Struct sp_std::num::NonZeroU8

#[repr(transparent)]pub struct NonZeroU8(_);

An integer that is known not to equal zero.

This enables some memory layout optimization. For example, Option<NonZeroU8> is the same size as u8:

use std::mem::size_of;
assert_eq!(size_of::<Option<core::num::NonZeroU8>>(), size_of::<u8>());

Implementations

impl NonZeroU8

pub const unsafe fn new_unchecked(n: u8) -> NonZeroU8

Creates a non-zero without checking the value.

Safety

The value must not be zero.

pub const fn new(n: u8) -> Option<NonZeroU8>

Creates a non-zero if the given value is not zero.

pub const fn get(self) -> u8

Returns the value as a primitive type.

Trait Implementations

impl Binary for NonZeroU8

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

Formats the value using the given formatter.

impl BitOr<NonZeroU8> for NonZeroU8

type Output = NonZeroU8

The resulting type after applying the | operator.

fn bitor(self, rhs: NonZeroU8) -> <NonZeroU8 as BitOr<NonZeroU8>>::Output

Performs the | operation.

impl BitOr<NonZeroU8> for u8

type Output = NonZeroU8

The resulting type after applying the | operator.

fn bitor(self, rhs: NonZeroU8) -> <u8 as BitOr<NonZeroU8>>::Output

Performs the | operation.

impl BitOr<u8> for NonZeroU8

type Output = NonZeroU8

The resulting type after applying the | operator.

fn bitor(self, rhs: u8) -> <NonZeroU8 as BitOr<u8>>::Output

Performs the | operation.

impl BitOrAssign<NonZeroU8> for NonZeroU8

fn bitor_assign(&mut self, rhs: NonZeroU8)

Performs the |= operation.

impl BitOrAssign<u8> for NonZeroU8

fn bitor_assign(&mut self, rhs: u8)

Performs the |= operation.

impl Clone for NonZeroU8

fn clone(&self) -> NonZeroU8

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for NonZeroU8

impl Debug for NonZeroU8

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

Formats the value using the given formatter.

impl Display for NonZeroU8

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

Formats the value using the given formatter.

impl Eq for NonZeroU8

impl From<NonZeroU8> for NonZeroU128

Converts NonZeroU8 to NonZeroU128 losslessly.

fn from(small: NonZeroU8) -> NonZeroU128

Performs the conversion.

impl From<NonZeroU8> for NonZeroI128

Converts NonZeroU8 to NonZeroI128 losslessly.

fn from(small: NonZeroU8) -> NonZeroI128

Performs the conversion.

impl From<NonZeroU8> for NonZeroI64

Converts NonZeroU8 to NonZeroI64 losslessly.

fn from(small: NonZeroU8) -> NonZeroI64

Performs the conversion.

impl From<NonZeroU8> for NonZeroUsize

Converts NonZeroU8 to NonZeroUsize losslessly.

fn from(small: NonZeroU8) -> NonZeroUsize

Performs the conversion.

impl From<NonZeroU8> for NonZeroI16

Converts NonZeroU8 to NonZeroI16 losslessly.

fn from(small: NonZeroU8) -> NonZeroI16

Performs the conversion.

impl From<NonZeroU8> for NonZeroU64

Converts NonZeroU8 to NonZeroU64 losslessly.

fn from(small: NonZeroU8) -> NonZeroU64

Performs the conversion.

impl From<NonZeroU8> for u8

fn from(nonzero: NonZeroU8) -> u8

Converts a NonZeroU8 into an u8

impl From<NonZeroU8> for NonZeroU32

Converts NonZeroU8 to NonZeroU32 losslessly.

fn from(small: NonZeroU8) -> NonZeroU32

Performs the conversion.

impl From<NonZeroU8> for NonZeroI32

Converts NonZeroU8 to NonZeroI32 losslessly.

fn from(small: NonZeroU8) -> NonZeroI32

Performs the conversion.

impl From<NonZeroU8> for NonZeroU16

Converts NonZeroU8 to NonZeroU16 losslessly.

fn from(small: NonZeroU8) -> NonZeroU16

Performs the conversion.

impl From<NonZeroU8> for NonZeroIsize

Converts NonZeroU8 to NonZeroIsize losslessly.

fn from(small: NonZeroU8) -> NonZeroIsize

Performs the conversion.

impl FromStr for NonZeroU8

type Err = ParseIntError

The associated error which can be returned from parsing.

fn from_str(src: &str) -> Result<NonZeroU8, <NonZeroU8 as FromStr>::Err>

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

impl Hash for NonZeroU8

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

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 LowerHex for NonZeroU8

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

Formats the value using the given formatter.

impl Octal for NonZeroU8

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

Formats the value using the given formatter.

impl Ord for NonZeroU8

fn cmp(&self, other: &NonZeroU8) -> 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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<NonZeroU8> for NonZeroU8

fn eq(&self, other: &NonZeroU8) -> bool

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

fn ne(&self, other: &NonZeroU8) -> bool

This method tests for !=.

impl PartialOrd<NonZeroU8> for NonZeroU8

fn partial_cmp(&self, other: &NonZeroU8) -> Option<Ordering>

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

fn lt(&self, other: &NonZeroU8) -> bool

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

fn le(&self, other: &NonZeroU8) -> bool

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

fn gt(&self, other: &NonZeroU8) -> bool

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

fn ge(&self, other: &NonZeroU8) -> bool

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

impl StructuralEq for NonZeroU8

impl StructuralPartialEq for NonZeroU8

impl TryFrom<u8> for NonZeroU8

Attempts to convert u8 to NonZeroU8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<NonZeroU8, <NonZeroU8 as TryFrom<u8>>::Error>

Performs the conversion.

impl UpperHex for NonZeroU8

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

Formats the value using the given formatter.