Struct concordium_std::num::NonZeroI8 1.34.0[−][src]
#[repr(transparent)]pub struct NonZeroI8(_);
Expand description
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>());
Implementations
impl NonZeroI8
[src]
impl NonZeroI8
[src]impl NonZeroI8
[src]
impl NonZeroI8
[src]pub const fn leading_zeros(self) -> u32
1.53.0 (const: 1.53.0)[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::NonZeroI8::new(-1i8).unwrap(); assert_eq!(n.leading_zeros(), 0);
pub const fn trailing_zeros(self) -> u32
1.53.0 (const: 1.53.0)[src]
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::NonZeroI8::new(0b0101000).unwrap(); assert_eq!(n.trailing_zeros(), 3);
Trait Implementations
impl BitOrAssign<NonZeroI8> for NonZeroI8
1.45.0[src]
impl BitOrAssign<NonZeroI8> for NonZeroI8
1.45.0[src]pub fn bitor_assign(&mut self, rhs: NonZeroI8)
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pub fn bitor_assign(&mut self, rhs: NonZeroI8)
[src]Performs the |=
operation. Read more
impl BitOrAssign<i8> for NonZeroI8
1.45.0[src]
impl BitOrAssign<i8> for NonZeroI8
1.45.0[src]pub fn bitor_assign(&mut self, rhs: i8)
[src]
pub fn bitor_assign(&mut self, rhs: i8)
[src]Performs the |=
operation. Read more
impl From<NonZeroI8> for NonZeroIsize
1.41.0[src]
impl From<NonZeroI8> for NonZeroIsize
1.41.0[src]pub fn from(small: NonZeroI8) -> NonZeroIsize
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pub fn from(small: NonZeroI8) -> NonZeroIsize
[src]Converts NonZeroI8
to NonZeroIsize
losslessly.
impl From<NonZeroI8> for NonZeroI128
1.41.0[src]
impl From<NonZeroI8> for NonZeroI128
1.41.0[src]pub fn from(small: NonZeroI8) -> NonZeroI128
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pub fn from(small: NonZeroI8) -> NonZeroI128
[src]Converts NonZeroI8
to NonZeroI128
losslessly.
impl From<NonZeroI8> for NonZeroI32
1.41.0[src]
impl From<NonZeroI8> for NonZeroI32
1.41.0[src]pub fn from(small: NonZeroI8) -> NonZeroI32
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pub fn from(small: NonZeroI8) -> NonZeroI32
[src]Converts NonZeroI8
to NonZeroI32
losslessly.
impl From<NonZeroI8> for NonZeroI64
1.41.0[src]
impl From<NonZeroI8> for NonZeroI64
1.41.0[src]pub fn from(small: NonZeroI8) -> NonZeroI64
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pub fn from(small: NonZeroI8) -> NonZeroI64
[src]Converts NonZeroI8
to NonZeroI64
losslessly.
impl From<NonZeroI8> for NonZeroI16
1.41.0[src]
impl From<NonZeroI8> for NonZeroI16
1.41.0[src]pub fn from(small: NonZeroI8) -> NonZeroI16
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pub fn from(small: NonZeroI8) -> NonZeroI16
[src]Converts NonZeroI8
to NonZeroI16
losslessly.
impl Ord for NonZeroI8
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impl Ord for NonZeroI8
[src]impl PartialOrd<NonZeroI8> for NonZeroI8
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impl PartialOrd<NonZeroI8> for NonZeroI8
[src]pub fn partial_cmp(&self, other: &NonZeroI8) -> Option<Ordering>
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pub fn partial_cmp(&self, other: &NonZeroI8) -> Option<Ordering>
[src]This method returns an ordering between self
and other
values if one exists. Read more
#[must_use]fn lt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]fn lt(&self, other: &Rhs) -> bool
1.0.0[src]This method tests less than (for self
and other
) and is used by the <
operator. Read more
#[must_use]fn le(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]fn le(&self, other: &Rhs) -> bool
1.0.0[src]This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
impl TryFrom<NonZeroI128> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroI128> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroI128
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI128>>::Error>
[src]
pub fn try_from(
value: NonZeroI128
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI128>>::Error>
[src]Attempts to convert NonZeroI128
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroI16> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroI16> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroI16
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI16>>::Error>
[src]
pub fn try_from(
value: NonZeroI16
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI16>>::Error>
[src]Attempts to convert NonZeroI16
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroI32> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroI32> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroI32
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI32>>::Error>
[src]
pub fn try_from(
value: NonZeroI32
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI32>>::Error>
[src]Attempts to convert NonZeroI32
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroI64> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroI64> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroI64
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI64>>::Error>
[src]
pub fn try_from(
value: NonZeroI64
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI64>>::Error>
[src]Attempts to convert NonZeroI64
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroI8> for NonZeroUsize
1.49.0[src]
impl TryFrom<NonZeroI8> for NonZeroUsize
1.49.0[src]pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroUsize, <NonZeroUsize as TryFrom<NonZeroI8>>::Error>
[src]
pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroUsize, <NonZeroUsize as TryFrom<NonZeroI8>>::Error>
[src]Attempts to convert NonZeroI8
to NonZeroUsize
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroI8> for NonZeroU128
1.49.0[src]
impl TryFrom<NonZeroI8> for NonZeroU128
1.49.0[src]pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU128, <NonZeroU128 as TryFrom<NonZeroI8>>::Error>
[src]
pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU128, <NonZeroU128 as TryFrom<NonZeroI8>>::Error>
[src]Attempts to convert NonZeroI8
to NonZeroU128
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroI8> for NonZeroU16
1.49.0[src]
impl TryFrom<NonZeroI8> for NonZeroU16
1.49.0[src]pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU16, <NonZeroU16 as TryFrom<NonZeroI8>>::Error>
[src]
pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU16, <NonZeroU16 as TryFrom<NonZeroI8>>::Error>
[src]Attempts to convert NonZeroI8
to NonZeroU16
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroI8> for NonZeroU64
1.49.0[src]
impl TryFrom<NonZeroI8> for NonZeroU64
1.49.0[src]pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU64, <NonZeroU64 as TryFrom<NonZeroI8>>::Error>
[src]
pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU64, <NonZeroU64 as TryFrom<NonZeroI8>>::Error>
[src]Attempts to convert NonZeroI8
to NonZeroU64
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroI8> for NonZeroU32
1.49.0[src]
impl TryFrom<NonZeroI8> for NonZeroU32
1.49.0[src]pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI8>>::Error>
[src]
pub fn try_from(
value: NonZeroI8
) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI8>>::Error>
[src]Attempts to convert NonZeroI8
to NonZeroU32
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroIsize> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroIsize> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroIsize
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroIsize>>::Error>
[src]
pub fn try_from(
value: NonZeroIsize
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroIsize>>::Error>
[src]Attempts to convert NonZeroIsize
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroU128> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroU128> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroU128
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU128>>::Error>
[src]
pub fn try_from(
value: NonZeroU128
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU128>>::Error>
[src]Attempts to convert NonZeroU128
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroU16> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroU16> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroU16
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU16>>::Error>
[src]
pub fn try_from(
value: NonZeroU16
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU16>>::Error>
[src]Attempts to convert NonZeroU16
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroU32> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroU32> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU32>>::Error>
[src]
pub fn try_from(
value: NonZeroU32
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU32>>::Error>
[src]Attempts to convert NonZeroU32
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroU64> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroU64> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroU64
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU64>>::Error>
[src]
pub fn try_from(
value: NonZeroU64
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU64>>::Error>
[src]Attempts to convert NonZeroU64
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl TryFrom<NonZeroUsize> for NonZeroI8
1.49.0[src]
impl TryFrom<NonZeroUsize> for NonZeroI8
1.49.0[src]pub fn try_from(
value: NonZeroUsize
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroUsize>>::Error>
[src]
pub fn try_from(
value: NonZeroUsize
) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroUsize>>::Error>
[src]Attempts to convert NonZeroUsize
to NonZeroI8
.
type Error = TryFromIntError
type Error = TryFromIntError
The type returned in the event of a conversion error.
impl Copy for NonZeroI8
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impl Eq for NonZeroI8
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impl StructuralEq for NonZeroI8
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impl StructuralPartialEq for NonZeroI8
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Auto Trait Implementations
impl RefUnwindSafe for NonZeroI8
impl Send for NonZeroI8
impl Sync for NonZeroI8
impl Unpin for NonZeroI8
impl UnwindSafe for NonZeroI8
Blanket Implementations
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
[src]
pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> ToOwned for T where
T: Clone,
[src]
impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
[src]
pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
[src]
pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more