Trait option_operations::mul::OptionWrappingMul

pub trait OptionWrappingMul<Rhs = Self, InnerRhs = Rhs> {
    type Output;

    // Required method
    fn opt_wrapping_mul(self, rhs: Rhs) -> Option<Self::Output>;
}

Trait for values and Options wrapping multiplication.

Implementing this trait leads to the following auto-implementations:

• OptionWrappingMul<Option<InnerRhs>> for T.
• OptionWrappingMul<Rhs> for Option<T>.
• OptionWrappingMul<Option<InnerRhs>> for Option<T>.
• … and some variants with references.

Note that since the std library doesn’t define any WrappingMul trait, users must provide the base implementation for the inner type.

Required Associated Types

type Output

The resulting inner type after applying the multiplication.

Required Methods

fn opt_wrapping_mul(self, rhs: Rhs) -> Option<Self::Output>

Computes the multiplication wrapping at the numeric bounds instead of overflowing.

Returns None if at least one argument is None.

Implementations on Foreign Types

impl OptionWrappingMul for i8

type Output = i8

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for i16

type Output = i16

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for i32

type Output = i32

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for i64

type Output = i64

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for i128

type Output = i128

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for u8

type Output = u8

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for u16

type Output = u16

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for u32

type Output = u32

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for u64

type Output = u64

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl OptionWrappingMul for u128

type Output = u128

fn opt_wrapping_mul(self, rhs: Self) -> Option<Self::Output>

impl<T, InnerRhs> OptionWrappingMul<&Option<InnerRhs>, InnerRhs> for Option<T>

where T: OptionOperations + OptionWrappingMul<InnerRhs>, InnerRhs: Copy,

type Output = <T as OptionWrappingMul<InnerRhs>>::Output

fn opt_wrapping_mul(self, rhs: &Option<InnerRhs>) -> Option<Self::Output>

impl<T, InnerRhs> OptionWrappingMul<Option<InnerRhs>, InnerRhs> for Option<T>

where T: OptionOperations + OptionWrappingMul<InnerRhs>,

type Output = <T as OptionWrappingMul<InnerRhs>>::Output

fn opt_wrapping_mul(self, rhs: Option<InnerRhs>) -> Option<Self::Output>

impl<T, Rhs> OptionWrappingMul<Rhs> for Option<T>

where T: OptionOperations + OptionWrappingMul<Rhs>,

type Output = <T as OptionWrappingMul<Rhs>>::Output

fn opt_wrapping_mul(self, rhs: Rhs) -> Option<Self::Output>

Implementors

impl<T, InnerRhs> OptionWrappingMul<&Option<InnerRhs>, InnerRhs> for T

where T: OptionOperations + OptionWrappingMul<InnerRhs>, InnerRhs: Copy,

type Output = <T as OptionWrappingMul<InnerRhs>>::Output

impl<T, InnerRhs> OptionWrappingMul<Option<InnerRhs>, InnerRhs> for T

where T: OptionOperations + OptionWrappingMul<InnerRhs>,

type Output = <T as OptionWrappingMul<InnerRhs>>::Output