1.28.0[][src]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>());Run

Methods

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 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 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 NonZeroU641.41.0[src]

Converts NonZeroU16 to NonZeroU64 losslessly.

impl From<NonZeroU32> for NonZeroU641.41.0[src]

Converts NonZeroU32 to NonZeroU64 losslessly.

impl From<NonZeroU64> for NonZeroI1281.41.0[src]

Converts NonZeroU64 to NonZeroI128 losslessly.

impl From<NonZeroU64> for u641.31.0[src]

impl From<NonZeroU64> for NonZeroU1281.41.0[src]

Converts NonZeroU64 to NonZeroU128 losslessly.

impl From<NonZeroU8> for NonZeroU641.41.0[src]

Converts NonZeroU8 to NonZeroU64 losslessly.

impl FromStr for NonZeroU641.35.0[src]

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 UpperHex for NonZeroU64[src]

Auto Trait Implementations

impl RefUnwindSafe for NonZeroU64

impl Send for NonZeroU64

impl Sync for NonZeroU64

impl Unpin for NonZeroU64

impl UnwindSafe for NonZeroU64

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 = !

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.