1.28.0[][src]Struct core::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<std::num::NonZeroU64>>(), size_of::<u64>());Run

Methods

impl NonZeroU64
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Create a non-zero without checking the value.

Safety

The value must not be zero.

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

Returns the value as a primitive type.

Trait Implementations

impl Copy for NonZeroU64
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impl PartialEq<NonZeroU64> for NonZeroU64
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impl Eq for NonZeroU64
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impl Ord for NonZeroU64
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Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

impl PartialOrd<NonZeroU64> for NonZeroU64
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impl Clone for NonZeroU64
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Performs copy-assignment from source. Read more

impl From<NonZeroU64> for u64
1.31.0
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impl Hash for NonZeroU64
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Feeds a slice of this type into the given [Hasher]. Read more

impl Debug for NonZeroU64
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impl Display for NonZeroU64
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impl Octal for NonZeroU64
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impl Binary for NonZeroU64
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impl LowerHex for NonZeroU64
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impl UpperHex for NonZeroU64
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Auto Trait Implementations

impl Send for NonZeroU64

impl Sync for NonZeroU64

Blanket Implementations

impl<T, U> Into for T where
    U: From<T>, 
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impl<T> From for T
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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🔬 This is a nightly-only experimental API. (try_from #33417)

The type returned in the event of a conversion error.

impl<T, U> TryFrom for T where
    T: From<U>, 
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🔬 This is a nightly-only experimental API. (try_from #33417)

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
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impl<T> BorrowMut for T where
    T: ?Sized
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impl<T> Any for T where
    T: 'static + ?Sized
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