1.28.0[−][src]Struct sp_std::num::NonZeroUsize
An integer that is known not to equal zero.
This enables some memory layout optimization.
For example, Option<NonZeroUsize>
is the same size as usize
:
use std::mem::size_of; assert_eq!(size_of::<Option<core::num::NonZeroUsize>>(), size_of::<usize>());
Implementations
impl NonZeroUsize
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pub const unsafe fn new_unchecked(n: usize) -> NonZeroUsize
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pub const fn new(n: usize) -> Option<NonZeroUsize>
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Creates a non-zero if the given value is not zero.
pub const fn get(self) -> usize
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Returns the value as a primitive type.
Trait Implementations
impl Binary for NonZeroUsize
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impl BitOr<NonZeroUsize> for usize
1.45.0[src]
type Output = NonZeroUsize
The resulting type after applying the |
operator.
fn bitor(self, rhs: NonZeroUsize) -> <usize as BitOr<NonZeroUsize>>::Output
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impl BitOr<NonZeroUsize> for NonZeroUsize
1.45.0[src]
type Output = NonZeroUsize
The resulting type after applying the |
operator.
fn bitor(
self,
rhs: NonZeroUsize
) -> <NonZeroUsize as BitOr<NonZeroUsize>>::Output
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self,
rhs: NonZeroUsize
) -> <NonZeroUsize as BitOr<NonZeroUsize>>::Output
impl BitOr<usize> for NonZeroUsize
1.45.0[src]
type Output = NonZeroUsize
The resulting type after applying the |
operator.
fn bitor(self, rhs: usize) -> <NonZeroUsize as BitOr<usize>>::Output
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impl BitOrAssign<NonZeroUsize> for NonZeroUsize
1.45.0[src]
fn bitor_assign(&mut self, rhs: NonZeroUsize)
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impl BitOrAssign<usize> for NonZeroUsize
1.45.0[src]
fn bitor_assign(&mut self, rhs: usize)
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impl Clone for NonZeroUsize
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fn clone(&self) -> NonZeroUsize
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fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Copy for NonZeroUsize
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impl Debug for NonZeroUsize
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impl Display for NonZeroUsize
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impl Eq for NonZeroUsize
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impl From<NonZeroU16> for NonZeroUsize
1.41.0[src]
Converts NonZeroU16
to NonZeroUsize
losslessly.
fn from(small: NonZeroU16) -> NonZeroUsize
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impl From<NonZeroU8> for NonZeroUsize
1.41.0[src]
Converts NonZeroU8
to NonZeroUsize
losslessly.
fn from(small: NonZeroU8) -> NonZeroUsize
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impl From<NonZeroUsize> for usize
1.31.0[src]
fn from(nonzero: NonZeroUsize) -> usize
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Converts a NonZeroUsize
into an usize
impl FromStr for NonZeroUsize
1.35.0[src]
type Err = ParseIntError
The associated error which can be returned from parsing.
fn from_str(src: &str) -> Result<NonZeroUsize, <NonZeroUsize as FromStr>::Err>
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impl Hash for NonZeroUsize
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fn hash<__H>(&self, state: &mut __H) where
__H: Hasher,
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__H: Hasher,
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl LowerHex for NonZeroUsize
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impl Octal for NonZeroUsize
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impl Ord for NonZeroUsize
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fn cmp(&self, other: &NonZeroUsize) -> Ordering
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#[must_use]fn max(self, other: Self) -> Self
1.21.0[src]
#[must_use]fn min(self, other: Self) -> Self
1.21.0[src]
#[must_use]fn clamp(self, min: Self, max: Self) -> Self
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impl PartialEq<NonZeroUsize> for NonZeroUsize
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fn eq(&self, other: &NonZeroUsize) -> bool
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fn ne(&self, other: &NonZeroUsize) -> bool
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impl PartialOrd<NonZeroUsize> for NonZeroUsize
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fn partial_cmp(&self, other: &NonZeroUsize) -> Option<Ordering>
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fn lt(&self, other: &NonZeroUsize) -> bool
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fn le(&self, other: &NonZeroUsize) -> bool
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fn gt(&self, other: &NonZeroUsize) -> bool
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fn ge(&self, other: &NonZeroUsize) -> bool
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impl TryFrom<usize> for NonZeroUsize
1.46.0[src]
Attempts to convert usize
to NonZeroUsize
.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(
value: usize
) -> Result<NonZeroUsize, <NonZeroUsize as TryFrom<usize>>::Error>
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value: usize
) -> Result<NonZeroUsize, <NonZeroUsize as TryFrom<usize>>::Error>
impl UpperHex for NonZeroUsize
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Auto Trait Implementations
impl RefUnwindSafe for NonZeroUsize
impl Send for NonZeroUsize
impl Sync for NonZeroUsize
impl Unpin for NonZeroUsize
impl UnwindSafe for NonZeroUsize
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
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,
fn borrow_mut(&mut self) -> &mut Tⓘ
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,