1.28.0[−][src]Struct std::num::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
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pub const unsafe fn new_unchecked(n: u64) -> NonZeroU64
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pub fn new(n: u64) -> Option<NonZeroU64>
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Creates a non-zero if the given value is not zero.
pub const fn get(self) -> u64
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Returns the value as a primitive type.
Trait Implementations
impl Debug for NonZeroU64
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impl UpperHex for NonZeroU64
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impl FromStr for NonZeroU64
1.35.0[src][+]
impl Octal for NonZeroU64
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impl Hash for NonZeroU64
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impl Eq for NonZeroU64
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impl From<NonZeroU64> for u64
1.31.0[src][+]
impl Clone for NonZeroU64
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impl PartialEq<NonZeroU64> for NonZeroU64
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impl Binary for NonZeroU64
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impl PartialOrd<NonZeroU64> for NonZeroU64
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impl Display for NonZeroU64
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impl Ord for NonZeroU64
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impl LowerHex for NonZeroU64
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impl Copy for NonZeroU64
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Auto Trait Implementations
impl UnwindSafe for NonZeroU64
impl RefUnwindSafe for NonZeroU64
impl Unpin for NonZeroU64
impl Send for NonZeroU64
impl Sync for NonZeroU64
Blanket Implementations
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,