package tezos-protocol-014-PtKathma

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package tezos-protocol-014-PtKathma
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type repr

Internal representation of the Tez currency. Behaves mostly like a natural number where number 1 represents 1/1,000,000 Tez (1 micro-Tez or mutez). It's protected from ever becoming negative and overflowing by special arithmetic functions, which fail in case something undesired would happen. When divided, it's always rounded down to 1 mutez.

Internally encoded as int64, which may be relevant to guard against overflow errors.

type t =
  1. | Tez_tag of repr

t is made algebraic in order to distinguish it from the other type parameters of Script_typed_ir.ty.

type tez = t
val zero : t
val one_mutez : t
val one_cent : t
val fifty_cents : t
val one : t
val max_mutez : t
val sub_opt : t -> t -> t option

Same as ( -? ) but returns None instead of an error.

val to_mutez : t -> int64
val of_mutez : int64 -> t option

of_mutez n (micro tez) is None if n is negative

val of_mutez_exn : int64 -> t

of_mutez_exn n fails if n is negative. It should only be used at toplevel for constants.

val mul_exn : t -> int -> t

It should only be used at toplevel for constants.

val div_exn : t -> int -> t

It should only be used at toplevel for constants.

include Tezos_protocol_environment_014_PtKathma.Compare.S with type t := t
val (=) : t -> t -> bool
val (<>) : t -> t -> bool
val (<) : t -> t -> bool
val (<=) : t -> t -> bool
val (>=) : t -> t -> bool
val (>) : t -> t -> bool
val compare : t -> t -> int
val equal : t -> t -> bool
val max : t -> t -> t
val min : t -> t -> t
val of_string : string -> t option
val to_string : t -> string
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