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Struct std::num::NonZeroU64

#[repr(transparent)]pub struct NonZeroU64(_);

An integer that is known not to equal zero.

This enables some memory layout optimization. For example, Option<NonZeroU64> is the same size as u64:

use std::mem::size_of;
assert_eq!(size_of::<Option<core::num::NonZeroU64>>(), size_of::<u64>());

Implementations

impl NonZeroU64[src]

pub const unsafe fn new_unchecked(n: u64) -> NonZeroU64[src]

Creates a non-zero without checking the value.

Safety

The value must not be zero.

pub const fn new(n: u64) -> Option<NonZeroU64>[src]

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

pub const fn get(self) -> u64[src]

Returns the value as a primitive type.

Trait Implementations

impl Binary for NonZeroU64[src]

impl BitOr<NonZeroU64> for NonZeroU64[src]1.45.0

type Output = NonZeroU64

The resulting type after applying the | operator.

impl BitOr<NonZeroU64> for u64[src]1.45.0

type Output = NonZeroU64

The resulting type after applying the | operator.

impl BitOr<u64> for NonZeroU64[src]1.45.0

type Output = NonZeroU64

The resulting type after applying the | operator.

impl BitOrAssign<NonZeroU64> for NonZeroU64[src]1.45.0

impl BitOrAssign<u64> for NonZeroU64[src]1.45.0

impl Clone for NonZeroU64[src]

impl Copy for NonZeroU64[src]

impl Debug for NonZeroU64[src]

impl Display for NonZeroU64[src]

impl Eq for NonZeroU64[src]

impl From<NonZeroU16> for NonZeroU64[src]1.41.0

Converts NonZeroU16 to NonZeroU64 losslessly.

impl From<NonZeroU32> for NonZeroU64[src]1.41.0

Converts NonZeroU32 to NonZeroU64 losslessly.

impl From<NonZeroU64> for u64[src]1.31.0

fn from(nonzero: NonZeroU64) -> u64[src]

Converts a NonZeroU64 into an u64

impl From<NonZeroU64> for NonZeroI128[src]1.41.0

Converts NonZeroU64 to NonZeroI128 losslessly.

impl From<NonZeroU64> for NonZeroU128[src]1.41.0

Converts NonZeroU64 to NonZeroU128 losslessly.

impl From<NonZeroU8> for NonZeroU64[src]1.41.0

Converts NonZeroU8 to NonZeroU64 losslessly.

impl FromStr for NonZeroU64[src]1.35.0

type Err = ParseIntError

The associated error which can be returned from parsing.

impl Hash for NonZeroU64[src]

impl LowerHex for NonZeroU64[src]

impl Octal for NonZeroU64[src]

impl Ord for NonZeroU64[src]

impl PartialEq<NonZeroU64> for NonZeroU64[src]

impl PartialOrd<NonZeroU64> for NonZeroU64[src]

impl StructuralEq for NonZeroU64[src]

impl StructuralPartialEq for NonZeroU64[src]

impl TryFrom<u64> for NonZeroU64[src]1.46.0

Attempts to convert u64 to NonZeroU64.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl UpperHex for NonZeroU64[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/num/struct.NonZeroU64.html