std::num

Type Alias NonZeroI8

1.34.0 · Source
pub type NonZeroI8 = NonZero<i8>;
Expand description

An i8 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>>());

Aliased Type§

struct NonZeroI8(/* private fields */);

Implementations

Source§

impl<T> NonZero<T>

1.28.0 (const: 1.47.0) · Source

pub const fn new(n: T) -> Option<NonZero<T>>

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

1.28.0 (const: 1.28.0) · Source

pub const unsafe fn new_unchecked(n: T) -> NonZero<T>

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

§Safety

The value must not be zero.

Source

pub fn from_mut(n: &mut T) -> Option<&mut NonZero<T>>

🔬This is a nightly-only experimental API. (nonzero_from_mut #106290)

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

Source

pub unsafe fn from_mut_unchecked(n: &mut T) -> &mut NonZero<T>

🔬This is a nightly-only experimental API. (nonzero_from_mut #106290)

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

§Safety

The referenced value must not be zero.

1.28.0 (const: 1.34.0) · Source

pub const fn get(self) -> T

Returns the contained value as a primitive type.

Source§

impl NonZero<i8>

1.67.0 · Source

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!(NonZero::<i8>::BITS, i8::BITS);
1.70.0 · Source

pub const MIN: NonZero<i8> = _

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!(NonZero::<i8>::MIN.get(), i8::MIN);
1.70.0 · Source

pub const MAX: NonZero<i8> = _

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!(NonZero::<i8>::MAX.get(), i8::MAX);
1.53.0 (const: 1.53.0) · Source

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 = NonZero::<i8>::new(-1i8)?;

assert_eq!(n.leading_zeros(), 0);
1.53.0 (const: 1.53.0) · Source

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 = NonZero::<i8>::new(0b0101000)?;

assert_eq!(n.trailing_zeros(), 3);
Source

pub const fn count_ones(self) -> NonZero<u32>

🔬This is a nightly-only experimental API. (non_zero_count_ones #120287)

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

§Examples

Basic usage:

#![feature(non_zero_count_ones)]

let a = NonZero::<i8>::new(0b100_0000)?;
let b = NonZero::<i8>::new(0b100_0011)?;

assert_eq!(a.count_ones(), NonZero::new(1)?);
assert_eq!(b.count_ones(), NonZero::new(3)?);
Source

pub const fn rotate_left(self, n: u32) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_bitwise #128281)

Shifts the bits to the left by a specified amount, n, wrapping the truncated bits to the end of the resulting integer.

Please note this isn’t the same operation as the << shifting operator!

§Examples

Basic usage:

#![feature(nonzero_bitwise)]
let n = NonZero::new(-0x7ei8)?;
let m = NonZero::new(0xa)?;

assert_eq!(n.rotate_left(2), m);
Source

pub const fn rotate_right(self, n: u32) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_bitwise #128281)

Shifts the bits to the right by a specified amount, n, wrapping the truncated bits to the beginning of the resulting integer.

Please note this isn’t the same operation as the >> shifting operator!

§Examples

Basic usage:

#![feature(nonzero_bitwise)]
let n = NonZero::new(0xai8)?;
let m = NonZero::new(-0x7e)?;

assert_eq!(n.rotate_right(2), m);
Source

pub const fn swap_bytes(self) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_bitwise #128281)

Reverses the byte order of the integer.

§Examples

Basic usage:

#![feature(nonzero_bitwise)]
let n = NonZero::new(0x12i8)?;
let m = n.swap_bytes();

assert_eq!(m, NonZero::new(0x12)?);
Source

pub const fn reverse_bits(self) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_bitwise #128281)

Reverses the order of bits in the integer. The least significant bit becomes the most significant bit, second least-significant bit becomes second most-significant bit, etc.

§Examples

Basic usage:

#![feature(nonzero_bitwise)]
let n = NonZero::new(0x12i8)?;
let m = n.reverse_bits();

assert_eq!(m, NonZero::new(0x48)?);
Source

pub const fn from_be(x: NonZero<i8>) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_bitwise #128281)

Converts an integer from big endian to the target’s endianness.

On big endian this is a no-op. On little endian the bytes are swapped.

§Examples

Basic usage:

#![feature(nonzero_bitwise)]
use std::num::NonZeroI8;
let n = NonZero::new(0x1Ai8)?;

if cfg!(target_endian = "big") {
    assert_eq!(NonZeroI8::from_be(n), n)
} else {
    assert_eq!(NonZeroI8::from_be(n), n.swap_bytes())
}
Source

pub const fn from_le(x: NonZero<i8>) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_bitwise #128281)

Converts an integer from little endian to the target’s endianness.

On little endian this is a no-op. On big endian the bytes are swapped.

§Examples

Basic usage:

#![feature(nonzero_bitwise)]
use std::num::NonZeroI8;
let n = NonZero::new(0x1Ai8)?;

if cfg!(target_endian = "little") {
    assert_eq!(NonZeroI8::from_le(n), n)
} else {
    assert_eq!(NonZeroI8::from_le(n), n.swap_bytes())
}
Source

pub const fn to_be(self) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_bitwise #128281)

Converts self to big endian from the target’s endianness.

On big endian this is a no-op. On little endian the bytes are swapped.

§Examples

Basic usage:

#![feature(nonzero_bitwise)]
let n = NonZero::new(0x1Ai8)?;

if cfg!(target_endian = "big") {
    assert_eq!(n.to_be(), n)
} else {
    assert_eq!(n.to_be(), n.swap_bytes())
}
Source

pub const fn to_le(self) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_bitwise #128281)

Converts self to little endian from the target’s endianness.

On little endian this is a no-op. On big endian the bytes are swapped.

§Examples

Basic usage:

#![feature(nonzero_bitwise)]
let n = NonZero::new(0x1Ai8)?;

if cfg!(target_endian = "little") {
    assert_eq!(n.to_le(), n)
} else {
    assert_eq!(n.to_le(), n.swap_bytes())
}
1.64.0 (const: 1.64.0) · Source

pub const fn abs(self) -> NonZero<i8>

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

§Example
let pos = NonZero::new(1i8)?;
let neg = NonZero::new(-1i8)?;

assert_eq!(pos, pos.abs());
assert_eq!(pos, neg.abs());
1.64.0 (const: 1.64.0) · Source

pub const fn checked_abs(self) -> Option<NonZero<i8>>

Checked absolute value. Checks for overflow and returns None if self == NonZero::<i8>::MIN. The result cannot be zero.

§Example
let pos = NonZero::new(1i8)?;
let neg = NonZero::new(-1i8)?;
let min = NonZero::new(i8::MIN)?;

assert_eq!(Some(pos), neg.checked_abs());
assert_eq!(None, min.checked_abs());
1.64.0 (const: 1.64.0) · Source

pub const fn overflowing_abs(self) -> (NonZero<i8>, bool)

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

§Example
let pos = NonZero::new(1i8)?;
let neg = NonZero::new(-1i8)?;
let min = NonZero::new(i8::MIN)?;

assert_eq!((pos, false), pos.overflowing_abs());
assert_eq!((pos, false), neg.overflowing_abs());
assert_eq!((min, true), min.overflowing_abs());
1.64.0 (const: 1.64.0) · Source

pub const fn saturating_abs(self) -> NonZero<i8>

Saturating absolute value, see i8::saturating_abs.

§Example
let pos = NonZero::new(1i8)?;
let neg = NonZero::new(-1i8)?;
let min = NonZero::new(i8::MIN)?;
let min_plus = NonZero::new(i8::MIN + 1)?;
let max = NonZero::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());
1.64.0 (const: 1.64.0) · Source

pub const fn wrapping_abs(self) -> NonZero<i8>

Wrapping absolute value, see i8::wrapping_abs.

§Example
let pos = NonZero::new(1i8)?;
let neg = NonZero::new(-1i8)?;
let min = NonZero::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());
1.64.0 (const: 1.64.0) · Source

pub const fn unsigned_abs(self) -> NonZero<u8>

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

§Example
let u_pos = NonZero::new(1u8)?;
let i_pos = NonZero::new(1i8)?;
let i_neg = NonZero::new(-1i8)?;
let i_min = NonZero::new(i8::MIN)?;
let u_max = NonZero::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());
1.71.0 (const: 1.71.0) · Source

pub const fn is_positive(self) -> bool

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

§Example
let pos_five = NonZero::new(5i8)?;
let neg_five = NonZero::new(-5i8)?;

assert!(pos_five.is_positive());
assert!(!neg_five.is_positive());
1.71.0 (const: 1.71.0) · Source

pub const fn is_negative(self) -> bool

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

§Example
let pos_five = NonZero::new(5i8)?;
let neg_five = NonZero::new(-5i8)?;

assert!(neg_five.is_negative());
assert!(!pos_five.is_negative());
1.71.0 (const: 1.71.0) · Source

pub const fn checked_neg(self) -> Option<NonZero<i8>>

Checked negation. Computes -self, returning None if self == NonZero::<i8>::MIN.

§Example
let pos_five = NonZero::new(5i8)?;
let neg_five = NonZero::new(-5i8)?;
let min = NonZero::new(i8::MIN)?;

assert_eq!(pos_five.checked_neg(), Some(neg_five));
assert_eq!(min.checked_neg(), None);
1.71.0 (const: 1.71.0) · Source

pub const fn overflowing_neg(self) -> (NonZero<i8>, bool)

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

See i8::overflowing_neg for documentation on overflow behavior.

§Example
let pos_five = NonZero::new(5i8)?;
let neg_five = NonZero::new(-5i8)?;
let min = NonZero::new(i8::MIN)?;

assert_eq!(pos_five.overflowing_neg(), (neg_five, false));
assert_eq!(min.overflowing_neg(), (min, true));
1.71.0 (const: 1.71.0) · Source

pub const fn saturating_neg(self) -> NonZero<i8>

Saturating negation. Computes -self, returning NonZero::<i8>::MAX if self == NonZero::<i8>::MIN instead of overflowing.

§Example
let pos_five = NonZero::new(5i8)?;
let neg_five = NonZero::new(-5i8)?;
let min = NonZero::new(i8::MIN)?;
let min_plus_one = NonZero::new(i8::MIN + 1)?;
let max = NonZero::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);
1.71.0 (const: 1.71.0) · Source

pub const fn wrapping_neg(self) -> NonZero<i8>

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

See i8::wrapping_neg for documentation on overflow behavior.

§Example
let pos_five = NonZero::new(5i8)?;
let neg_five = NonZero::new(-5i8)?;
let min = NonZero::new(i8::MIN)?;

assert_eq!(pos_five.wrapping_neg(), neg_five);
assert_eq!(min.wrapping_neg(), min);
1.64.0 (const: 1.64.0) · Source

pub const fn checked_mul(self, other: NonZero<i8>) -> Option<NonZero<i8>>

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

assert_eq!(Some(four), two.checked_mul(two));
assert_eq!(None, max.checked_mul(two));
1.64.0 (const: 1.64.0) · Source

pub const fn saturating_mul(self, other: NonZero<i8>) -> NonZero<i8>

Multiplies two non-zero integers together. Return NonZero::<i8>::MAX on overflow.

§Examples
let two = NonZero::new(2i8)?;
let four = NonZero::new(4i8)?;
let max = NonZero::new(i8::MAX)?;

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

pub const unsafe fn unchecked_mul(self, other: NonZero<i8>) -> NonZero<i8>

🔬This is a nightly-only experimental API. (nonzero_ops #84186)

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

§Examples
#![feature(nonzero_ops)]

let two = NonZero::new(2i8)?;
let four = NonZero::new(4i8)?;

assert_eq!(four, unsafe { two.unchecked_mul(two) });
1.64.0 (const: 1.64.0) · Source

pub const fn checked_pow(self, other: u32) -> Option<NonZero<i8>>

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

assert_eq!(Some(twenty_seven), three.checked_pow(3));
assert_eq!(None, half_max.checked_pow(3));
1.64.0 (const: 1.64.0) · Source

pub const fn saturating_pow(self, other: u32) -> NonZero<i8>

Raise non-zero value to an integer power. Return NonZero::<i8>::MIN or NonZero::<i8>::MAX on overflow.

§Examples
let three = NonZero::new(3i8)?;
let twenty_seven = NonZero::new(27i8)?;
let max = NonZero::new(i8::MAX)?;

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

Trait Implementations

1.28.0 · Source§

impl<T> Binary for NonZero<T>

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

Formats the value using the given formatter. Read more
1.45.0 · Source§

impl<T> BitOr<NonZero<T>> for T
where T: ZeroablePrimitive + BitOr<Output = T>,

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type Output = NonZero<T>

The resulting type after applying the | operator.
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fn bitor(self, rhs: NonZero<T>) -> <T as BitOr<NonZero<T>>>::Output

Performs the | operation. Read more
1.45.0 · Source§

impl<T> BitOr<T> for NonZero<T>
where T: ZeroablePrimitive + BitOr<Output = T>,

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type Output = NonZero<T>

The resulting type after applying the | operator.
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fn bitor(self, rhs: T) -> <NonZero<T> as BitOr<T>>::Output

Performs the | operation. Read more
1.45.0 · Source§

impl<T> BitOr for NonZero<T>
where T: ZeroablePrimitive + BitOr<Output = T>,

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type Output = NonZero<T>

The resulting type after applying the | operator.
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fn bitor(self, rhs: NonZero<T>) -> <NonZero<T> as BitOr>::Output

Performs the | operation. Read more
1.45.0 · Source§

impl<T> BitOrAssign<T> for NonZero<T>
where T: ZeroablePrimitive, NonZero<T>: BitOr<T, Output = NonZero<T>>,

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fn bitor_assign(&mut self, rhs: T)

Performs the |= operation. Read more
1.45.0 · Source§

impl<T> BitOrAssign for NonZero<T>
where T: ZeroablePrimitive, NonZero<T>: BitOr<Output = NonZero<T>>,

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fn bitor_assign(&mut self, rhs: NonZero<T>)

Performs the |= operation. Read more
1.28.0 · Source§

impl<T> Clone for NonZero<T>

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fn clone(&self) -> NonZero<T>

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
1.28.0 · Source§

impl<T> Debug for NonZero<T>

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

Formats the value using the given formatter. Read more
1.28.0 · Source§

impl<T> Display for NonZero<T>

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

Formats the value using the given formatter. Read more
1.31.0 · Source§

impl<T> From<NonZero<T>> for T

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fn from(nonzero: NonZero<T>) -> T

Converts to this type from the input type.
1.35.0 · Source§

impl FromStr for NonZero<i8>

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type Err = ParseIntError

The associated error which can be returned from parsing.
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fn from_str(src: &str) -> Result<NonZero<i8>, <NonZero<i8> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.28.0 · Source§

impl<T> Hash for NonZero<T>

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

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

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

Feeds a slice of this type into the given Hasher. Read more
1.84.0 · Source§

impl<T> LowerExp for NonZero<T>

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

Formats the value using the given formatter. Read more
1.28.0 · Source§

impl<T> LowerHex for NonZero<T>

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

Formats the value using the given formatter. Read more
1.71.0 · Source§

impl Neg for NonZero<i8>

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type Output = NonZero<i8>

The resulting type after applying the - operator.
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fn neg(self) -> NonZero<i8>

Performs the unary - operation. Read more
1.28.0 · Source§

impl<T> Octal for NonZero<T>

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

Formats the value using the given formatter. Read more
1.28.0 · Source§

impl<T> Ord for NonZero<T>

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fn cmp(&self, other: &NonZero<T>) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: NonZero<T>) -> NonZero<T>

Compares and returns the maximum of two values. Read more
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fn min(self, other: NonZero<T>) -> NonZero<T>

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: NonZero<T>, max: NonZero<T>) -> NonZero<T>

Restrict a value to a certain interval. Read more
1.28.0 · Source§

impl<T> PartialEq for NonZero<T>

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fn eq(&self, other: &NonZero<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &NonZero<T>) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
1.28.0 · Source§

impl<T> PartialOrd for NonZero<T>

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &NonZero<T>) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &NonZero<T>) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &NonZero<T>) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &NonZero<T>) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.49.0 · Source§

impl TryFrom<NonZero<i128>> for NonZero<i8>

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fn try_from( value: NonZero<i128>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.49.0 · Source§

impl TryFrom<NonZero<i16>> for NonZero<i8>

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fn try_from( value: NonZero<i16>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<i16>>>::Error>

Attempts to convert NonZero<i16> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.49.0 · Source§

impl TryFrom<NonZero<i32>> for NonZero<i8>

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fn try_from( value: NonZero<i32>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<i32>>>::Error>

Attempts to convert NonZero<i32> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.49.0 · Source§

impl TryFrom<NonZero<i64>> for NonZero<i8>

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fn try_from( value: NonZero<i64>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<i64>>>::Error>

Attempts to convert NonZero<i64> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.49.0 · Source§

impl TryFrom<NonZero<isize>> for NonZero<i8>

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

Attempts to convert NonZero<isize> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.49.0 · Source§

impl TryFrom<NonZero<u128>> for NonZero<i8>

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fn try_from( value: NonZero<u128>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
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impl TryFrom<NonZero<u16>> for NonZero<i8>

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fn try_from( value: NonZero<u16>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<u16>>>::Error>

Attempts to convert NonZero<u16> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.49.0 · Source§

impl TryFrom<NonZero<u32>> for NonZero<i8>

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fn try_from( value: NonZero<u32>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<u32>>>::Error>

Attempts to convert NonZero<u32> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
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impl TryFrom<NonZero<u64>> for NonZero<i8>

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fn try_from( value: NonZero<u64>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<u64>>>::Error>

Attempts to convert NonZero<u64> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.49.0 · Source§

impl TryFrom<NonZero<u8>> for NonZero<i8>

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fn try_from( value: NonZero<u8>, ) -> Result<NonZero<i8>, <NonZero<i8> as TryFrom<NonZero<u8>>>::Error>

Attempts to convert NonZero<u8> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.49.0 · Source§

impl TryFrom<NonZero<usize>> for NonZero<i8>

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

Attempts to convert NonZero<usize> to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.46.0 · Source§

impl TryFrom<i8> for NonZero<i8>

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

Attempts to convert i8 to NonZero<i8>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
1.84.0 · Source§

impl<T> UpperExp for NonZero<T>

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

Formats the value using the given formatter. Read more
1.28.0 · Source§

impl<T> UpperHex for NonZero<T>

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

Formats the value using the given formatter. Read more
1.28.0 · Source§

impl<T> Copy for NonZero<T>

1.28.0 · Source§

impl<T> Eq for NonZero<T>
where T: ZeroablePrimitive + Eq,

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impl<T> Freeze for NonZero<T>

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impl<T> RefUnwindSafe for NonZero<T>

1.28.0 · Source§

impl<T> Send for NonZero<T>

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impl<T> StructuralPartialEq for NonZero<T>

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impl<T> Sync for NonZero<T>

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impl<T> Unpin for NonZero<T>

1.28.0 · Source§

impl<T> UnwindSafe for NonZero<T>