Struct monero::util::amount::SignedAmount

pub struct SignedAmount(_);

Represent an signed quantity of Monero, internally as signed monero.

The SignedAmount type can be used to express Monero amounts that supports arithmetic and conversion to various denominations.

Implementations

impl SignedAmount

pub const ZERO: SignedAmount

The zero amount.

pub const ONE_PICO: SignedAmount

Exactly one piconero.

pub const ONE_XMR: SignedAmount

Exactly one monero.

pub fn from_pico(piconero: i64) -> SignedAmount

Create an SignedAmount with piconero precision and the given number of piconeros.

pub fn as_pico(self) -> i64

Get the number of piconeros in this SignedAmount.

pub fn max_value() -> SignedAmount

The maximum value of an SignedAmount.

pub fn min_value() -> SignedAmount

The minimum value of an SignedAmount.

pub fn from_xmr(xmr: f64) -> Result<SignedAmount, ParsingError>

Convert from a value expressing moneros to an SignedAmount.

pub fn from_str_in(
    s: &str,
    denom: Denomination
) -> Result<SignedAmount, ParsingError>

Parse a decimal string as a value in the given denomination.

Note: This only parses the value string. If you want to parse a value with denomination, use FromStr.

pub fn from_str_with_denomination(s: &str) -> Result<SignedAmount, ParsingError>

Parses amounts with denomination suffix like they are produced with to_string_with_denomination or with fmt::Display.

If you want to parse only the amount without the denomination, use from_str_in.

pub fn to_float_in(self, denom: Denomination) -> f64

Express this SignedAmount as a floating-point value in the given denomination.

Please be aware of the risk of using floating-point numbers.

pub fn as_xmr(self) -> f64

Express this SignedAmount as a floating-point value in Monero.

Equivalent to to_float_in(Denomination::Monero).

Please be aware of the risk of using floating-point numbers.

pub fn from_float_in(
    value: f64,
    denom: Denomination
) -> Result<SignedAmount, ParsingError>

Convert this SignedAmount in floating-point notation with a given denomination. Can return error if the amount is too big, too precise or negative.

Please be aware of the risk of using floating-point numbers.

pub fn fmt_value_in(self, f: &mut dyn Write, denom: Denomination) -> Result

Format the value of this SignedAmount in the given denomination.

Does not include the denomination.

pub fn to_string_in(self, denom: Denomination) -> String

Get a string number of this SignedAmount in the given denomination.

Does not include the denomination.

pub fn to_string_with_denomination(self, denom: Denomination) -> String

Get a formatted string of this SignedAmount in the given denomination, suffixed with the abbreviation for the denomination.

pub fn abs(self) -> SignedAmount

Get the absolute value of this SignedAmount.

pub fn signum(self) -> i64

Returns a number representing sign of this SignedAmount.

• 0 if the amount is zero
• 1 if the amount is positive
• -1 if the amount is negative

pub fn is_positive(self) -> bool

Returns true if this SignedAmount is positive and false if this SignedAmount is zero or negative.

pub fn is_negative(self) -> bool

Returns true if this SignedAmount is negative and false if this SignedAmount is zero or positive.

pub fn checked_abs(self) -> Option<SignedAmount>

Get the absolute value of this SignedAmount. Returns None if overflow occurred. (self == min_value())

pub fn checked_add(self, rhs: SignedAmount) -> Option<SignedAmount>

Checked addition. Returns None if overflow occurred.

pub fn checked_sub(self, rhs: SignedAmount) -> Option<SignedAmount>

Checked subtraction. Returns None if overflow occurred.

pub fn checked_mul(self, rhs: i64) -> Option<SignedAmount>

Checked multiplication. Returns None if overflow occurred.

pub fn checked_div(self, rhs: i64) -> Option<SignedAmount>

Checked integer division. Be aware that integer division loses the remainder if no exact division can be made. Returns None if overflow occurred.

pub fn checked_rem(self, rhs: i64) -> Option<SignedAmount>

Checked remainder. Returns None if overflow occurred.

pub fn positive_sub(self, rhs: SignedAmount) -> Option<SignedAmount>

Subtraction that doesn’t allow negative SignedAmounts. Returns None if either self, rhs or the result is strictly negative.

pub fn to_unsigned(self) -> Result<Amount, ParsingError>

Convert to an unsigned amount.

Trait Implementations

impl Add<SignedAmount> for SignedAmount

type Output = SignedAmount

The resulting type after applying the + operator.

fn add(self, rhs: SignedAmount) -> Self::Output

Performs the + operation.

impl AddAssign<SignedAmount> for SignedAmount

fn add_assign(&mut self, other: SignedAmount)

Performs the += operation.

impl Clone for SignedAmount

fn clone(&self) -> SignedAmount

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SignedAmount

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SignedAmount

fn default() -> Self

Returns the “default value” for a type.

impl Display for SignedAmount

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Div<i64> for SignedAmount

type Output = SignedAmount

The resulting type after applying the / operator.

fn div(self, rhs: i64) -> Self::Output

Performs the / operation.

impl DivAssign<i64> for SignedAmount

fn div_assign(&mut self, rhs: i64)

Performs the /= operation.

impl FromStr for SignedAmount

type Err = ParsingError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for SignedAmount

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Mul<i64> for SignedAmount

type Output = SignedAmount

The resulting type after applying the * operator.

fn mul(self, rhs: i64) -> Self::Output

Performs the * operation.

impl MulAssign<i64> for SignedAmount

fn mul_assign(&mut self, rhs: i64)

Performs the *= operation.

impl Ord for SignedAmount

fn cmp(&self, other: &SignedAmount) -> Ordering

This method returns an Ordering between self and other.

#[must_use]

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<SignedAmount> for SignedAmount

fn eq(&self, other: &SignedAmount) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &SignedAmount) -> bool

This method tests for !=.

impl PartialOrd<SignedAmount> for SignedAmount

fn partial_cmp(&self, other: &SignedAmount) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Rem<i64> for SignedAmount

type Output = SignedAmount

The resulting type after applying the % operator.

fn rem(self, modulus: i64) -> Self

Performs the % operation.

impl RemAssign<i64> for SignedAmount

fn rem_assign(&mut self, modulus: i64)

Performs the %= operation.

impl Sub<SignedAmount> for SignedAmount

type Output = SignedAmount

The resulting type after applying the - operator.

fn sub(self, rhs: SignedAmount) -> Self::Output

Performs the - operation.

impl SubAssign<SignedAmount> for SignedAmount

fn sub_assign(&mut self, other: SignedAmount)

Performs the -= operation.

impl Copy for SignedAmount

impl Eq for SignedAmount

impl StructuralEq for SignedAmount

impl StructuralPartialEq for SignedAmount