i.e. the high-order bit is lost during the conversion. On 32-bit platforms, the 64-bit integer is taken modulo 231, i.e. the top 33 bits are lost during the conversion.
Convert the given 32-bit integer (type int32) to a 64-bit integer (type int64).
Convert the given 64-bit integer (type int64) to a 32-bit integer (type int32). The 64-bit integer is taken modulo 232, i.e. the top 32 bits are lost during the conversion.
Same as of_string, but return None instead of raising.
Return the string representation of its argument, in decimal.
An alias for the type of 64-bit integers.
The comparison function for 64-bit integers, with the same specification as Stdlib.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.