Struct ockam_core::lib::num::NonZeroU32 1.28.0[−][src]
#[repr(transparent)]pub struct NonZeroU32(_);
An integer that is known not to equal zero.
This enables some memory layout optimization.
For example, Option<NonZeroU32>
is the same size as u32
:
use std::mem::size_of; assert_eq!(size_of::<Option<core::num::NonZeroU32>>(), size_of::<u32>());
Implementations
impl NonZeroU32
[src]
impl NonZeroU32
[src]pub const unsafe fn new_unchecked(n: u32) -> NonZeroU32
1.28.0 (const: 1.28.0)[src]
pub const fn new(n: u32) -> Option<NonZeroU32>
1.28.0 (const: 1.47.0)[src]
Creates a non-zero if the given value is not zero.
pub const fn get(self) -> u32
1.28.0 (const: 1.34.0)[src]
Returns the value as a primitive type.
impl NonZeroU32
[src]
impl NonZeroU32
[src]pub const fn leading_zeros(self) -> u32
1.53.0 (const: 1.53.0)[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:
let n = std::num::NonZeroU32::new(u32::MAX).unwrap(); assert_eq!(n.leading_zeros(), 0);
pub const fn trailing_zeros(self) -> u32
1.53.0 (const: 1.53.0)[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:
let n = std::num::NonZeroU32::new(0b0101000).unwrap(); assert_eq!(n.trailing_zeros(), 3);
impl NonZeroU32
[src]
impl NonZeroU32
[src]pub const fn is_power_of_two(self) -> bool
[src]
nonzero_is_power_of_two
)Returns true
if and only if self == (1 << k)
for some k
.
On many architectures, this function can perform better than is_power_of_two()
on the underlying integer type, as special handling of zero can be avoided.
Examples
Basic usage:
#![feature(nonzero_is_power_of_two)] let eight = std::num::NonZeroU32::new(8).unwrap(); assert!(eight.is_power_of_two()); let ten = std::num::NonZeroU32::new(10).unwrap(); assert!(!ten.is_power_of_two());
Trait Implementations
impl BitOr<NonZeroU32> for NonZeroU32
1.45.0[src]
impl BitOr<NonZeroU32> for NonZeroU32
1.45.0[src]type Output = NonZeroU32
The resulting type after applying the |
operator.
pub fn bitor(self, rhs: NonZeroU32) -> <NonZeroU32 as BitOr<NonZeroU32>>::Output
[src]
impl BitOr<NonZeroU32> for u32
1.45.0[src]
impl BitOr<NonZeroU32> for u32
1.45.0[src]type Output = NonZeroU32
The resulting type after applying the |
operator.
pub fn bitor(self, rhs: NonZeroU32) -> <u32 as BitOr<NonZeroU32>>::Output
[src]
impl BitOr<u32> for NonZeroU32
1.45.0[src]
impl BitOr<u32> for NonZeroU32
1.45.0[src]type Output = NonZeroU32
The resulting type after applying the |
operator.
pub fn bitor(self, rhs: u32) -> <NonZeroU32 as BitOr<u32>>::Output
[src]
impl BitOrAssign<NonZeroU32> for NonZeroU32
1.45.0[src]
impl BitOrAssign<NonZeroU32> for NonZeroU32
1.45.0[src]pub fn bitor_assign(&mut self, rhs: NonZeroU32)
[src]
impl BitOrAssign<u32> for NonZeroU32
1.45.0[src]
impl BitOrAssign<u32> for NonZeroU32
1.45.0[src]pub fn bitor_assign(&mut self, rhs: u32)
[src]
impl Clone for NonZeroU32
[src]
impl Clone for NonZeroU32
[src]pub fn clone(&self) -> NonZeroU32
[src]
pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Copy for NonZeroU32
[src]
impl Copy for NonZeroU32
[src]impl<'de> Deserialize<'de> for NonZeroU32
[src]
impl<'de> Deserialize<'de> for NonZeroU32
[src]pub fn deserialize<D>(
deserializer: D
) -> Result<NonZeroU32, <D as Deserializer<'de>>::Error> where
D: Deserializer<'de>,
[src]
deserializer: D
) -> Result<NonZeroU32, <D as Deserializer<'de>>::Error> where
D: Deserializer<'de>,
impl Div<NonZeroU32> for u32
1.51.0[src]
impl Div<NonZeroU32> for u32
1.51.0[src]impl Eq for NonZeroU32
[src]
impl Eq for NonZeroU32
[src]impl From<NonZeroU16> for NonZeroU32
1.41.0[src]
impl From<NonZeroU16> for NonZeroU32
1.41.0[src]pub fn from(small: NonZeroU16) -> NonZeroU32
[src]
Converts NonZeroU16
to NonZeroU32
losslessly.
impl From<NonZeroU32> for u32
1.31.0[src]
impl From<NonZeroU32> for u32
1.31.0[src]pub fn from(nonzero: NonZeroU32) -> u32
[src]
Converts a NonZeroU32
into an u32
impl From<NonZeroU32> for NonZeroU64
1.41.0[src]
impl From<NonZeroU32> for NonZeroU64
1.41.0[src]pub fn from(small: NonZeroU32) -> NonZeroU64
[src]
Converts NonZeroU32
to NonZeroU64
losslessly.
impl From<NonZeroU32> for NonZeroU128
1.41.0[src]
impl From<NonZeroU32> for NonZeroU128
1.41.0[src]pub fn from(small: NonZeroU32) -> NonZeroU128
[src]
Converts NonZeroU32
to NonZeroU128
losslessly.
impl From<NonZeroU32> for NonZeroI128
1.41.0[src]
impl From<NonZeroU32> for NonZeroI128
1.41.0[src]pub fn from(small: NonZeroU32) -> NonZeroI128
[src]
Converts NonZeroU32
to NonZeroI128
losslessly.
impl From<NonZeroU32> for NonZeroI64
1.41.0[src]
impl From<NonZeroU32> for NonZeroI64
1.41.0[src]pub fn from(small: NonZeroU32) -> NonZeroI64
[src]
Converts NonZeroU32
to NonZeroI64
losslessly.
impl From<NonZeroU32> for Error
[src]
impl From<NonZeroU32> for Error
[src]pub fn from(code: NonZeroU32) -> Error
[src]
impl From<NonZeroU32> for Error
[src]
impl From<NonZeroU32> for Error
[src]pub fn from(code: NonZeroU32) -> Error
[src]
impl From<NonZeroU8> for NonZeroU32
1.41.0[src]
impl From<NonZeroU8> for NonZeroU32
1.41.0[src]pub fn from(small: NonZeroU8) -> NonZeroU32
[src]
Converts NonZeroU8
to NonZeroU32
losslessly.
impl FromStr for NonZeroU32
1.35.0[src]
impl FromStr for NonZeroU32
1.35.0[src]type Err = ParseIntError
The associated error which can be returned from parsing.
pub fn from_str(src: &str) -> Result<NonZeroU32, <NonZeroU32 as FromStr>::Err>
[src]
impl Hash for NonZeroU32
[src]
impl Hash for NonZeroU32
[src]impl Ord for NonZeroU32
[src]
impl Ord for NonZeroU32
[src]impl PartialEq<NonZeroU32> for NonZeroU32
[src]
impl PartialEq<NonZeroU32> for NonZeroU32
[src]pub fn eq(&self, other: &NonZeroU32) -> bool
[src]
pub fn ne(&self, other: &NonZeroU32) -> bool
[src]
impl PartialOrd<NonZeroU32> for NonZeroU32
[src]
impl PartialOrd<NonZeroU32> for NonZeroU32
[src]pub fn partial_cmp(&self, other: &NonZeroU32) -> Option<Ordering>
[src]
#[must_use]pub fn lt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn le(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn gt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]pub fn ge(&self, other: &Rhs) -> bool
1.0.0[src]
impl Rem<NonZeroU32> for u32
1.51.0[src]
impl Rem<NonZeroU32> for u32
1.51.0[src]impl Serialize for NonZeroU32
[src]
impl Serialize for NonZeroU32
[src]pub fn serialize<S>(
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,
[src]
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,
impl StructuralEq for NonZeroU32
[src]
impl StructuralEq for NonZeroU32
[src]impl StructuralPartialEq for NonZeroU32
[src]
impl StructuralPartialEq for NonZeroU32
[src]impl TryFrom<NonZeroI128> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroI128> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroI128
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI128>>::Error>
[src]
value: NonZeroI128
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI128>>::Error>
Attempts to convert NonZeroI128
to NonZeroU32
.
impl TryFrom<NonZeroI16> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroI16> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroI16
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI16>>::Error>
[src]
value: NonZeroI16
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI16>>::Error>
Attempts to convert NonZeroI16
to NonZeroU32
.
impl TryFrom<NonZeroI32> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroI32> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroI32
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI32>>::Error>
[src]
value: NonZeroI32
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI32>>::Error>
Attempts to convert NonZeroI32
to NonZeroU32
.
impl TryFrom<NonZeroI64> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroI64> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroI64
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI64>>::Error>
[src]
value: NonZeroI64
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI64>>::Error>
Attempts to convert NonZeroI64
to NonZeroU32
.
impl TryFrom<NonZeroI8> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroI8> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI8>>::Error>
[src]
value: NonZeroI8
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI8>>::Error>
Attempts to convert NonZeroI8
to NonZeroU32
.
impl TryFrom<NonZeroIsize> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroIsize> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroIsize
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroIsize>>::Error>
[src]
value: NonZeroIsize
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroIsize>>::Error>
Attempts to convert NonZeroIsize
to NonZeroU32
.
impl TryFrom<NonZeroU128> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroU128> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU128
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroU128>>::Error>
[src]
value: NonZeroU128
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroU128>>::Error>
Attempts to convert NonZeroU128
to NonZeroU32
.
impl TryFrom<NonZeroU32> for NonZeroI32
1.49.0[src]
impl TryFrom<NonZeroU32> for NonZeroI32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroI32, <NonZeroI32 as TryFrom<NonZeroU32>>::Error>
[src]
value: NonZeroU32
) -> Result<NonZeroI32, <NonZeroI32 as TryFrom<NonZeroU32>>::Error>
Attempts to convert NonZeroU32
to NonZeroI32
.
impl TryFrom<NonZeroU32> for NonZeroIsize
1.49.0[src]
impl TryFrom<NonZeroU32> for NonZeroIsize
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroIsize, <NonZeroIsize as TryFrom<NonZeroU32>>::Error>
[src]
value: NonZeroU32
) -> Result<NonZeroIsize, <NonZeroIsize as TryFrom<NonZeroU32>>::Error>
Attempts to convert NonZeroU32
to NonZeroIsize
.
impl TryFrom<NonZeroU32> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroU32> for NonZeroI8
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU32>>::Error>
[src]
value: NonZeroU32
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU32>>::Error>
Attempts to convert NonZeroU32
to NonZeroI8
.
impl TryFrom<NonZeroU32> for NonZeroU8
1.49.0[src]
impl TryFrom<NonZeroU32> for NonZeroU8
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroU8, <NonZeroU8 as TryFrom<NonZeroU32>>::Error>
[src]
value: NonZeroU32
) -> Result<NonZeroU8, <NonZeroU8 as TryFrom<NonZeroU32>>::Error>
Attempts to convert NonZeroU32
to NonZeroU8
.
impl TryFrom<NonZeroU32> for NonZeroI16
1.49.0[src]
impl TryFrom<NonZeroU32> for NonZeroI16
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroI16, <NonZeroI16 as TryFrom<NonZeroU32>>::Error>
[src]
value: NonZeroU32
) -> Result<NonZeroI16, <NonZeroI16 as TryFrom<NonZeroU32>>::Error>
Attempts to convert NonZeroU32
to NonZeroI16
.
impl TryFrom<NonZeroU32> for NonZeroUsize
1.49.0[src]
impl TryFrom<NonZeroU32> for NonZeroUsize
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroUsize, <NonZeroUsize as TryFrom<NonZeroU32>>::Error>
[src]
value: NonZeroU32
) -> Result<NonZeroUsize, <NonZeroUsize as TryFrom<NonZeroU32>>::Error>
Attempts to convert NonZeroU32
to NonZeroUsize
.
impl TryFrom<NonZeroU32> for NonZeroU16
1.49.0[src]
impl TryFrom<NonZeroU32> for NonZeroU16
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroU16, <NonZeroU16 as TryFrom<NonZeroU32>>::Error>
[src]
value: NonZeroU32
) -> Result<NonZeroU16, <NonZeroU16 as TryFrom<NonZeroU32>>::Error>
Attempts to convert NonZeroU32
to NonZeroU16
.
impl TryFrom<NonZeroU64> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroU64> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroU64
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroU64>>::Error>
[src]
value: NonZeroU64
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroU64>>::Error>
Attempts to convert NonZeroU64
to NonZeroU32
.
impl TryFrom<NonZeroUsize> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroUsize> for NonZeroU32
1.49.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: NonZeroUsize
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroUsize>>::Error>
[src]
value: NonZeroUsize
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroUsize>>::Error>
Attempts to convert NonZeroUsize
to NonZeroU32
.
impl TryFrom<u32> for NonZeroU32
1.46.0[src]
impl TryFrom<u32> for NonZeroU32
1.46.0[src]type Error = TryFromIntError
The type returned in the event of a conversion error.
pub fn try_from(
value: u32
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<u32>>::Error>
[src]
value: u32
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<u32>>::Error>
Attempts to convert u32
to NonZeroU32
.
Auto Trait Implementations
impl RefUnwindSafe for NonZeroU32
impl RefUnwindSafe for NonZeroU32
impl Send for NonZeroU32
impl Send for NonZeroU32
impl Sync for NonZeroU32
impl Sync for NonZeroU32
impl Unpin for NonZeroU32
impl Unpin for NonZeroU32
impl UnwindSafe for NonZeroU32
impl UnwindSafe for NonZeroU32
Blanket Implementations
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
impl<T> Borrow<T> for T where
T: ?Sized,
[src]pub fn borrow(&self) -> &TⓘNotable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized,
[src]
Notable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized,
[src]
Notable traits for &'_ mut I
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
F: Future + Unpin + ?Sized, type Output = <F as Future>::Output;impl<'_, R> Read for &'_ mut R where
R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
W: Write + ?Sized,
impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
[src]
impl<T> DeserializeOwned for T where
T: for<'de> Deserialize<'de>,
[src]impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,