Trait num::CheckedMul

pub trait CheckedMul: Mul<Self, Output = Self> {
    fn checked_mul(&self, v: &Self) -> Option<Self>;
}

Performs multiplication that returns None instead of wrapping around on underflow or overflow.

Required Methods

fn checked_mul(&self, v: &Self) -> Option<Self>

Multiplies two numbers, checking for underflow or overflow. If underflow or overflow happens, None is returned.

Implementations on Foreign Types

impl CheckedMul for usize

fn checked_mul(&self, v: &usize) -> Option<usize>

impl CheckedMul for isize

fn checked_mul(&self, v: &isize) -> Option<isize>

impl CheckedMul for u16

fn checked_mul(&self, v: &u16) -> Option<u16>

impl CheckedMul for u8

fn checked_mul(&self, v: &u8) -> Option<u8>

impl CheckedMul for i32

fn checked_mul(&self, v: &i32) -> Option<i32>

impl CheckedMul for i8

fn checked_mul(&self, v: &i8) -> Option<i8>

impl CheckedMul for i64

fn checked_mul(&self, v: &i64) -> Option<i64>

impl CheckedMul for i128

fn checked_mul(&self, v: &i128) -> Option<i128>

impl CheckedMul for u64

fn checked_mul(&self, v: &u64) -> Option<u64>

impl CheckedMul for i16

fn checked_mul(&self, v: &i16) -> Option<i16>

impl CheckedMul for u32

fn checked_mul(&self, v: &u32) -> Option<u32>

impl CheckedMul for u128

fn checked_mul(&self, v: &u128) -> Option<u128>

impl<T> CheckedMul for Ratio<T> where     T: Clone + Integer + CheckedMul,

fn checked_mul(&self, rhs: &Ratio<T>) -> Option<Ratio<T>>

Implementors

• impl CheckedMul for BigInt

• impl CheckedMul for BigUint