Struct core::num::NonZeroI8 1.34.0[−][src]
An integer that is known not to equal zero.
This enables some memory layout optimization.
For example, Option<NonZeroI8> is the same size as i8:
use std::mem::size_of; assert_eq!(size_of::<Option<core::num::NonZeroI8>>(), size_of::<i8>());Run
Implementations
impl NonZeroI8[src]
pub const unsafe fn new_unchecked(n: i8) -> Self1.34.0 (const: 1.34.0)[src]
pub const fn new(n: i8) -> Option<Self>1.34.0 (const: 1.47.0)[src]
Creates a non-zero if the given value is not zero.
pub const fn get(self) -> i81.34.0 (const: 1.34.0)[src]
Returns the value as a primitive type.
impl NonZeroI8[src]
pub fn leading_zeros(self) -> u32[src]
Returns the number of leading zeros in the binary representation of self.
On many architectures, this function can perform better than leading_zeros() on the underlying integer type, as special handling of zero can be avoided.
Examples
Basic usage:
#![feature(nonzero_leading_trailing_zeros)] let n = std::num::NonZeroI8::new(-1i8).unwrap(); assert_eq!(n.leading_zeros(), 0);Run
pub fn trailing_zeros(self) -> u32[src]
Returns the number of trailing zeros in the binary representation
of self.
On many architectures, this function can perform better than trailing_zeros() on the underlying integer type, as special handling of zero can be avoided.
Examples
Basic usage:
#![feature(nonzero_leading_trailing_zeros)] let n = std::num::NonZeroI8::new(0b0101000).unwrap(); assert_eq!(n.trailing_zeros(), 3);Run
Trait Implementations
impl Binary for NonZeroI8[src]
impl BitOr<NonZeroI8> for NonZeroI81.45.0[src]
type Output = Self
The resulting type after applying the | operator.
fn bitor(self, rhs: Self) -> Self::Output[src]
impl BitOr<NonZeroI8> for i81.45.0[src]
type Output = NonZeroI8
The resulting type after applying the | operator.
fn bitor(self, rhs: NonZeroI8) -> Self::Output[src]
impl BitOr<i8> for NonZeroI81.45.0[src]
type Output = Self
The resulting type after applying the | operator.
fn bitor(self, rhs: i8) -> Self::Output[src]
impl BitOrAssign<NonZeroI8> for NonZeroI81.45.0[src]
fn bitor_assign(&mut self, rhs: Self)[src]
impl BitOrAssign<i8> for NonZeroI81.45.0[src]
fn bitor_assign(&mut self, rhs: i8)[src]
impl Clone for NonZeroI8[src]
fn clone(&self) -> NonZeroI8[src]
fn clone_from(&mut self, source: &Self)1.0.0[src]
impl Copy for NonZeroI8[src]
impl Debug for NonZeroI8[src]
impl Display for NonZeroI8[src]
impl Eq for NonZeroI8[src]
impl From<NonZeroI8> for i81.31.0[src]
impl From<NonZeroI8> for NonZeroI161.41.0[src]
Converts NonZeroI8 to NonZeroI16 losslessly.
impl From<NonZeroI8> for NonZeroI321.41.0[src]
Converts NonZeroI8 to NonZeroI32 losslessly.
impl From<NonZeroI8> for NonZeroI641.41.0[src]
Converts NonZeroI8 to NonZeroI64 losslessly.
impl From<NonZeroI8> for NonZeroI1281.41.0[src]
Converts NonZeroI8 to NonZeroI128 losslessly.
impl From<NonZeroI8> for NonZeroIsize1.41.0[src]
Converts NonZeroI8 to NonZeroIsize losslessly.
impl FromStr for NonZeroI81.35.0[src]
type Err = ParseIntError
The associated error which can be returned from parsing.
fn from_str(src: &str) -> Result<Self, Self::Err>[src]
impl Hash for NonZeroI8[src]
fn hash<__H: Hasher>(&self, state: &mut __H)[src]
fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
Self: Sized, 1.3.0[src]
Self: Sized,
impl LowerHex for NonZeroI8[src]
impl Octal for NonZeroI8[src]
impl Ord for NonZeroI8[src]
fn cmp(&self, other: &NonZeroI8) -> Ordering[src]
#[must_use]fn max(self, other: Self) -> Self where
Self: Sized, 1.21.0[src]
Self: Sized,
#[must_use]fn min(self, other: Self) -> Self where
Self: Sized, 1.21.0[src]
Self: Sized,
#[must_use]fn clamp(self, min: Self, max: Self) -> Self where
Self: Sized, 1.50.0[src]
Self: Sized,
impl PartialEq<NonZeroI8> for NonZeroI8[src]
impl PartialOrd<NonZeroI8> for NonZeroI8[src]
fn partial_cmp(&self, other: &NonZeroI8) -> Option<Ordering>[src]
#[must_use]fn lt(&self, other: &Rhs) -> bool1.0.0[src]
#[must_use]fn le(&self, other: &Rhs) -> bool1.0.0[src]
#[must_use]fn gt(&self, other: &Rhs) -> bool1.0.0[src]
#[must_use]fn ge(&self, other: &Rhs) -> bool1.0.0[src]
impl StructuralEq for NonZeroI8[src]
impl StructuralPartialEq for NonZeroI8[src]
impl TryFrom<NonZeroI128> for NonZeroI81.49.0[src]
Attempts to convert NonZeroI128 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI128) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI16> for NonZeroI81.49.0[src]
Attempts to convert NonZeroI16 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI16) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI32> for NonZeroI81.49.0[src]
Attempts to convert NonZeroI32 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI32) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI64> for NonZeroI81.49.0[src]
Attempts to convert NonZeroI64 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI64) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI8> for NonZeroU81.49.0[src]
Attempts to convert NonZeroI8 to NonZeroU8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI8) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI8> for NonZeroU161.49.0[src]
Attempts to convert NonZeroI8 to NonZeroU16.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI8) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI8> for NonZeroU321.49.0[src]
Attempts to convert NonZeroI8 to NonZeroU32.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI8) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI8> for NonZeroU641.49.0[src]
Attempts to convert NonZeroI8 to NonZeroU64.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI8) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI8> for NonZeroU1281.49.0[src]
Attempts to convert NonZeroI8 to NonZeroU128.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI8) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroI8> for NonZeroUsize1.49.0[src]
Attempts to convert NonZeroI8 to NonZeroUsize.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroI8) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroIsize> for NonZeroI81.49.0[src]
Attempts to convert NonZeroIsize to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroIsize) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroU128> for NonZeroI81.49.0[src]
Attempts to convert NonZeroU128 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroU128) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroU16> for NonZeroI81.49.0[src]
Attempts to convert NonZeroU16 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroU16) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroU32> for NonZeroI81.49.0[src]
Attempts to convert NonZeroU32 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroU32) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroU64> for NonZeroI81.49.0[src]
Attempts to convert NonZeroU64 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroU64) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroU8> for NonZeroI81.49.0[src]
Attempts to convert NonZeroU8 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroU8) -> Result<Self, Self::Error>[src]
impl TryFrom<NonZeroUsize> for NonZeroI81.49.0[src]
Attempts to convert NonZeroUsize to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: NonZeroUsize) -> Result<Self, Self::Error>[src]
impl TryFrom<i8> for NonZeroI81.46.0[src]
Attempts to convert i8 to NonZeroI8.
type Error = TryFromIntError
The type returned in the event of a conversion error.
fn try_from(value: i8) -> Result<Self, Self::Error>[src]
impl UpperHex for NonZeroI8[src]
Auto Trait Implementations
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut Self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,