Trait option_operations::add::OptionSaturatingAdd

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

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

Trait for values and Options saturating addition.

Implementing this trait leads to the following auto-implementations:

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

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

Required Associated Types

type Output

The resulting inner type after applying the addition.

Required Methods

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

Computes the addition saturating at the numeric bounds instead of overflowing.

Returns None if at least one argument is None.

Implementations on Foreign Types

impl OptionSaturatingAdd for i8

type Output = i8

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

impl OptionSaturatingAdd for i16

type Output = i16

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

impl OptionSaturatingAdd for i32

type Output = i32

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

impl OptionSaturatingAdd for i64

type Output = i64

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

impl OptionSaturatingAdd for i128

type Output = i128

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

impl OptionSaturatingAdd for u8

type Output = u8

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

impl OptionSaturatingAdd for u16

type Output = u16

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

impl OptionSaturatingAdd for u32

type Output = u32

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

impl OptionSaturatingAdd for u64

type Output = u64

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

impl OptionSaturatingAdd for u128

type Output = u128

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

impl OptionSaturatingAdd for Duration

type Output = Duration

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

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

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

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

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

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

where T: OptionOperations + OptionSaturatingAdd<InnerRhs>,

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

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

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

where T: OptionOperations + OptionSaturatingAdd<Rhs>,

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

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

Implementors

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

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

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

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

where T: OptionOperations + OptionSaturatingAdd<InnerRhs>,

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