pub trait Mul<Rhs = Self> {
type Output;
// Required method
fn mul(self, rhs: Rhs) -> Self::Output;
}
Expand description
The multiplication operator *
.
Note that Rhs
is Self
by default, but this is not mandatory.
§Examples
§Mul
tipliable rational numbers
use std::ops::Mul;
// By the fundamental theorem of arithmetic, rational numbers in lowest
// terms are unique. So, by keeping `Rational`s in reduced form, we can
// derive `Eq` and `PartialEq`.
#[derive(Debug, Eq, PartialEq)]
struct Rational {
numerator: usize,
denominator: usize,
}
impl Rational {
fn new(numerator: usize, denominator: usize) -> Self {
if denominator == 0 {
panic!("Zero is an invalid denominator!");
}
// Reduce to lowest terms by dividing by the greatest common
// divisor.
let gcd = gcd(numerator, denominator);
Self {
numerator: numerator / gcd,
denominator: denominator / gcd,
}
}
}
impl Mul for Rational {
// The multiplication of rational numbers is a closed operation.
type Output = Self;
fn mul(self, rhs: Self) -> Self {
let numerator = self.numerator * rhs.numerator;
let denominator = self.denominator * rhs.denominator;
Self::new(numerator, denominator)
}
}
// Euclid's two-thousand-year-old algorithm for finding the greatest common
// divisor.
fn gcd(x: usize, y: usize) -> usize {
let mut x = x;
let mut y = y;
while y != 0 {
let t = y;
y = x % y;
x = t;
}
x
}
assert_eq!(Rational::new(1, 2), Rational::new(2, 4));
assert_eq!(Rational::new(2, 3) * Rational::new(3, 4),
Rational::new(1, 2));
§Multiplying vectors by scalars as in linear algebra
use std::ops::Mul;
struct Scalar { value: usize }
#[derive(Debug, PartialEq)]
struct Vector { value: Vec<usize> }
impl Mul<Scalar> for Vector {
type Output = Self;
fn mul(self, rhs: Scalar) -> Self::Output {
Self { value: self.value.iter().map(|v| v * rhs.value).collect() }
}
}
let vector = Vector { value: vec![2, 4, 6] };
let scalar = Scalar { value: 3 };
assert_eq!(vector * scalar, Vector { value: vec![6, 12, 18] });
Required Associated Types§
Required Methods§
Implementors§
1.74.0 · Source§impl Mul for Saturating<i8>
impl Mul for Saturating<i8>
type Output = Saturating<i8>
1.74.0 · Source§impl Mul for Saturating<i16>
impl Mul for Saturating<i16>
type Output = Saturating<i16>
1.74.0 · Source§impl Mul for Saturating<i32>
impl Mul for Saturating<i32>
type Output = Saturating<i32>
1.74.0 · Source§impl Mul for Saturating<i64>
impl Mul for Saturating<i64>
type Output = Saturating<i64>
1.74.0 · Source§impl Mul for Saturating<i128>
impl Mul for Saturating<i128>
type Output = Saturating<i128>
1.74.0 · Source§impl Mul for Saturating<isize>
impl Mul for Saturating<isize>
type Output = Saturating<isize>
1.74.0 · Source§impl Mul for Saturating<u8>
impl Mul for Saturating<u8>
type Output = Saturating<u8>
1.74.0 · Source§impl Mul for Saturating<u16>
impl Mul for Saturating<u16>
type Output = Saturating<u16>
1.74.0 · Source§impl Mul for Saturating<u32>
impl Mul for Saturating<u32>
type Output = Saturating<u32>
1.74.0 · Source§impl Mul for Saturating<u64>
impl Mul for Saturating<u64>
type Output = Saturating<u64>
1.74.0 · Source§impl Mul for Saturating<u128>
impl Mul for Saturating<u128>
type Output = Saturating<u128>
1.74.0 · Source§impl Mul for Saturating<usize>
impl Mul for Saturating<usize>
type Output = Saturating<usize>
Source§impl Mul<&u128> for &multiversx_sc_scenario::imports::RustBigUint
impl Mul<&u128> for &multiversx_sc_scenario::imports::RustBigUint
Source§impl Mul<&usize> for &multiversx_sc_scenario::imports::RustBigUint
impl Mul<&usize> for &multiversx_sc_scenario::imports::RustBigUint
Source§impl Mul<&usize> for multiversx_sc_scenario::imports::RustBigUint
impl Mul<&usize> for multiversx_sc_scenario::imports::RustBigUint
1.74.0 · Source§impl Mul<&Saturating<i8>> for &Saturating<i8>
impl Mul<&Saturating<i8>> for &Saturating<i8>
1.74.0 · Source§impl Mul<&Saturating<i8>> for Saturating<i8>
impl Mul<&Saturating<i8>> for Saturating<i8>
1.74.0 · Source§impl Mul<&Saturating<i16>> for &Saturating<i16>
impl Mul<&Saturating<i16>> for &Saturating<i16>
1.74.0 · Source§impl Mul<&Saturating<i16>> for Saturating<i16>
impl Mul<&Saturating<i16>> for Saturating<i16>
1.74.0 · Source§impl Mul<&Saturating<i32>> for &Saturating<i32>
impl Mul<&Saturating<i32>> for &Saturating<i32>
1.74.0 · Source§impl Mul<&Saturating<i32>> for Saturating<i32>
impl Mul<&Saturating<i32>> for Saturating<i32>
1.74.0 · Source§impl Mul<&Saturating<i64>> for &Saturating<i64>
impl Mul<&Saturating<i64>> for &Saturating<i64>
1.74.0 · Source§impl Mul<&Saturating<i64>> for Saturating<i64>
impl Mul<&Saturating<i64>> for Saturating<i64>
1.74.0 · Source§impl Mul<&Saturating<i128>> for &Saturating<i128>
impl Mul<&Saturating<i128>> for &Saturating<i128>
1.74.0 · Source§impl Mul<&Saturating<i128>> for Saturating<i128>
impl Mul<&Saturating<i128>> for Saturating<i128>
1.74.0 · Source§impl Mul<&Saturating<isize>> for &Saturating<isize>
impl Mul<&Saturating<isize>> for &Saturating<isize>
1.74.0 · Source§impl Mul<&Saturating<isize>> for Saturating<isize>
impl Mul<&Saturating<isize>> for Saturating<isize>
1.74.0 · Source§impl Mul<&Saturating<u8>> for &Saturating<u8>
impl Mul<&Saturating<u8>> for &Saturating<u8>
1.74.0 · Source§impl Mul<&Saturating<u8>> for Saturating<u8>
impl Mul<&Saturating<u8>> for Saturating<u8>
1.74.0 · Source§impl Mul<&Saturating<u16>> for &Saturating<u16>
impl Mul<&Saturating<u16>> for &Saturating<u16>
1.74.0 · Source§impl Mul<&Saturating<u16>> for Saturating<u16>
impl Mul<&Saturating<u16>> for Saturating<u16>
1.74.0 · Source§impl Mul<&Saturating<u32>> for &Saturating<u32>
impl Mul<&Saturating<u32>> for &Saturating<u32>
1.74.0 · Source§impl Mul<&Saturating<u32>> for Saturating<u32>
impl Mul<&Saturating<u32>> for Saturating<u32>
1.74.0 · Source§impl Mul<&Saturating<u64>> for &Saturating<u64>
impl Mul<&Saturating<u64>> for &Saturating<u64>
1.74.0 · Source§impl Mul<&Saturating<u64>> for Saturating<u64>
impl Mul<&Saturating<u64>> for Saturating<u64>
1.74.0 · Source§impl Mul<&Saturating<u128>> for &Saturating<u128>
impl Mul<&Saturating<u128>> for &Saturating<u128>
1.74.0 · Source§impl Mul<&Saturating<u128>> for Saturating<u128>
impl Mul<&Saturating<u128>> for Saturating<u128>
1.74.0 · Source§impl Mul<&Saturating<usize>> for &Saturating<usize>
impl Mul<&Saturating<usize>> for &Saturating<usize>
1.74.0 · Source§impl Mul<&Saturating<usize>> for Saturating<usize>
impl Mul<&Saturating<usize>> for Saturating<usize>
Source§impl Mul<&MontgomeryPoint> for &Scalar
impl Mul<&MontgomeryPoint> for &Scalar
type Output = MontgomeryPoint
Source§impl Mul<&Scalar> for &MontgomeryPoint
Multiply this MontgomeryPoint
by a Scalar
.
impl Mul<&Scalar> for &MontgomeryPoint
Multiply this MontgomeryPoint
by a Scalar
.
type Output = MontgomeryPoint
Source§impl Mul<&BigInt> for &multiversx_sc_scenario::imports::RustBigInt
impl Mul<&BigInt> for &multiversx_sc_scenario::imports::RustBigInt
Source§impl Mul<&BigUint> for &multiversx_sc_scenario::imports::RustBigUint
impl Mul<&BigUint> for &multiversx_sc_scenario::imports::RustBigUint
Source§impl Mul<&BigUint> for multiversx_sc_scenario::imports::RustBigUint
impl Mul<&BigUint> for multiversx_sc_scenario::imports::RustBigUint
Source§impl Mul<usize> for &multiversx_sc_scenario::imports::RustBigUint
impl Mul<usize> for &multiversx_sc_scenario::imports::RustBigUint
Source§impl Mul<EdwardsPoint> for Scalar
impl Mul<EdwardsPoint> for Scalar
type Output = EdwardsPoint
Source§impl Mul<MontgomeryPoint> for Scalar
impl Mul<MontgomeryPoint> for Scalar
type Output = MontgomeryPoint
Source§impl Mul<RistrettoPoint> for Scalar
impl Mul<RistrettoPoint> for Scalar
type Output = RistrettoPoint
Source§impl Mul<Scalar> for EdwardsPoint
impl Mul<Scalar> for EdwardsPoint
type Output = EdwardsPoint
Source§impl Mul<Scalar> for MontgomeryPoint
impl Mul<Scalar> for MontgomeryPoint
type Output = MontgomeryPoint
Source§impl Mul<Scalar> for RistrettoPoint
impl Mul<Scalar> for RistrettoPoint
type Output = RistrettoPoint
Source§impl Mul<BigUint> for &multiversx_sc_scenario::imports::RustBigUint
impl Mul<BigUint> for &multiversx_sc_scenario::imports::RustBigUint
1.74.0 · Source§impl<'a> Mul<Saturating<i8>> for &'a Saturating<i8>
impl<'a> Mul<Saturating<i8>> for &'a Saturating<i8>
1.74.0 · Source§impl<'a> Mul<Saturating<i16>> for &'a Saturating<i16>
impl<'a> Mul<Saturating<i16>> for &'a Saturating<i16>
1.74.0 · Source§impl<'a> Mul<Saturating<i32>> for &'a Saturating<i32>
impl<'a> Mul<Saturating<i32>> for &'a Saturating<i32>
1.74.0 · Source§impl<'a> Mul<Saturating<i64>> for &'a Saturating<i64>
impl<'a> Mul<Saturating<i64>> for &'a Saturating<i64>
1.74.0 · Source§impl<'a> Mul<Saturating<i128>> for &'a Saturating<i128>
impl<'a> Mul<Saturating<i128>> for &'a Saturating<i128>
1.74.0 · Source§impl<'a> Mul<Saturating<isize>> for &'a Saturating<isize>
impl<'a> Mul<Saturating<isize>> for &'a Saturating<isize>
1.74.0 · Source§impl<'a> Mul<Saturating<u8>> for &'a Saturating<u8>
impl<'a> Mul<Saturating<u8>> for &'a Saturating<u8>
1.74.0 · Source§impl<'a> Mul<Saturating<u16>> for &'a Saturating<u16>
impl<'a> Mul<Saturating<u16>> for &'a Saturating<u16>
1.74.0 · Source§impl<'a> Mul<Saturating<u32>> for &'a Saturating<u32>
impl<'a> Mul<Saturating<u32>> for &'a Saturating<u32>
1.74.0 · Source§impl<'a> Mul<Saturating<u64>> for &'a Saturating<u64>
impl<'a> Mul<Saturating<u64>> for &'a Saturating<u64>
1.74.0 · Source§impl<'a> Mul<Saturating<u128>> for &'a Saturating<u128>
impl<'a> Mul<Saturating<u128>> for &'a Saturating<u128>
1.74.0 · Source§impl<'a> Mul<Saturating<usize>> for &'a Saturating<usize>
impl<'a> Mul<Saturating<usize>> for &'a Saturating<usize>
Source§impl<'a> Mul<EdwardsPoint> for &'a Scalar
impl<'a> Mul<EdwardsPoint> for &'a Scalar
type Output = EdwardsPoint
Source§impl<'a> Mul<MontgomeryPoint> for &'a Scalar
impl<'a> Mul<MontgomeryPoint> for &'a Scalar
type Output = MontgomeryPoint
Source§impl<'a> Mul<RistrettoPoint> for &'a Scalar
impl<'a> Mul<RistrettoPoint> for &'a Scalar
type Output = RistrettoPoint
Source§impl<'a> Mul<Scalar> for &'a EdwardsPoint
impl<'a> Mul<Scalar> for &'a EdwardsPoint
type Output = EdwardsPoint
Source§impl<'a> Mul<Scalar> for &'a MontgomeryPoint
impl<'a> Mul<Scalar> for &'a MontgomeryPoint
type Output = MontgomeryPoint
Source§impl<'a> Mul<Scalar> for &'a RistrettoPoint
impl<'a> Mul<Scalar> for &'a RistrettoPoint
type Output = RistrettoPoint
Source§impl<'a, 'b> Mul<&'a EdwardsBasepointTable> for &'b Scalar
impl<'a, 'b> Mul<&'a EdwardsBasepointTable> for &'b Scalar
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'a EdwardsBasepointTableRadix32> for &'b Scalar
impl<'a, 'b> Mul<&'a EdwardsBasepointTableRadix32> for &'b Scalar
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'a EdwardsBasepointTableRadix64> for &'b Scalar
impl<'a, 'b> Mul<&'a EdwardsBasepointTableRadix64> for &'b Scalar
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'a EdwardsBasepointTableRadix128> for &'b Scalar
impl<'a, 'b> Mul<&'a EdwardsBasepointTableRadix128> for &'b Scalar
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'a EdwardsBasepointTableRadix256> for &'b Scalar
impl<'a, 'b> Mul<&'a EdwardsBasepointTableRadix256> for &'b Scalar
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'a RistrettoBasepointTable> for &'b Scalar
impl<'a, 'b> Mul<&'a RistrettoBasepointTable> for &'b Scalar
type Output = RistrettoPoint
Source§impl<'a, 'b> Mul<&'b EdwardsPoint> for &'a Scalar
impl<'a, 'b> Mul<&'b EdwardsPoint> for &'a Scalar
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'b RistrettoPoint> for &'a Scalar
impl<'a, 'b> Mul<&'b RistrettoPoint> for &'a Scalar
type Output = RistrettoPoint
Source§impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTable
impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTable
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTableRadix32
impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTableRadix32
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTableRadix64
impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTableRadix64
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTableRadix128
impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTableRadix128
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTableRadix256
impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsBasepointTableRadix256
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsPoint
impl<'a, 'b> Mul<&'b Scalar> for &'a EdwardsPoint
type Output = EdwardsPoint
Source§impl<'a, 'b> Mul<&'b Scalar> for &'a RistrettoBasepointTable
impl<'a, 'b> Mul<&'b Scalar> for &'a RistrettoBasepointTable
type Output = RistrettoPoint
Source§impl<'a, 'b> Mul<&'b Scalar> for &'a RistrettoPoint
impl<'a, 'b> Mul<&'b Scalar> for &'a RistrettoPoint
type Output = RistrettoPoint
Source§impl<'a, 'b, M> Mul<&'b BigInt<M>> for &'a multiversx_sc_scenario::imports::BigInt<M>where
M: ManagedTypeApi,
impl<'a, 'b, M> Mul<&'b BigInt<M>> for &'a multiversx_sc_scenario::imports::BigInt<M>where
M: ManagedTypeApi,
Source§impl<'a, 'b, M> Mul<&'b BigInt<M>> for &'a multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
impl<'a, 'b, M> Mul<&'b BigInt<M>> for &'a multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
Source§impl<'a, 'b, M> Mul<&'b BigUint<M>> for &'a multiversx_sc_scenario::imports::BigInt<M>where
M: ManagedTypeApi,
impl<'a, 'b, M> Mul<&'b BigUint<M>> for &'a multiversx_sc_scenario::imports::BigInt<M>where
M: ManagedTypeApi,
Source§impl<'a, 'b, M> Mul<&'b BigUint<M>> for &'a multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
impl<'a, 'b, M> Mul<&'b BigUint<M>> for &'a multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
Source§impl<'a, M> Mul<u32> for &'a multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
impl<'a, M> Mul<u32> for &'a multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
Source§impl<'a, M> Mul<u64> for &'a multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
impl<'a, M> Mul<u64> for &'a multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
Source§impl<'b> Mul<&'b EdwardsPoint> for Scalar
impl<'b> Mul<&'b EdwardsPoint> for Scalar
type Output = EdwardsPoint
Source§impl<'b> Mul<&'b MontgomeryPoint> for Scalar
impl<'b> Mul<&'b MontgomeryPoint> for Scalar
type Output = MontgomeryPoint
Source§impl<'b> Mul<&'b RistrettoPoint> for Scalar
impl<'b> Mul<&'b RistrettoPoint> for Scalar
type Output = RistrettoPoint
Source§impl<'b> Mul<&'b Scalar> for EdwardsPoint
impl<'b> Mul<&'b Scalar> for EdwardsPoint
type Output = EdwardsPoint
Source§impl<'b> Mul<&'b Scalar> for MontgomeryPoint
impl<'b> Mul<&'b Scalar> for MontgomeryPoint
type Output = MontgomeryPoint
Source§impl<'b> Mul<&'b Scalar> for RistrettoPoint
impl<'b> Mul<&'b Scalar> for RistrettoPoint
type Output = RistrettoPoint
Source§impl<'b, M> Mul<&'b BigUint<M>> for multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
impl<'b, M> Mul<&'b BigUint<M>> for multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
Source§impl<M> Mul for multiversx_sc_scenario::imports::BigInt<M>where
M: ManagedTypeApi,
impl<M> Mul for multiversx_sc_scenario::imports::BigInt<M>where
M: ManagedTypeApi,
Source§impl<M> Mul for multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
impl<M> Mul for multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
Source§impl<M> Mul<BigInt<M>> for multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
impl<M> Mul<BigInt<M>> for multiversx_sc_scenario::imports::BigUint<M>where
M: ManagedTypeApi,
Source§impl<M> Mul<BigUint<M>> for multiversx_sc_scenario::imports::BigInt<M>where
M: ManagedTypeApi,
impl<M> Mul<BigUint<M>> for multiversx_sc_scenario::imports::BigInt<M>where
M: ManagedTypeApi,
Source§impl<M, D1, D2> Mul<ManagedDecimal<M, D2>> for ManagedDecimal<M, D1>
impl<M, D1, D2> Mul<ManagedDecimal<M, D2>> for ManagedDecimal<M, D1>
Source§impl<M, D1, D2> Mul<ManagedDecimalSigned<M, D2>> for ManagedDecimalSigned<M, D1>
impl<M, D1, D2> Mul<ManagedDecimalSigned<M, D2>> for ManagedDecimalSigned<M, D1>
Source§impl<Ul, B, Ur> Mul<UInt<Ur, B>> for UInt<Ul, B0>
UInt<Ul, B0> * UInt<Ur, B> = UInt<(Ul * UInt<Ur, B>), B0>
impl<Ul, B, Ur> Mul<UInt<Ur, B>> for UInt<Ul, B0>
UInt<Ul, B0> * UInt<Ur, B> = UInt<(Ul * UInt<Ur, B>), B0>
Source§impl<Ul, B, Ur> Mul<UInt<Ur, B>> for UInt<Ul, B1>
UInt<Ul, B1> * UInt<Ur, B> = UInt<(Ul * UInt<Ur, B>), B0> + UInt<Ur, B>
impl<Ul, B, Ur> Mul<UInt<Ur, B>> for UInt<Ul, B1>
UInt<Ul, B1> * UInt<Ur, B> = UInt<(Ul * UInt<Ur, B>), B0> + UInt<Ur, B>