Struct gstd::prelude::num::NonZeroI8

pub struct NonZeroI8(/* private fields */);

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>());

Layout

NonZeroI8 is guaranteed to have the same layout and bit validity as i8 with the exception that 0 is not a valid instance. Option<NonZeroI8> is guaranteed to be compatible with i8, including in FFI.

Thanks to the null pointer optimization, NonZeroI8 and Option<NonZeroI8> are guaranteed to have the same size and alignment:

use std::num::NonZeroI8;

assert_eq!(size_of::<NonZeroI8>(), size_of::<Option<NonZeroI8>>());
assert_eq!(align_of::<NonZeroI8>(), align_of::<Option<NonZeroI8>>());

Implementations

impl NonZeroI8

pub const unsafe fn new_unchecked(n: i8) -> NonZeroI8

Creates a non-zero without checking whether the value is non-zero. This results in undefined behaviour if the value is zero.

Safety

The value must not be zero.

pub const fn new(n: i8) -> Option<NonZeroI8>

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

pub unsafe fn from_mut_unchecked(n: &mut i8) -> &mut NonZeroI8

🔬This is a nightly-only experimental API. (nonzero_from_mut)

Converts a primitive mutable reference to a non-zero mutable reference without checking whether the referenced value is non-zero. This results in undefined behavior if *n is zero.

Safety

The referenced value must not be currently zero.

pub fn from_mut(n: &mut i8) -> Option<&mut NonZeroI8>

🔬This is a nightly-only experimental API. (nonzero_from_mut)

Converts a primitive mutable reference to a non-zero mutable reference if the referenced integer is not zero.

pub const fn get(self) -> i8

Returns the value as a primitive type.

pub const BITS: u32 = 8u32

The size of this non-zero integer type in bits.

This value is equal to i8::BITS.

Examples

assert_eq!(NonZeroI8::BITS, i8::BITS);

pub const fn leading_zeros(self) -> u32

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

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);

pub fn count_ones(self) -> NonZeroU32

🔬This is a nightly-only experimental API. (non_zero_count_ones)

Returns the number of ones in the binary representation of self.

Examples

Basic usage:

#![feature(non_zero_count_ones)]

let one = num::NonZeroU32::new(1)?;
let three = num::NonZeroU32::new(3)?;
let a = NonZeroI8::new(0b100_0000)?;
let b = NonZeroI8::new(0b100_0011)?;

assert_eq!(a.count_ones(), one);
assert_eq!(b.count_ones(), three);

pub const MIN: NonZeroI8 = _

The smallest value that can be represented by this non-zero integer type, equal to i8::MIN.

Note: While most integer types are defined for every whole number between MIN and MAX, signed non-zero integers are a special case. They have a “gap” at 0.

Examples

assert_eq!(NonZeroI8::MIN.get(), i8::MIN);

pub const MAX: NonZeroI8 = _

The largest value that can be represented by this non-zero integer type, equal to i8::MAX.

Note: While most integer types are defined for every whole number between MIN and MAX, signed non-zero integers are a special case. They have a “gap” at 0.

Examples

assert_eq!(NonZeroI8::MAX.get(), i8::MAX);

pub const fn abs(self) -> NonZeroI8

Computes the absolute value of self. See i8::abs for documentation on overflow behaviour.

Example

let pos = NonZeroI8::new(1)?;
let neg = NonZeroI8::new(-1)?;

assert_eq!(pos, pos.abs());
assert_eq!(pos, neg.abs());

pub const fn checked_abs(self) -> Option<NonZeroI8>

Checked absolute value. Checks for overflow and returns None if self == NonZeroI8::MIN. The result cannot be zero.

Example

let pos = NonZeroI8::new(1)?;
let neg = NonZeroI8::new(-1)?;
let min = NonZeroI8::new(i8::MIN)?;

assert_eq!(Some(pos), neg.checked_abs());
assert_eq!(None, min.checked_abs());

pub const fn overflowing_abs(self) -> (NonZeroI8, bool)

Computes the absolute value of self, with overflow information, see i8::overflowing_abs.

Example

let pos = NonZeroI8::new(1)?;
let neg = NonZeroI8::new(-1)?;
let min = NonZeroI8::new(i8::MIN)?;

assert_eq!((pos, false), pos.overflowing_abs());
assert_eq!((pos, false), neg.overflowing_abs());
assert_eq!((min, true), min.overflowing_abs());

pub const fn saturating_abs(self) -> NonZeroI8

Saturating absolute value, see i8::saturating_abs.

Example

let pos = NonZeroI8::new(1)?;
let neg = NonZeroI8::new(-1)?;
let min = NonZeroI8::new(i8::MIN)?;
let min_plus = NonZeroI8::new(i8::MIN + 1)?;
let max = NonZeroI8::new(i8::MAX)?;

assert_eq!(pos, pos.saturating_abs());
assert_eq!(pos, neg.saturating_abs());
assert_eq!(max, min.saturating_abs());
assert_eq!(max, min_plus.saturating_abs());

pub const fn wrapping_abs(self) -> NonZeroI8

Wrapping absolute value, see i8::wrapping_abs.

Example

let pos = NonZeroI8::new(1)?;
let neg = NonZeroI8::new(-1)?;
let min = NonZeroI8::new(i8::MIN)?;

assert_eq!(pos, pos.wrapping_abs());
assert_eq!(pos, neg.wrapping_abs());
assert_eq!(min, min.wrapping_abs());
assert_eq!(max, (-max).wrapping_abs());

pub const fn unsigned_abs(self) -> NonZeroU8

Computes the absolute value of self without any wrapping or panicking.

Example

let u_pos = NonZeroU8::new(1)?;
let i_pos = NonZeroI8::new(1)?;
let i_neg = NonZeroI8::new(-1)?;
let i_min = NonZeroI8::new(i8::MIN)?;
let u_max = NonZeroU8::new(u8::MAX / 2 + 1)?;

assert_eq!(u_pos, i_pos.unsigned_abs());
assert_eq!(u_pos, i_neg.unsigned_abs());
assert_eq!(u_max, i_min.unsigned_abs());

pub const fn is_positive(self) -> bool

Returns true if self is positive and false if the number is negative.

Example

let pos_five = NonZeroI8::new(5)?;
let neg_five = NonZeroI8::new(-5)?;

assert!(pos_five.is_positive());
assert!(!neg_five.is_positive());

pub const fn is_negative(self) -> bool

Returns true if self is negative and false if the number is positive.

Example

let pos_five = NonZeroI8::new(5)?;
let neg_five = NonZeroI8::new(-5)?;

assert!(neg_five.is_negative());
assert!(!pos_five.is_negative());

pub const fn checked_neg(self) -> Option<NonZeroI8>

Checked negation. Computes -self, returning None if self == NonZeroI8::MIN.

Example

let pos_five = NonZeroI8::new(5)?;
let neg_five = NonZeroI8::new(-5)?;
let min = NonZeroI8::new(i8::MIN)?;

assert_eq!(pos_five.checked_neg(), Some(neg_five));
assert_eq!(min.checked_neg(), None);

pub const fn overflowing_neg(self) -> (NonZeroI8, bool)

Negates self, overflowing if this is equal to the minimum value.

See i8::overflowing_neg for documentation on overflow behaviour.

Example

let pos_five = NonZeroI8::new(5)?;
let neg_five = NonZeroI8::new(-5)?;
let min = NonZeroI8::new(i8::MIN)?;

assert_eq!(pos_five.overflowing_neg(), (neg_five, false));
assert_eq!(min.overflowing_neg(), (min, true));

pub const fn saturating_neg(self) -> NonZeroI8

Saturating negation. Computes -self, returning NonZeroI8::MAX if self == NonZeroI8::MIN instead of overflowing.

Example

let pos_five = NonZeroI8::new(5)?;
let neg_five = NonZeroI8::new(-5)?;
let min = NonZeroI8::new(i8::MIN)?;
let min_plus_one = NonZeroI8::new(i8::MIN + 1)?;
let max = NonZeroI8::new(i8::MAX)?;

assert_eq!(pos_five.saturating_neg(), neg_five);
assert_eq!(min.saturating_neg(), max);
assert_eq!(max.saturating_neg(), min_plus_one);

pub const fn wrapping_neg(self) -> NonZeroI8

Wrapping (modular) negation. Computes -self, wrapping around at the boundary of the type.

See i8::wrapping_neg for documentation on overflow behaviour.

Example

let pos_five = NonZeroI8::new(5)?;
let neg_five = NonZeroI8::new(-5)?;
let min = NonZeroI8::new(i8::MIN)?;

assert_eq!(pos_five.wrapping_neg(), neg_five);
assert_eq!(min.wrapping_neg(), min);

pub const fn checked_mul(self, other: NonZeroI8) -> Option<NonZeroI8>

Multiplies two non-zero integers together. Checks for overflow and returns None on overflow. As a consequence, the result cannot wrap to zero.

Examples

let two = NonZeroI8::new(2)?;
let four = NonZeroI8::new(4)?;
let max = NonZeroI8::new(i8::MAX)?;

assert_eq!(Some(four), two.checked_mul(two));
assert_eq!(None, max.checked_mul(two));

pub const fn saturating_mul(self, other: NonZeroI8) -> NonZeroI8

Multiplies two non-zero integers together. Return NonZeroI8::MAX on overflow.

Examples

let two = NonZeroI8::new(2)?;
let four = NonZeroI8::new(4)?;
let max = NonZeroI8::new(i8::MAX)?;

assert_eq!(four, two.saturating_mul(two));
assert_eq!(max, four.saturating_mul(max));

pub const unsafe fn unchecked_mul(self, other: NonZeroI8) -> NonZeroI8

🔬This is a nightly-only experimental API. (nonzero_ops)

Multiplies two non-zero integers together, assuming overflow cannot occur. Overflow is unchecked, and it is undefined behaviour to overflow even if the result would wrap to a non-zero value. The behaviour is undefined as soon as self * rhs > i8::MAX, or self * rhs < i8::MIN.

Examples

#![feature(nonzero_ops)]

let two = NonZeroI8::new(2)?;
let four = NonZeroI8::new(4)?;

assert_eq!(four, unsafe { two.unchecked_mul(two) });

pub const fn checked_pow(self, other: u32) -> Option<NonZeroI8>

Raises non-zero value to an integer power. Checks for overflow and returns None on overflow. As a consequence, the result cannot wrap to zero.

Examples

let three = NonZeroI8::new(3)?;
let twenty_seven = NonZeroI8::new(27)?;
let half_max = NonZeroI8::new(i8::MAX / 2)?;

assert_eq!(Some(twenty_seven), three.checked_pow(3));
assert_eq!(None, half_max.checked_pow(3));

pub const fn saturating_pow(self, other: u32) -> NonZeroI8

Raise non-zero value to an integer power. Return NonZeroI8::MIN or NonZeroI8::MAX on overflow.

Examples

let three = NonZeroI8::new(3)?;
let twenty_seven = NonZeroI8::new(27)?;
let max = NonZeroI8::new(i8::MAX)?;

assert_eq!(twenty_seven, three.saturating_pow(3));
assert_eq!(max, max.saturating_pow(3));

Trait Implementations

impl AsBytes for NonZeroI8

fn as_bytes(&self) -> &[u8]

Gets the bytes of this value.

fn write_to(&self, bytes: &mut [u8]) -> Option<()>

Writes a copy of self to bytes.

fn write_to_prefix(&self, bytes: &mut [u8]) -> Option<()>

Writes a copy of self to the prefix of bytes.

fn write_to_suffix(&self, bytes: &mut [u8]) -> Option<()>

Writes a copy of self to the suffix of bytes.

impl Binary for NonZeroI8

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl BitOr<NonZeroI8> for i8

type Output = NonZeroI8

The resulting type after applying the | operator.

fn bitor(self, rhs: NonZeroI8) -> <i8 as BitOr<NonZeroI8>>::Output

Performs the | operation.

impl BitOr<i8> for NonZeroI8

type Output = NonZeroI8

The resulting type after applying the | operator.

fn bitor(self, rhs: i8) -> <NonZeroI8 as BitOr<i8>>::Output

Performs the | operation.

impl BitOr for NonZeroI8

type Output = NonZeroI8

The resulting type after applying the | operator.

fn bitor(self, rhs: NonZeroI8) -> <NonZeroI8 as BitOr>::Output

Performs the | operation.

impl BitOrAssign<i8> for NonZeroI8

fn bitor_assign(&mut self, rhs: i8)

Performs the |= operation.

impl BitOrAssign for NonZeroI8

fn bitor_assign(&mut self, rhs: NonZeroI8)

Performs the |= operation.

impl Clone for NonZeroI8

fn clone(&self) -> NonZeroI8

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NonZeroI8

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Decode for NonZeroI8

fn decode<I>(input: &mut I) -> Result<NonZeroI8, Error>

where I: Input,

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self> ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<'de> Deserialize<'de> for NonZeroI8

fn deserialize<D>( deserializer: D ) -> Result<NonZeroI8, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for NonZeroI8

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Encode for NonZeroI8

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<W>(&self, dest: &mut W)

where W: Output + ?Sized,

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl From<NonZeroI8> for NonZeroI128

fn from(small: NonZeroI8) -> NonZeroI128

Converts NonZeroI8 to NonZeroI128 losslessly.

impl From<NonZeroI8> for NonZeroI16

fn from(small: NonZeroI8) -> NonZeroI16

Converts NonZeroI8 to NonZeroI16 losslessly.

impl From<NonZeroI8> for NonZeroI32

fn from(small: NonZeroI8) -> NonZeroI32

Converts NonZeroI8 to NonZeroI32 losslessly.

impl From<NonZeroI8> for NonZeroI64

fn from(small: NonZeroI8) -> NonZeroI64

Converts NonZeroI8 to NonZeroI64 losslessly.

impl From<NonZeroI8> for NonZeroIsize

fn from(small: NonZeroI8) -> NonZeroIsize

Converts NonZeroI8 to NonZeroIsize losslessly.

impl From<NonZeroI8> for i8

fn from(nonzero: NonZeroI8) -> i8

Converts a NonZeroI8 into an i8

impl FromStr for NonZeroI8

type Err = ParseIntError

The associated error which can be returned from parsing.

fn from_str(src: &str) -> Result<NonZeroI8, <NonZeroI8 as FromStr>::Err>

Parses a string s to return a value of this type.

impl Hash for NonZeroI8

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl LowerHex for NonZeroI8

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl MaxEncodedLen for NonZeroI8

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl Neg for &NonZeroI8

type Output = <NonZeroI8 as Neg>::Output

The resulting type after applying the - operator.

fn neg(self) -> <NonZeroI8 as Neg>::Output

Performs the unary - operation.

impl Neg for NonZeroI8

type Output = NonZeroI8

The resulting type after applying the - operator.

fn neg(self) -> NonZeroI8

Performs the unary - operation.

impl Octal for NonZeroI8

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Ord for NonZeroI8

fn cmp(&self, other: &NonZeroI8) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: NonZeroI8) -> NonZeroI8

Compares and returns the maximum of two values.

fn min(self, other: NonZeroI8) -> NonZeroI8

Compares and returns the minimum of two values.

fn clamp(self, min: NonZeroI8, max: NonZeroI8) -> NonZeroI8

Restrict a value to a certain interval.

impl PartialEq for NonZeroI8

fn eq(&self, other: &NonZeroI8) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &NonZeroI8) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for NonZeroI8

fn partial_cmp(&self, other: &NonZeroI8) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &NonZeroI8) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &NonZeroI8) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &NonZeroI8) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &NonZeroI8) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for NonZeroI8

fn serialize<S>( &self, serializer: S ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<NonZeroI128> for NonZeroI8

fn try_from( value: NonZeroI128 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI128>>::Error>

Attempts to convert NonZeroI128 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI16> for NonZeroI8

fn try_from( value: NonZeroI16 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI16>>::Error>

Attempts to convert NonZeroI16 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI32> for NonZeroI8

fn try_from( value: NonZeroI32 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI32>>::Error>

Attempts to convert NonZeroI32 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI64> for NonZeroI8

fn try_from( value: NonZeroI64 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroI64>>::Error>

Attempts to convert NonZeroI64 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI8> for NonZeroU128

fn try_from( value: NonZeroI8 ) -> Result<NonZeroU128, <NonZeroU128 as TryFrom<NonZeroI8>>::Error>

Attempts to convert NonZeroI8 to NonZeroU128.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI8> for NonZeroU16

fn try_from( value: NonZeroI8 ) -> Result<NonZeroU16, <NonZeroU16 as TryFrom<NonZeroI8>>::Error>

Attempts to convert NonZeroI8 to NonZeroU16.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI8> for NonZeroU32

fn try_from( value: NonZeroI8 ) -> Result<NonZeroU32, <NonZeroU32 as TryFrom<NonZeroI8>>::Error>

Attempts to convert NonZeroI8 to NonZeroU32.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI8> for NonZeroU64

fn try_from( value: NonZeroI8 ) -> Result<NonZeroU64, <NonZeroU64 as TryFrom<NonZeroI8>>::Error>

Attempts to convert NonZeroI8 to NonZeroU64.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI8> for NonZeroU8

fn try_from( value: NonZeroI8 ) -> Result<NonZeroU8, <NonZeroU8 as TryFrom<NonZeroI8>>::Error>

Attempts to convert NonZeroI8 to NonZeroU8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroI8> for NonZeroUsize

fn try_from( value: NonZeroI8 ) -> Result<NonZeroUsize, <NonZeroUsize as TryFrom<NonZeroI8>>::Error>

Attempts to convert NonZeroI8 to NonZeroUsize.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroIsize> for NonZeroI8

fn try_from( value: NonZeroIsize ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroIsize>>::Error>

Attempts to convert NonZeroIsize to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroU128> for NonZeroI8

fn try_from( value: NonZeroU128 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU128>>::Error>

Attempts to convert NonZeroU128 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroU16> for NonZeroI8

fn try_from( value: NonZeroU16 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU16>>::Error>

Attempts to convert NonZeroU16 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroU32> for NonZeroI8

fn try_from( value: NonZeroU32 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU32>>::Error>

Attempts to convert NonZeroU32 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroU64> for NonZeroI8

fn try_from( value: NonZeroU64 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU64>>::Error>

Attempts to convert NonZeroU64 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroU8> for NonZeroI8

fn try_from( value: NonZeroU8 ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroU8>>::Error>

Attempts to convert NonZeroU8 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<NonZeroUsize> for NonZeroI8

fn try_from( value: NonZeroUsize ) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<NonZeroUsize>>::Error>

Attempts to convert NonZeroUsize to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TryFrom<i8> for NonZeroI8

fn try_from(value: i8) -> Result<NonZeroI8, <NonZeroI8 as TryFrom<i8>>::Error>

Attempts to convert i8 to NonZeroI8.

type Error = TryFromIntError

The type returned in the event of a conversion error.

impl TypeInfo for NonZeroI8

type Identity = NonZeroI8

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl UpperHex for NonZeroI8

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl ConstEncodedLen for NonZeroI8

impl Copy for NonZeroI8

impl Eq for NonZeroI8

impl StructuralEq for NonZeroI8

impl StructuralPartialEq for NonZeroI8

impl Unaligned for NonZeroI8