Struct serde::lib::num::NonZero

source ·
#[repr(transparent)]
pub struct NonZero<T>(T) where T: ZeroablePrimitive;
🔬This is a nightly-only experimental API. (generic_nonzero)
Expand description

A value that is known not to equal zero.

This enables some memory layout optimization. For example, Option<NonZero<u32>> is the same size as u32:

#![feature(generic_nonzero)]
use core::mem::size_of;

assert_eq!(size_of::<Option<core::num::NonZero<u32>>>(), size_of::<u32>());

Tuple Fields§

§0: T
🔬This is a nightly-only experimental API. (generic_nonzero)

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 behaviour 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)

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)

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<u8>

1.67.0 · source

pub const BITS: u32 = 8u32

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

This value is equal to u8::BITS.

§Examples

assert_eq!(NonZeroU8::BITS, u8::BITS);
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 = std::num::NonZeroU8::new(u8::MAX).unwrap();

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 = std::num::NonZeroU8::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<u8>::new(0b100_0000)?;
let b = NonZero::<u8>::new(0b100_0011)?;

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

pub const MIN: NonZero<u8> = _

The smallest value that can be represented by this non-zero integer type, 1.

§Examples
assert_eq!(NonZeroU8::MIN.get(), 1u8);
1.70.0 · source

pub const MAX: NonZero<u8> = _

The largest value that can be represented by this non-zero integer type, equal to u8::MAX.

§Examples
assert_eq!(NonZeroU8::MAX.get(), u8::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn checked_add(self, other: u8) -> Option<NonZero<u8>>

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

§Examples
let one = NonZeroU8::new(1)?;
let two = NonZeroU8::new(2)?;
let max = NonZeroU8::new(u8::MAX)?;

assert_eq!(Some(two), one.checked_add(1));
assert_eq!(None, max.checked_add(1));
1.64.0 (const: 1.64.0) · source

pub const fn saturating_add(self, other: u8) -> NonZero<u8>

Adds an unsigned integer to a non-zero value. Return NonZeroU8::MAX on overflow.

§Examples
let one = NonZeroU8::new(1)?;
let two = NonZeroU8::new(2)?;
let max = NonZeroU8::new(u8::MAX)?;

assert_eq!(two, one.saturating_add(1));
assert_eq!(max, max.saturating_add(1));
source

pub const unsafe fn unchecked_add(self, other: u8) -> NonZero<u8>

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

Adds an unsigned integer to a non-zero value, 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 > u8::MAX.

§Examples
#![feature(nonzero_ops)]

let one = NonZeroU8::new(1)?;
let two = NonZeroU8::new(2)?;

assert_eq!(two, unsafe { one.unchecked_add(1) });
1.64.0 (const: 1.64.0) · source

pub const fn checked_next_power_of_two(self) -> Option<NonZero<u8>>

Returns the smallest power of two greater than or equal to n. Checks for overflow and returns None if the next power of two is greater than the type’s maximum value. As a consequence, the result cannot wrap to zero.

§Examples
let two = NonZeroU8::new(2)?;
let three = NonZeroU8::new(3)?;
let four = NonZeroU8::new(4)?;
let max = NonZeroU8::new(u8::MAX)?;

assert_eq!(Some(two), two.checked_next_power_of_two() );
assert_eq!(Some(four), three.checked_next_power_of_two() );
assert_eq!(None, max.checked_next_power_of_two() );
1.67.0 (const: 1.67.0) · source

pub const fn ilog2(self) -> u32

Returns the base 2 logarithm of the number, rounded down.

This is the same operation as u8::ilog2, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU8::new(7).unwrap().ilog2(), 2);
assert_eq!(NonZeroU8::new(8).unwrap().ilog2(), 3);
assert_eq!(NonZeroU8::new(9).unwrap().ilog2(), 3);
1.67.0 (const: 1.67.0) · source

pub const fn ilog10(self) -> u32

Returns the base 10 logarithm of the number, rounded down.

This is the same operation as u8::ilog10, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU8::new(99).unwrap().ilog10(), 1);
assert_eq!(NonZeroU8::new(100).unwrap().ilog10(), 2);
assert_eq!(NonZeroU8::new(101).unwrap().ilog10(), 2);
const: unstable · source

pub fn midpoint(self, rhs: NonZero<u8>) -> NonZero<u8>

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

Calculates the middle point of self and rhs.

midpoint(a, b) is (a + b) >> 1 as if it were performed in a sufficiently-large signed integral type. This implies that the result is always rounded towards negative infinity and that no overflow will ever occur.

§Examples
#![feature(num_midpoint)]

let one = NonZeroU8::new(1)?;
let two = NonZeroU8::new(2)?;
let four = NonZeroU8::new(4)?;

assert_eq!(one.midpoint(four), two);
assert_eq!(four.midpoint(one), two);
1.59.0 (const: 1.59.0) · source

pub const fn is_power_of_two(self) -> bool

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:

let eight = std::num::NonZeroU8::new(8).unwrap();
assert!(eight.is_power_of_two());
let ten = std::num::NonZeroU8::new(10).unwrap();
assert!(!ten.is_power_of_two());
1.64.0 (const: 1.64.0) · source

pub const fn checked_mul(self, other: NonZero<u8>) -> Option<NonZero<u8>>

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 = NonZeroU8::new(2)?;
let four = NonZeroU8::new(4)?;
let max = NonZeroU8::new(u8::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<u8>) -> NonZero<u8>

Multiplies two non-zero integers together. Return NonZeroU8::MAX on overflow.

§Examples
let two = NonZeroU8::new(2)?;
let four = NonZeroU8::new(4)?;
let max = NonZeroU8::new(u8::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<u8>) -> NonZero<u8>

🔬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 > u8::MAX.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroU8::new(2)?;
let four = NonZeroU8::new(4)?;

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<u8>>

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 = NonZeroU8::new(3)?;
let twenty_seven = NonZeroU8::new(27)?;
let half_max = NonZeroU8::new(u8::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<u8>

Raise non-zero value to an integer power. Return NonZeroU8::MAX on overflow.

§Examples
let three = NonZeroU8::new(3)?;
let twenty_seven = NonZeroU8::new(27)?;
let max = NonZeroU8::new(u8::MAX)?;

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

impl NonZero<u16>

1.67.0 · source

pub const BITS: u32 = 16u32

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

This value is equal to u16::BITS.

§Examples

assert_eq!(NonZeroU16::BITS, u16::BITS);
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 = std::num::NonZeroU16::new(u16::MAX).unwrap();

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 = std::num::NonZeroU16::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<u16>::new(0b100_0000)?;
let b = NonZero::<u16>::new(0b100_0011)?;

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

pub const MIN: NonZero<u16> = _

The smallest value that can be represented by this non-zero integer type, 1.

§Examples
assert_eq!(NonZeroU16::MIN.get(), 1u16);
1.70.0 · source

pub const MAX: NonZero<u16> = _

The largest value that can be represented by this non-zero integer type, equal to u16::MAX.

§Examples
assert_eq!(NonZeroU16::MAX.get(), u16::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn checked_add(self, other: u16) -> Option<NonZero<u16>>

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

§Examples
let one = NonZeroU16::new(1)?;
let two = NonZeroU16::new(2)?;
let max = NonZeroU16::new(u16::MAX)?;

assert_eq!(Some(two), one.checked_add(1));
assert_eq!(None, max.checked_add(1));
1.64.0 (const: 1.64.0) · source

pub const fn saturating_add(self, other: u16) -> NonZero<u16>

Adds an unsigned integer to a non-zero value. Return NonZeroU16::MAX on overflow.

§Examples
let one = NonZeroU16::new(1)?;
let two = NonZeroU16::new(2)?;
let max = NonZeroU16::new(u16::MAX)?;

assert_eq!(two, one.saturating_add(1));
assert_eq!(max, max.saturating_add(1));
source

pub const unsafe fn unchecked_add(self, other: u16) -> NonZero<u16>

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

Adds an unsigned integer to a non-zero value, 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 > u16::MAX.

§Examples
#![feature(nonzero_ops)]

let one = NonZeroU16::new(1)?;
let two = NonZeroU16::new(2)?;

assert_eq!(two, unsafe { one.unchecked_add(1) });
1.64.0 (const: 1.64.0) · source

pub const fn checked_next_power_of_two(self) -> Option<NonZero<u16>>

Returns the smallest power of two greater than or equal to n. Checks for overflow and returns None if the next power of two is greater than the type’s maximum value. As a consequence, the result cannot wrap to zero.

§Examples
let two = NonZeroU16::new(2)?;
let three = NonZeroU16::new(3)?;
let four = NonZeroU16::new(4)?;
let max = NonZeroU16::new(u16::MAX)?;

assert_eq!(Some(two), two.checked_next_power_of_two() );
assert_eq!(Some(four), three.checked_next_power_of_two() );
assert_eq!(None, max.checked_next_power_of_two() );
1.67.0 (const: 1.67.0) · source

pub const fn ilog2(self) -> u32

Returns the base 2 logarithm of the number, rounded down.

This is the same operation as u16::ilog2, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU16::new(7).unwrap().ilog2(), 2);
assert_eq!(NonZeroU16::new(8).unwrap().ilog2(), 3);
assert_eq!(NonZeroU16::new(9).unwrap().ilog2(), 3);
1.67.0 (const: 1.67.0) · source

pub const fn ilog10(self) -> u32

Returns the base 10 logarithm of the number, rounded down.

This is the same operation as u16::ilog10, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU16::new(99).unwrap().ilog10(), 1);
assert_eq!(NonZeroU16::new(100).unwrap().ilog10(), 2);
assert_eq!(NonZeroU16::new(101).unwrap().ilog10(), 2);
const: unstable · source

pub fn midpoint(self, rhs: NonZero<u16>) -> NonZero<u16>

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

Calculates the middle point of self and rhs.

midpoint(a, b) is (a + b) >> 1 as if it were performed in a sufficiently-large signed integral type. This implies that the result is always rounded towards negative infinity and that no overflow will ever occur.

§Examples
#![feature(num_midpoint)]

let one = NonZeroU16::new(1)?;
let two = NonZeroU16::new(2)?;
let four = NonZeroU16::new(4)?;

assert_eq!(one.midpoint(four), two);
assert_eq!(four.midpoint(one), two);
1.59.0 (const: 1.59.0) · source

pub const fn is_power_of_two(self) -> bool

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:

let eight = std::num::NonZeroU16::new(8).unwrap();
assert!(eight.is_power_of_two());
let ten = std::num::NonZeroU16::new(10).unwrap();
assert!(!ten.is_power_of_two());
1.64.0 (const: 1.64.0) · source

pub const fn checked_mul(self, other: NonZero<u16>) -> Option<NonZero<u16>>

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 = NonZeroU16::new(2)?;
let four = NonZeroU16::new(4)?;
let max = NonZeroU16::new(u16::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<u16>) -> NonZero<u16>

Multiplies two non-zero integers together. Return NonZeroU16::MAX on overflow.

§Examples
let two = NonZeroU16::new(2)?;
let four = NonZeroU16::new(4)?;
let max = NonZeroU16::new(u16::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<u16>) -> NonZero<u16>

🔬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 > u16::MAX.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroU16::new(2)?;
let four = NonZeroU16::new(4)?;

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<u16>>

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 = NonZeroU16::new(3)?;
let twenty_seven = NonZeroU16::new(27)?;
let half_max = NonZeroU16::new(u16::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<u16>

Raise non-zero value to an integer power. Return NonZeroU16::MAX on overflow.

§Examples
let three = NonZeroU16::new(3)?;
let twenty_seven = NonZeroU16::new(27)?;
let max = NonZeroU16::new(u16::MAX)?;

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

impl NonZero<u32>

1.67.0 · source

pub const BITS: u32 = 32u32

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

This value is equal to u32::BITS.

§Examples

assert_eq!(NonZeroU32::BITS, u32::BITS);
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 = std::num::NonZeroU32::new(u32::MAX).unwrap();

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 = std::num::NonZeroU32::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<u32>::new(0b100_0000)?;
let b = NonZero::<u32>::new(0b100_0011)?;

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

pub const MIN: NonZero<u32> = _

The smallest value that can be represented by this non-zero integer type, 1.

§Examples
assert_eq!(NonZeroU32::MIN.get(), 1u32);
1.70.0 · source

pub const MAX: NonZero<u32> = _

The largest value that can be represented by this non-zero integer type, equal to u32::MAX.

§Examples
assert_eq!(NonZeroU32::MAX.get(), u32::MAX);
1.64.0 (const: 1.64.0) · source

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

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

§Examples
let one = NonZeroU32::new(1)?;
let two = NonZeroU32::new(2)?;
let max = NonZeroU32::new(u32::MAX)?;

assert_eq!(Some(two), one.checked_add(1));
assert_eq!(None, max.checked_add(1));
1.64.0 (const: 1.64.0) · source

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

Adds an unsigned integer to a non-zero value. Return NonZeroU32::MAX on overflow.

§Examples
let one = NonZeroU32::new(1)?;
let two = NonZeroU32::new(2)?;
let max = NonZeroU32::new(u32::MAX)?;

assert_eq!(two, one.saturating_add(1));
assert_eq!(max, max.saturating_add(1));
source

pub const unsafe fn unchecked_add(self, other: u32) -> NonZero<u32>

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

Adds an unsigned integer to a non-zero value, 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 > u32::MAX.

§Examples
#![feature(nonzero_ops)]

let one = NonZeroU32::new(1)?;
let two = NonZeroU32::new(2)?;

assert_eq!(two, unsafe { one.unchecked_add(1) });
1.64.0 (const: 1.64.0) · source

pub const fn checked_next_power_of_two(self) -> Option<NonZero<u32>>

Returns the smallest power of two greater than or equal to n. Checks for overflow and returns None if the next power of two is greater than the type’s maximum value. As a consequence, the result cannot wrap to zero.

§Examples
let two = NonZeroU32::new(2)?;
let three = NonZeroU32::new(3)?;
let four = NonZeroU32::new(4)?;
let max = NonZeroU32::new(u32::MAX)?;

assert_eq!(Some(two), two.checked_next_power_of_two() );
assert_eq!(Some(four), three.checked_next_power_of_two() );
assert_eq!(None, max.checked_next_power_of_two() );
1.67.0 (const: 1.67.0) · source

pub const fn ilog2(self) -> u32

Returns the base 2 logarithm of the number, rounded down.

This is the same operation as u32::ilog2, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU32::new(7).unwrap().ilog2(), 2);
assert_eq!(NonZeroU32::new(8).unwrap().ilog2(), 3);
assert_eq!(NonZeroU32::new(9).unwrap().ilog2(), 3);
1.67.0 (const: 1.67.0) · source

pub const fn ilog10(self) -> u32

Returns the base 10 logarithm of the number, rounded down.

This is the same operation as u32::ilog10, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU32::new(99).unwrap().ilog10(), 1);
assert_eq!(NonZeroU32::new(100).unwrap().ilog10(), 2);
assert_eq!(NonZeroU32::new(101).unwrap().ilog10(), 2);
const: unstable · source

pub fn midpoint(self, rhs: NonZero<u32>) -> NonZero<u32>

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

Calculates the middle point of self and rhs.

midpoint(a, b) is (a + b) >> 1 as if it were performed in a sufficiently-large signed integral type. This implies that the result is always rounded towards negative infinity and that no overflow will ever occur.

§Examples
#![feature(num_midpoint)]

let one = NonZeroU32::new(1)?;
let two = NonZeroU32::new(2)?;
let four = NonZeroU32::new(4)?;

assert_eq!(one.midpoint(four), two);
assert_eq!(four.midpoint(one), two);
1.59.0 (const: 1.59.0) · source

pub const fn is_power_of_two(self) -> bool

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:

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());
1.64.0 (const: 1.64.0) · source

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

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 = NonZeroU32::new(2)?;
let four = NonZeroU32::new(4)?;
let max = NonZeroU32::new(u32::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<u32>) -> NonZero<u32>

Multiplies two non-zero integers together. Return NonZeroU32::MAX on overflow.

§Examples
let two = NonZeroU32::new(2)?;
let four = NonZeroU32::new(4)?;
let max = NonZeroU32::new(u32::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<u32>) -> NonZero<u32>

🔬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 > u32::MAX.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroU32::new(2)?;
let four = NonZeroU32::new(4)?;

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<u32>>

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 = NonZeroU32::new(3)?;
let twenty_seven = NonZeroU32::new(27)?;
let half_max = NonZeroU32::new(u32::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<u32>

Raise non-zero value to an integer power. Return NonZeroU32::MAX on overflow.

§Examples
let three = NonZeroU32::new(3)?;
let twenty_seven = NonZeroU32::new(27)?;
let max = NonZeroU32::new(u32::MAX)?;

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

impl NonZero<u64>

1.67.0 · source

pub const BITS: u32 = 64u32

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

This value is equal to u64::BITS.

§Examples

assert_eq!(NonZeroU64::BITS, u64::BITS);
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 = std::num::NonZeroU64::new(u64::MAX).unwrap();

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 = std::num::NonZeroU64::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<u64>::new(0b100_0000)?;
let b = NonZero::<u64>::new(0b100_0011)?;

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

pub const MIN: NonZero<u64> = _

The smallest value that can be represented by this non-zero integer type, 1.

§Examples
assert_eq!(NonZeroU64::MIN.get(), 1u64);
1.70.0 · source

pub const MAX: NonZero<u64> = _

The largest value that can be represented by this non-zero integer type, equal to u64::MAX.

§Examples
assert_eq!(NonZeroU64::MAX.get(), u64::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn checked_add(self, other: u64) -> Option<NonZero<u64>>

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

§Examples
let one = NonZeroU64::new(1)?;
let two = NonZeroU64::new(2)?;
let max = NonZeroU64::new(u64::MAX)?;

assert_eq!(Some(two), one.checked_add(1));
assert_eq!(None, max.checked_add(1));
1.64.0 (const: 1.64.0) · source

pub const fn saturating_add(self, other: u64) -> NonZero<u64>

Adds an unsigned integer to a non-zero value. Return NonZeroU64::MAX on overflow.

§Examples
let one = NonZeroU64::new(1)?;
let two = NonZeroU64::new(2)?;
let max = NonZeroU64::new(u64::MAX)?;

assert_eq!(two, one.saturating_add(1));
assert_eq!(max, max.saturating_add(1));
source

pub const unsafe fn unchecked_add(self, other: u64) -> NonZero<u64>

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

Adds an unsigned integer to a non-zero value, 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 > u64::MAX.

§Examples
#![feature(nonzero_ops)]

let one = NonZeroU64::new(1)?;
let two = NonZeroU64::new(2)?;

assert_eq!(two, unsafe { one.unchecked_add(1) });
1.64.0 (const: 1.64.0) · source

pub const fn checked_next_power_of_two(self) -> Option<NonZero<u64>>

Returns the smallest power of two greater than or equal to n. Checks for overflow and returns None if the next power of two is greater than the type’s maximum value. As a consequence, the result cannot wrap to zero.

§Examples
let two = NonZeroU64::new(2)?;
let three = NonZeroU64::new(3)?;
let four = NonZeroU64::new(4)?;
let max = NonZeroU64::new(u64::MAX)?;

assert_eq!(Some(two), two.checked_next_power_of_two() );
assert_eq!(Some(four), three.checked_next_power_of_two() );
assert_eq!(None, max.checked_next_power_of_two() );
1.67.0 (const: 1.67.0) · source

pub const fn ilog2(self) -> u32

Returns the base 2 logarithm of the number, rounded down.

This is the same operation as u64::ilog2, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU64::new(7).unwrap().ilog2(), 2);
assert_eq!(NonZeroU64::new(8).unwrap().ilog2(), 3);
assert_eq!(NonZeroU64::new(9).unwrap().ilog2(), 3);
1.67.0 (const: 1.67.0) · source

pub const fn ilog10(self) -> u32

Returns the base 10 logarithm of the number, rounded down.

This is the same operation as u64::ilog10, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU64::new(99).unwrap().ilog10(), 1);
assert_eq!(NonZeroU64::new(100).unwrap().ilog10(), 2);
assert_eq!(NonZeroU64::new(101).unwrap().ilog10(), 2);
const: unstable · source

pub fn midpoint(self, rhs: NonZero<u64>) -> NonZero<u64>

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

Calculates the middle point of self and rhs.

midpoint(a, b) is (a + b) >> 1 as if it were performed in a sufficiently-large signed integral type. This implies that the result is always rounded towards negative infinity and that no overflow will ever occur.

§Examples
#![feature(num_midpoint)]

let one = NonZeroU64::new(1)?;
let two = NonZeroU64::new(2)?;
let four = NonZeroU64::new(4)?;

assert_eq!(one.midpoint(four), two);
assert_eq!(four.midpoint(one), two);
1.59.0 (const: 1.59.0) · source

pub const fn is_power_of_two(self) -> bool

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:

let eight = std::num::NonZeroU64::new(8).unwrap();
assert!(eight.is_power_of_two());
let ten = std::num::NonZeroU64::new(10).unwrap();
assert!(!ten.is_power_of_two());
1.64.0 (const: 1.64.0) · source

pub const fn checked_mul(self, other: NonZero<u64>) -> Option<NonZero<u64>>

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 = NonZeroU64::new(2)?;
let four = NonZeroU64::new(4)?;
let max = NonZeroU64::new(u64::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<u64>) -> NonZero<u64>

Multiplies two non-zero integers together. Return NonZeroU64::MAX on overflow.

§Examples
let two = NonZeroU64::new(2)?;
let four = NonZeroU64::new(4)?;
let max = NonZeroU64::new(u64::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<u64>) -> NonZero<u64>

🔬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 > u64::MAX.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroU64::new(2)?;
let four = NonZeroU64::new(4)?;

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<u64>>

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 = NonZeroU64::new(3)?;
let twenty_seven = NonZeroU64::new(27)?;
let half_max = NonZeroU64::new(u64::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<u64>

Raise non-zero value to an integer power. Return NonZeroU64::MAX on overflow.

§Examples
let three = NonZeroU64::new(3)?;
let twenty_seven = NonZeroU64::new(27)?;
let max = NonZeroU64::new(u64::MAX)?;

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

impl NonZero<u128>

1.67.0 · source

pub const BITS: u32 = 128u32

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

This value is equal to u128::BITS.

§Examples

assert_eq!(NonZeroU128::BITS, u128::BITS);
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 = std::num::NonZeroU128::new(u128::MAX).unwrap();

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 = std::num::NonZeroU128::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<u128>::new(0b100_0000)?;
let b = NonZero::<u128>::new(0b100_0011)?;

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

pub const MIN: NonZero<u128> = _

The smallest value that can be represented by this non-zero integer type, 1.

§Examples
assert_eq!(NonZeroU128::MIN.get(), 1u128);
1.70.0 · source

pub const MAX: NonZero<u128> = _

The largest value that can be represented by this non-zero integer type, equal to u128::MAX.

§Examples
assert_eq!(NonZeroU128::MAX.get(), u128::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn checked_add(self, other: u128) -> Option<NonZero<u128>>

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

§Examples
let one = NonZeroU128::new(1)?;
let two = NonZeroU128::new(2)?;
let max = NonZeroU128::new(u128::MAX)?;

assert_eq!(Some(two), one.checked_add(1));
assert_eq!(None, max.checked_add(1));
1.64.0 (const: 1.64.0) · source

pub const fn saturating_add(self, other: u128) -> NonZero<u128>

Adds an unsigned integer to a non-zero value. Return NonZeroU128::MAX on overflow.

§Examples
let one = NonZeroU128::new(1)?;
let two = NonZeroU128::new(2)?;
let max = NonZeroU128::new(u128::MAX)?;

assert_eq!(two, one.saturating_add(1));
assert_eq!(max, max.saturating_add(1));
source

pub const unsafe fn unchecked_add(self, other: u128) -> NonZero<u128>

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

Adds an unsigned integer to a non-zero value, 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 > u128::MAX.

§Examples
#![feature(nonzero_ops)]

let one = NonZeroU128::new(1)?;
let two = NonZeroU128::new(2)?;

assert_eq!(two, unsafe { one.unchecked_add(1) });
1.64.0 (const: 1.64.0) · source

pub const fn checked_next_power_of_two(self) -> Option<NonZero<u128>>

Returns the smallest power of two greater than or equal to n. Checks for overflow and returns None if the next power of two is greater than the type’s maximum value. As a consequence, the result cannot wrap to zero.

§Examples
let two = NonZeroU128::new(2)?;
let three = NonZeroU128::new(3)?;
let four = NonZeroU128::new(4)?;
let max = NonZeroU128::new(u128::MAX)?;

assert_eq!(Some(two), two.checked_next_power_of_two() );
assert_eq!(Some(four), three.checked_next_power_of_two() );
assert_eq!(None, max.checked_next_power_of_two() );
1.67.0 (const: 1.67.0) · source

pub const fn ilog2(self) -> u32

Returns the base 2 logarithm of the number, rounded down.

This is the same operation as u128::ilog2, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU128::new(7).unwrap().ilog2(), 2);
assert_eq!(NonZeroU128::new(8).unwrap().ilog2(), 3);
assert_eq!(NonZeroU128::new(9).unwrap().ilog2(), 3);
1.67.0 (const: 1.67.0) · source

pub const fn ilog10(self) -> u32

Returns the base 10 logarithm of the number, rounded down.

This is the same operation as u128::ilog10, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroU128::new(99).unwrap().ilog10(), 1);
assert_eq!(NonZeroU128::new(100).unwrap().ilog10(), 2);
assert_eq!(NonZeroU128::new(101).unwrap().ilog10(), 2);
const: unstable · source

pub fn midpoint(self, rhs: NonZero<u128>) -> NonZero<u128>

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

Calculates the middle point of self and rhs.

midpoint(a, b) is (a + b) >> 1 as if it were performed in a sufficiently-large signed integral type. This implies that the result is always rounded towards negative infinity and that no overflow will ever occur.

§Examples
#![feature(num_midpoint)]

let one = NonZeroU128::new(1)?;
let two = NonZeroU128::new(2)?;
let four = NonZeroU128::new(4)?;

assert_eq!(one.midpoint(four), two);
assert_eq!(four.midpoint(one), two);
1.59.0 (const: 1.59.0) · source

pub const fn is_power_of_two(self) -> bool

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:

let eight = std::num::NonZeroU128::new(8).unwrap();
assert!(eight.is_power_of_two());
let ten = std::num::NonZeroU128::new(10).unwrap();
assert!(!ten.is_power_of_two());
1.64.0 (const: 1.64.0) · source

pub const fn checked_mul(self, other: NonZero<u128>) -> Option<NonZero<u128>>

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 = NonZeroU128::new(2)?;
let four = NonZeroU128::new(4)?;
let max = NonZeroU128::new(u128::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<u128>) -> NonZero<u128>

Multiplies two non-zero integers together. Return NonZeroU128::MAX on overflow.

§Examples
let two = NonZeroU128::new(2)?;
let four = NonZeroU128::new(4)?;
let max = NonZeroU128::new(u128::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<u128>) -> NonZero<u128>

🔬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 > u128::MAX.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroU128::new(2)?;
let four = NonZeroU128::new(4)?;

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<u128>>

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 = NonZeroU128::new(3)?;
let twenty_seven = NonZeroU128::new(27)?;
let half_max = NonZeroU128::new(u128::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<u128>

Raise non-zero value to an integer power. Return NonZeroU128::MAX on overflow.

§Examples
let three = NonZeroU128::new(3)?;
let twenty_seven = NonZeroU128::new(27)?;
let max = NonZeroU128::new(u128::MAX)?;

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

impl NonZero<usize>

1.67.0 · source

pub const BITS: u32 = 64u32

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

This value is equal to usize::BITS.

§Examples

assert_eq!(NonZeroUsize::BITS, usize::BITS);
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 = std::num::NonZeroUsize::new(usize::MAX).unwrap();

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 = std::num::NonZeroUsize::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<usize>::new(0b100_0000)?;
let b = NonZero::<usize>::new(0b100_0011)?;

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

pub const MIN: NonZero<usize> = _

The smallest value that can be represented by this non-zero integer type, 1.

§Examples
assert_eq!(NonZeroUsize::MIN.get(), 1usize);
1.70.0 · source

pub const MAX: NonZero<usize> = _

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

§Examples
assert_eq!(NonZeroUsize::MAX.get(), usize::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn checked_add(self, other: usize) -> Option<NonZero<usize>>

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

§Examples
let one = NonZeroUsize::new(1)?;
let two = NonZeroUsize::new(2)?;
let max = NonZeroUsize::new(usize::MAX)?;

assert_eq!(Some(two), one.checked_add(1));
assert_eq!(None, max.checked_add(1));
1.64.0 (const: 1.64.0) · source

pub const fn saturating_add(self, other: usize) -> NonZero<usize>

Adds an unsigned integer to a non-zero value. Return NonZeroUsize::MAX on overflow.

§Examples
let one = NonZeroUsize::new(1)?;
let two = NonZeroUsize::new(2)?;
let max = NonZeroUsize::new(usize::MAX)?;

assert_eq!(two, one.saturating_add(1));
assert_eq!(max, max.saturating_add(1));
source

pub const unsafe fn unchecked_add(self, other: usize) -> NonZero<usize>

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

Adds an unsigned integer to a non-zero value, 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 > usize::MAX.

§Examples
#![feature(nonzero_ops)]

let one = NonZeroUsize::new(1)?;
let two = NonZeroUsize::new(2)?;

assert_eq!(two, unsafe { one.unchecked_add(1) });
1.64.0 (const: 1.64.0) · source

pub const fn checked_next_power_of_two(self) -> Option<NonZero<usize>>

Returns the smallest power of two greater than or equal to n. Checks for overflow and returns None if the next power of two is greater than the type’s maximum value. As a consequence, the result cannot wrap to zero.

§Examples
let two = NonZeroUsize::new(2)?;
let three = NonZeroUsize::new(3)?;
let four = NonZeroUsize::new(4)?;
let max = NonZeroUsize::new(usize::MAX)?;

assert_eq!(Some(two), two.checked_next_power_of_two() );
assert_eq!(Some(four), three.checked_next_power_of_two() );
assert_eq!(None, max.checked_next_power_of_two() );
1.67.0 (const: 1.67.0) · source

pub const fn ilog2(self) -> u32

Returns the base 2 logarithm of the number, rounded down.

This is the same operation as usize::ilog2, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroUsize::new(7).unwrap().ilog2(), 2);
assert_eq!(NonZeroUsize::new(8).unwrap().ilog2(), 3);
assert_eq!(NonZeroUsize::new(9).unwrap().ilog2(), 3);
1.67.0 (const: 1.67.0) · source

pub const fn ilog10(self) -> u32

Returns the base 10 logarithm of the number, rounded down.

This is the same operation as usize::ilog10, except that it has no failure cases to worry about since this value can never be zero.

§Examples
assert_eq!(NonZeroUsize::new(99).unwrap().ilog10(), 1);
assert_eq!(NonZeroUsize::new(100).unwrap().ilog10(), 2);
assert_eq!(NonZeroUsize::new(101).unwrap().ilog10(), 2);
const: unstable · source

pub fn midpoint(self, rhs: NonZero<usize>) -> NonZero<usize>

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

Calculates the middle point of self and rhs.

midpoint(a, b) is (a + b) >> 1 as if it were performed in a sufficiently-large signed integral type. This implies that the result is always rounded towards negative infinity and that no overflow will ever occur.

§Examples
#![feature(num_midpoint)]

let one = NonZeroUsize::new(1)?;
let two = NonZeroUsize::new(2)?;
let four = NonZeroUsize::new(4)?;

assert_eq!(one.midpoint(four), two);
assert_eq!(four.midpoint(one), two);
1.59.0 (const: 1.59.0) · source

pub const fn is_power_of_two(self) -> bool

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:

let eight = std::num::NonZeroUsize::new(8).unwrap();
assert!(eight.is_power_of_two());
let ten = std::num::NonZeroUsize::new(10).unwrap();
assert!(!ten.is_power_of_two());
1.64.0 (const: 1.64.0) · source

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

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 = NonZeroUsize::new(2)?;
let four = NonZeroUsize::new(4)?;
let max = NonZeroUsize::new(usize::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<usize>) -> NonZero<usize>

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

§Examples
let two = NonZeroUsize::new(2)?;
let four = NonZeroUsize::new(4)?;
let max = NonZeroUsize::new(usize::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<usize>) -> NonZero<usize>

🔬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 > usize::MAX.

§Examples
#![feature(nonzero_ops)]

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

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<usize>>

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 = NonZeroUsize::new(3)?;
let twenty_seven = NonZeroUsize::new(27)?;
let half_max = NonZeroUsize::new(usize::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<usize>

Raise non-zero value to an integer power. Return NonZeroUsize::MAX on overflow.

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

assert_eq!(twenty_seven, three.saturating_pow(3));
assert_eq!(max, max.saturating_pow(3));
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!(NonZeroI8::BITS, i8::BITS);
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 = std::num::NonZeroI8::new(-1i8).unwrap();

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 = std::num::NonZeroI8::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, 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)?);
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!(NonZeroI8::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!(NonZeroI8::MAX.get(), i8::MAX);
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 behaviour.

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

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

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

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 == 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);
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 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));
1.71.0 (const: 1.71.0) · source

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

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);
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 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);
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 = 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));
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 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));
source

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

🔬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) });
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 = 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));
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 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));
source§

impl NonZero<i16>

1.67.0 · source

pub const BITS: u32 = 16u32

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

This value is equal to i16::BITS.

§Examples

assert_eq!(NonZeroI16::BITS, i16::BITS);
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 = std::num::NonZeroI16::new(-1i16).unwrap();

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 = std::num::NonZeroI16::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<i16>::new(0b100_0000)?;
let b = NonZero::<i16>::new(0b100_0011)?;

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

pub const MIN: NonZero<i16> = _

The smallest value that can be represented by this non-zero integer type, equal to i16::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!(NonZeroI16::MIN.get(), i16::MIN);
1.70.0 · source

pub const MAX: NonZero<i16> = _

The largest value that can be represented by this non-zero integer type, equal to i16::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!(NonZeroI16::MAX.get(), i16::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn abs(self) -> NonZero<i16>

Computes the absolute value of self. See i16::abs for documentation on overflow behaviour.

§Example
let pos = NonZeroI16::new(1)?;
let neg = NonZeroI16::new(-1)?;

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<i16>>

Checked absolute value. Checks for overflow and returns None if self == NonZeroI16::MIN. The result cannot be zero.

§Example
let pos = NonZeroI16::new(1)?;
let neg = NonZeroI16::new(-1)?;
let min = NonZeroI16::new(i16::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<i16>, bool)

Computes the absolute value of self, with overflow information, see i16::overflowing_abs.

§Example
let pos = NonZeroI16::new(1)?;
let neg = NonZeroI16::new(-1)?;
let min = NonZeroI16::new(i16::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<i16>

Saturating absolute value, see i16::saturating_abs.

§Example
let pos = NonZeroI16::new(1)?;
let neg = NonZeroI16::new(-1)?;
let min = NonZeroI16::new(i16::MIN)?;
let min_plus = NonZeroI16::new(i16::MIN + 1)?;
let max = NonZeroI16::new(i16::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<i16>

Wrapping absolute value, see i16::wrapping_abs.

§Example
let pos = NonZeroI16::new(1)?;
let neg = NonZeroI16::new(-1)?;
let min = NonZeroI16::new(i16::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<u16>

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

§Example

let u_pos = NonZeroU16::new(1)?;
let i_pos = NonZeroI16::new(1)?;
let i_neg = NonZeroI16::new(-1)?;
let i_min = NonZeroI16::new(i16::MIN)?;
let u_max = NonZeroU16::new(u16::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 = NonZeroI16::new(5)?;
let neg_five = NonZeroI16::new(-5)?;

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 = NonZeroI16::new(5)?;
let neg_five = NonZeroI16::new(-5)?;

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<i16>>

Checked negation. Computes -self, returning None if self == NonZeroI16::MIN.

§Example
let pos_five = NonZeroI16::new(5)?;
let neg_five = NonZeroI16::new(-5)?;
let min = NonZeroI16::new(i16::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<i16>, bool)

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

See i16::overflowing_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroI16::new(5)?;
let neg_five = NonZeroI16::new(-5)?;
let min = NonZeroI16::new(i16::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<i16>

Saturating negation. Computes -self, returning NonZeroI16::MAX if self == NonZeroI16::MIN instead of overflowing.

§Example
let pos_five = NonZeroI16::new(5)?;
let neg_five = NonZeroI16::new(-5)?;
let min = NonZeroI16::new(i16::MIN)?;
let min_plus_one = NonZeroI16::new(i16::MIN + 1)?;
let max = NonZeroI16::new(i16::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<i16>

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

See i16::wrapping_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroI16::new(5)?;
let neg_five = NonZeroI16::new(-5)?;
let min = NonZeroI16::new(i16::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<i16>) -> Option<NonZero<i16>>

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 = NonZeroI16::new(2)?;
let four = NonZeroI16::new(4)?;
let max = NonZeroI16::new(i16::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<i16>) -> NonZero<i16>

Multiplies two non-zero integers together. Return NonZeroI16::MAX on overflow.

§Examples
let two = NonZeroI16::new(2)?;
let four = NonZeroI16::new(4)?;
let max = NonZeroI16::new(i16::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<i16>) -> NonZero<i16>

🔬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 > i16::MAX, or self * rhs < i16::MIN.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroI16::new(2)?;
let four = NonZeroI16::new(4)?;

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<i16>>

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 = NonZeroI16::new(3)?;
let twenty_seven = NonZeroI16::new(27)?;
let half_max = NonZeroI16::new(i16::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<i16>

Raise non-zero value to an integer power. Return NonZeroI16::MIN or NonZeroI16::MAX on overflow.

§Examples
let three = NonZeroI16::new(3)?;
let twenty_seven = NonZeroI16::new(27)?;
let max = NonZeroI16::new(i16::MAX)?;

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

impl NonZero<i32>

1.67.0 · source

pub const BITS: u32 = 32u32

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

This value is equal to i32::BITS.

§Examples

assert_eq!(NonZeroI32::BITS, i32::BITS);
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 = std::num::NonZeroI32::new(-1i32).unwrap();

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 = std::num::NonZeroI32::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<i32>::new(0b100_0000)?;
let b = NonZero::<i32>::new(0b100_0011)?;

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

pub const MIN: NonZero<i32> = _

The smallest value that can be represented by this non-zero integer type, equal to i32::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!(NonZeroI32::MIN.get(), i32::MIN);
1.70.0 · source

pub const MAX: NonZero<i32> = _

The largest value that can be represented by this non-zero integer type, equal to i32::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!(NonZeroI32::MAX.get(), i32::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn abs(self) -> NonZero<i32>

Computes the absolute value of self. See i32::abs for documentation on overflow behaviour.

§Example
let pos = NonZeroI32::new(1)?;
let neg = NonZeroI32::new(-1)?;

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<i32>>

Checked absolute value. Checks for overflow and returns None if self == NonZeroI32::MIN. The result cannot be zero.

§Example
let pos = NonZeroI32::new(1)?;
let neg = NonZeroI32::new(-1)?;
let min = NonZeroI32::new(i32::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<i32>, bool)

Computes the absolute value of self, with overflow information, see i32::overflowing_abs.

§Example
let pos = NonZeroI32::new(1)?;
let neg = NonZeroI32::new(-1)?;
let min = NonZeroI32::new(i32::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<i32>

Saturating absolute value, see i32::saturating_abs.

§Example
let pos = NonZeroI32::new(1)?;
let neg = NonZeroI32::new(-1)?;
let min = NonZeroI32::new(i32::MIN)?;
let min_plus = NonZeroI32::new(i32::MIN + 1)?;
let max = NonZeroI32::new(i32::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<i32>

Wrapping absolute value, see i32::wrapping_abs.

§Example
let pos = NonZeroI32::new(1)?;
let neg = NonZeroI32::new(-1)?;
let min = NonZeroI32::new(i32::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<u32>

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

§Example

let u_pos = NonZeroU32::new(1)?;
let i_pos = NonZeroI32::new(1)?;
let i_neg = NonZeroI32::new(-1)?;
let i_min = NonZeroI32::new(i32::MIN)?;
let u_max = NonZeroU32::new(u32::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 = NonZeroI32::new(5)?;
let neg_five = NonZeroI32::new(-5)?;

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 = NonZeroI32::new(5)?;
let neg_five = NonZeroI32::new(-5)?;

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<i32>>

Checked negation. Computes -self, returning None if self == NonZeroI32::MIN.

§Example
let pos_five = NonZeroI32::new(5)?;
let neg_five = NonZeroI32::new(-5)?;
let min = NonZeroI32::new(i32::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<i32>, bool)

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

See i32::overflowing_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroI32::new(5)?;
let neg_five = NonZeroI32::new(-5)?;
let min = NonZeroI32::new(i32::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<i32>

Saturating negation. Computes -self, returning NonZeroI32::MAX if self == NonZeroI32::MIN instead of overflowing.

§Example
let pos_five = NonZeroI32::new(5)?;
let neg_five = NonZeroI32::new(-5)?;
let min = NonZeroI32::new(i32::MIN)?;
let min_plus_one = NonZeroI32::new(i32::MIN + 1)?;
let max = NonZeroI32::new(i32::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<i32>

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

See i32::wrapping_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroI32::new(5)?;
let neg_five = NonZeroI32::new(-5)?;
let min = NonZeroI32::new(i32::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<i32>) -> Option<NonZero<i32>>

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 = NonZeroI32::new(2)?;
let four = NonZeroI32::new(4)?;
let max = NonZeroI32::new(i32::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<i32>) -> NonZero<i32>

Multiplies two non-zero integers together. Return NonZeroI32::MAX on overflow.

§Examples
let two = NonZeroI32::new(2)?;
let four = NonZeroI32::new(4)?;
let max = NonZeroI32::new(i32::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<i32>) -> NonZero<i32>

🔬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 > i32::MAX, or self * rhs < i32::MIN.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroI32::new(2)?;
let four = NonZeroI32::new(4)?;

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<i32>>

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 = NonZeroI32::new(3)?;
let twenty_seven = NonZeroI32::new(27)?;
let half_max = NonZeroI32::new(i32::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<i32>

Raise non-zero value to an integer power. Return NonZeroI32::MIN or NonZeroI32::MAX on overflow.

§Examples
let three = NonZeroI32::new(3)?;
let twenty_seven = NonZeroI32::new(27)?;
let max = NonZeroI32::new(i32::MAX)?;

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

impl NonZero<i64>

1.67.0 · source

pub const BITS: u32 = 64u32

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

This value is equal to i64::BITS.

§Examples

assert_eq!(NonZeroI64::BITS, i64::BITS);
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 = std::num::NonZeroI64::new(-1i64).unwrap();

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 = std::num::NonZeroI64::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<i64>::new(0b100_0000)?;
let b = NonZero::<i64>::new(0b100_0011)?;

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

pub const MIN: NonZero<i64> = _

The smallest value that can be represented by this non-zero integer type, equal to i64::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!(NonZeroI64::MIN.get(), i64::MIN);
1.70.0 · source

pub const MAX: NonZero<i64> = _

The largest value that can be represented by this non-zero integer type, equal to i64::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!(NonZeroI64::MAX.get(), i64::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn abs(self) -> NonZero<i64>

Computes the absolute value of self. See i64::abs for documentation on overflow behaviour.

§Example
let pos = NonZeroI64::new(1)?;
let neg = NonZeroI64::new(-1)?;

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<i64>>

Checked absolute value. Checks for overflow and returns None if self == NonZeroI64::MIN. The result cannot be zero.

§Example
let pos = NonZeroI64::new(1)?;
let neg = NonZeroI64::new(-1)?;
let min = NonZeroI64::new(i64::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<i64>, bool)

Computes the absolute value of self, with overflow information, see i64::overflowing_abs.

§Example
let pos = NonZeroI64::new(1)?;
let neg = NonZeroI64::new(-1)?;
let min = NonZeroI64::new(i64::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<i64>

Saturating absolute value, see i64::saturating_abs.

§Example
let pos = NonZeroI64::new(1)?;
let neg = NonZeroI64::new(-1)?;
let min = NonZeroI64::new(i64::MIN)?;
let min_plus = NonZeroI64::new(i64::MIN + 1)?;
let max = NonZeroI64::new(i64::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<i64>

Wrapping absolute value, see i64::wrapping_abs.

§Example
let pos = NonZeroI64::new(1)?;
let neg = NonZeroI64::new(-1)?;
let min = NonZeroI64::new(i64::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<u64>

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

§Example

let u_pos = NonZeroU64::new(1)?;
let i_pos = NonZeroI64::new(1)?;
let i_neg = NonZeroI64::new(-1)?;
let i_min = NonZeroI64::new(i64::MIN)?;
let u_max = NonZeroU64::new(u64::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 = NonZeroI64::new(5)?;
let neg_five = NonZeroI64::new(-5)?;

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 = NonZeroI64::new(5)?;
let neg_five = NonZeroI64::new(-5)?;

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<i64>>

Checked negation. Computes -self, returning None if self == NonZeroI64::MIN.

§Example
let pos_five = NonZeroI64::new(5)?;
let neg_five = NonZeroI64::new(-5)?;
let min = NonZeroI64::new(i64::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<i64>, bool)

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

See i64::overflowing_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroI64::new(5)?;
let neg_five = NonZeroI64::new(-5)?;
let min = NonZeroI64::new(i64::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<i64>

Saturating negation. Computes -self, returning NonZeroI64::MAX if self == NonZeroI64::MIN instead of overflowing.

§Example
let pos_five = NonZeroI64::new(5)?;
let neg_five = NonZeroI64::new(-5)?;
let min = NonZeroI64::new(i64::MIN)?;
let min_plus_one = NonZeroI64::new(i64::MIN + 1)?;
let max = NonZeroI64::new(i64::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<i64>

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

See i64::wrapping_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroI64::new(5)?;
let neg_five = NonZeroI64::new(-5)?;
let min = NonZeroI64::new(i64::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<i64>) -> Option<NonZero<i64>>

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 = NonZeroI64::new(2)?;
let four = NonZeroI64::new(4)?;
let max = NonZeroI64::new(i64::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<i64>) -> NonZero<i64>

Multiplies two non-zero integers together. Return NonZeroI64::MAX on overflow.

§Examples
let two = NonZeroI64::new(2)?;
let four = NonZeroI64::new(4)?;
let max = NonZeroI64::new(i64::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<i64>) -> NonZero<i64>

🔬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 > i64::MAX, or self * rhs < i64::MIN.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroI64::new(2)?;
let four = NonZeroI64::new(4)?;

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<i64>>

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 = NonZeroI64::new(3)?;
let twenty_seven = NonZeroI64::new(27)?;
let half_max = NonZeroI64::new(i64::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<i64>

Raise non-zero value to an integer power. Return NonZeroI64::MIN or NonZeroI64::MAX on overflow.

§Examples
let three = NonZeroI64::new(3)?;
let twenty_seven = NonZeroI64::new(27)?;
let max = NonZeroI64::new(i64::MAX)?;

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

impl NonZero<i128>

1.67.0 · source

pub const BITS: u32 = 128u32

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

This value is equal to i128::BITS.

§Examples

assert_eq!(NonZeroI128::BITS, i128::BITS);
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 = std::num::NonZeroI128::new(-1i128).unwrap();

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 = std::num::NonZeroI128::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<i128>::new(0b100_0000)?;
let b = NonZero::<i128>::new(0b100_0011)?;

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

pub const MIN: NonZero<i128> = _

The smallest value that can be represented by this non-zero integer type, equal to i128::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!(NonZeroI128::MIN.get(), i128::MIN);
1.70.0 · source

pub const MAX: NonZero<i128> = _

The largest value that can be represented by this non-zero integer type, equal to i128::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!(NonZeroI128::MAX.get(), i128::MAX);
1.64.0 (const: 1.64.0) · source

pub const fn abs(self) -> NonZero<i128>

Computes the absolute value of self. See i128::abs for documentation on overflow behaviour.

§Example
let pos = NonZeroI128::new(1)?;
let neg = NonZeroI128::new(-1)?;

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<i128>>

Checked absolute value. Checks for overflow and returns None if self == NonZeroI128::MIN. The result cannot be zero.

§Example
let pos = NonZeroI128::new(1)?;
let neg = NonZeroI128::new(-1)?;
let min = NonZeroI128::new(i128::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<i128>, bool)

Computes the absolute value of self, with overflow information, see i128::overflowing_abs.

§Example
let pos = NonZeroI128::new(1)?;
let neg = NonZeroI128::new(-1)?;
let min = NonZeroI128::new(i128::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<i128>

Saturating absolute value, see i128::saturating_abs.

§Example
let pos = NonZeroI128::new(1)?;
let neg = NonZeroI128::new(-1)?;
let min = NonZeroI128::new(i128::MIN)?;
let min_plus = NonZeroI128::new(i128::MIN + 1)?;
let max = NonZeroI128::new(i128::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<i128>

Wrapping absolute value, see i128::wrapping_abs.

§Example
let pos = NonZeroI128::new(1)?;
let neg = NonZeroI128::new(-1)?;
let min = NonZeroI128::new(i128::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<u128>

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

§Example

let u_pos = NonZeroU128::new(1)?;
let i_pos = NonZeroI128::new(1)?;
let i_neg = NonZeroI128::new(-1)?;
let i_min = NonZeroI128::new(i128::MIN)?;
let u_max = NonZeroU128::new(u128::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 = NonZeroI128::new(5)?;
let neg_five = NonZeroI128::new(-5)?;

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 = NonZeroI128::new(5)?;
let neg_five = NonZeroI128::new(-5)?;

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<i128>>

Checked negation. Computes -self, returning None if self == NonZeroI128::MIN.

§Example
let pos_five = NonZeroI128::new(5)?;
let neg_five = NonZeroI128::new(-5)?;
let min = NonZeroI128::new(i128::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<i128>, bool)

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

See i128::overflowing_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroI128::new(5)?;
let neg_five = NonZeroI128::new(-5)?;
let min = NonZeroI128::new(i128::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<i128>

Saturating negation. Computes -self, returning NonZeroI128::MAX if self == NonZeroI128::MIN instead of overflowing.

§Example
let pos_five = NonZeroI128::new(5)?;
let neg_five = NonZeroI128::new(-5)?;
let min = NonZeroI128::new(i128::MIN)?;
let min_plus_one = NonZeroI128::new(i128::MIN + 1)?;
let max = NonZeroI128::new(i128::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<i128>

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

See i128::wrapping_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroI128::new(5)?;
let neg_five = NonZeroI128::new(-5)?;
let min = NonZeroI128::new(i128::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<i128>) -> Option<NonZero<i128>>

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 = NonZeroI128::new(2)?;
let four = NonZeroI128::new(4)?;
let max = NonZeroI128::new(i128::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<i128>) -> NonZero<i128>

Multiplies two non-zero integers together. Return NonZeroI128::MAX on overflow.

§Examples
let two = NonZeroI128::new(2)?;
let four = NonZeroI128::new(4)?;
let max = NonZeroI128::new(i128::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<i128>) -> NonZero<i128>

🔬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 > i128::MAX, or self * rhs < i128::MIN.

§Examples
#![feature(nonzero_ops)]

let two = NonZeroI128::new(2)?;
let four = NonZeroI128::new(4)?;

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<i128>>

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 = NonZeroI128::new(3)?;
let twenty_seven = NonZeroI128::new(27)?;
let half_max = NonZeroI128::new(i128::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<i128>

Raise non-zero value to an integer power. Return NonZeroI128::MIN or NonZeroI128::MAX on overflow.

§Examples
let three = NonZeroI128::new(3)?;
let twenty_seven = NonZeroI128::new(27)?;
let max = NonZeroI128::new(i128::MAX)?;

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

impl NonZero<isize>

1.67.0 · source

pub const BITS: u32 = 64u32

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

This value is equal to isize::BITS.

§Examples

assert_eq!(NonZeroIsize::BITS, isize::BITS);
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 = std::num::NonZeroIsize::new(-1isize).unwrap();

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 = std::num::NonZeroIsize::new(0b0101000).unwrap();

assert_eq!(n.trailing_zeros(), 3);
const: unstable · source

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

🔬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(generic_nonzero, non_zero_count_ones)]
let a = NonZero::<isize>::new(0b100_0000)?;
let b = NonZero::<isize>::new(0b100_0011)?;

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

pub const MIN: NonZero<isize> = _

The smallest value that can be represented by this non-zero integer type, equal to isize::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!(NonZeroIsize::MIN.get(), isize::MIN);
1.70.0 · source

pub const MAX: NonZero<isize> = _

The largest value that can be represented by this non-zero integer type, equal to isize::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!(NonZeroIsize::MAX.get(), isize::MAX);
1.64.0 (const: 1.64.0) · source

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

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

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

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<isize>>

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

§Example
let pos = NonZeroIsize::new(1)?;
let neg = NonZeroIsize::new(-1)?;
let min = NonZeroIsize::new(isize::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<isize>, bool)

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

§Example
let pos = NonZeroIsize::new(1)?;
let neg = NonZeroIsize::new(-1)?;
let min = NonZeroIsize::new(isize::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<isize>

Saturating absolute value, see isize::saturating_abs.

§Example
let pos = NonZeroIsize::new(1)?;
let neg = NonZeroIsize::new(-1)?;
let min = NonZeroIsize::new(isize::MIN)?;
let min_plus = NonZeroIsize::new(isize::MIN + 1)?;
let max = NonZeroIsize::new(isize::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<isize>

Wrapping absolute value, see isize::wrapping_abs.

§Example
let pos = NonZeroIsize::new(1)?;
let neg = NonZeroIsize::new(-1)?;
let min = NonZeroIsize::new(isize::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<usize>

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

§Example

let u_pos = NonZeroUsize::new(1)?;
let i_pos = NonZeroIsize::new(1)?;
let i_neg = NonZeroIsize::new(-1)?;
let i_min = NonZeroIsize::new(isize::MIN)?;
let u_max = NonZeroUsize::new(usize::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 = NonZeroIsize::new(5)?;
let neg_five = NonZeroIsize::new(-5)?;

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 = NonZeroIsize::new(5)?;
let neg_five = NonZeroIsize::new(-5)?;

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<isize>>

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

§Example
let pos_five = NonZeroIsize::new(5)?;
let neg_five = NonZeroIsize::new(-5)?;
let min = NonZeroIsize::new(isize::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<isize>, bool)

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

See isize::overflowing_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroIsize::new(5)?;
let neg_five = NonZeroIsize::new(-5)?;
let min = NonZeroIsize::new(isize::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<isize>

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

§Example
let pos_five = NonZeroIsize::new(5)?;
let neg_five = NonZeroIsize::new(-5)?;
let min = NonZeroIsize::new(isize::MIN)?;
let min_plus_one = NonZeroIsize::new(isize::MIN + 1)?;
let max = NonZeroIsize::new(isize::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<isize>

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

See isize::wrapping_neg for documentation on overflow behaviour.

§Example
let pos_five = NonZeroIsize::new(5)?;
let neg_five = NonZeroIsize::new(-5)?;
let min = NonZeroIsize::new(isize::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<isize>) -> Option<NonZero<isize>>

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 = NonZeroIsize::new(2)?;
let four = NonZeroIsize::new(4)?;
let max = NonZeroIsize::new(isize::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<isize>) -> NonZero<isize>

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

§Examples
let two = NonZeroIsize::new(2)?;
let four = NonZeroIsize::new(4)?;
let max = NonZeroIsize::new(isize::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<isize>) -> NonZero<isize>

🔬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 > isize::MAX, or self * rhs < isize::MIN.

§Examples
#![feature(nonzero_ops)]

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

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<isize>>

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 = NonZeroIsize::new(3)?;
let twenty_seven = NonZeroIsize::new(27)?;
let half_max = NonZeroIsize::new(isize::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<isize>

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

§Examples
let three = NonZeroIsize::new(3)?;
let twenty_seven = NonZeroIsize::new(27)?;
let max = NonZeroIsize::new(isize::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>

source§

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

Formats the value using the given formatter.
1.45.0 · source§

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

§

type Output = NonZero<T>

The resulting type after applying the | operator.
source§

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>,

§

type Output = NonZero<T>

The resulting type after applying the | operator.
source§

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>,

§

type Output = NonZero<T>

The resulting type after applying the | operator.
source§

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>>,

source§

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>>,

source§

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

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

impl<T> Clone for NonZero<T>

source§

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>

source§

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>

source§

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

Formats the value using the given formatter. Read more
1.51.0 · source§

impl Div<NonZero<u128>> for u128

source§

fn div(self, other: NonZero<u128>) -> u128

This operation rounds towards zero, truncating any fractional part of the exact result, and cannot panic.

§

type Output = u128

The resulting type after applying the / operator.
1.51.0 · source§

impl Div<NonZero<u16>> for u16

source§

fn div(self, other: NonZero<u16>) -> u16

This operation rounds towards zero, truncating any fractional part of the exact result, and cannot panic.

§

type Output = u16

The resulting type after applying the / operator.
1.51.0 · source§

impl Div<NonZero<u32>> for u32

source§

fn div(self, other: NonZero<u32>) -> u32

This operation rounds towards zero, truncating any fractional part of the exact result, and cannot panic.

§

type Output = u32

The resulting type after applying the / operator.
1.51.0 · source§

impl Div<NonZero<u64>> for u64

source§

fn div(self, other: NonZero<u64>) -> u64

This operation rounds towards zero, truncating any fractional part of the exact result, and cannot panic.

§

type Output = u64

The resulting type after applying the / operator.
1.51.0 · source§

impl Div<NonZero<u8>> for u8

source§

fn div(self, other: NonZero<u8>) -> u8

This operation rounds towards zero, truncating any fractional part of the exact result, and cannot panic.

§

type Output = u8

The resulting type after applying the / operator.
1.51.0 · source§

impl Div<NonZero<usize>> for usize

source§

fn div(self, other: NonZero<usize>) -> usize

This operation rounds towards zero, truncating any fractional part of the exact result, and cannot panic.

§

type Output = usize

The resulting type after applying the / operator.
source§

impl From<Alignment> for NonZero<usize>

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fn from(align: Alignment) -> NonZero<usize>

Converts to this type from the input type.
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.
1.41.0 · source§

impl From<NonZero<i16>> for NonZero<i128>

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fn from(small: NonZero<i16>) -> NonZero<i128>

Converts NonZero<i16> to NonZero<i128> losslessly.

1.41.0 · source§

impl From<NonZero<i16>> for NonZero<i32>

source§

fn from(small: NonZero<i16>) -> NonZero<i32>

Converts NonZero<i16> to NonZero<i32> losslessly.

1.41.0 · source§

impl From<NonZero<i16>> for NonZero<i64>

source§

fn from(small: NonZero<i16>) -> NonZero<i64>

Converts NonZero<i16> to NonZero<i64> losslessly.

1.41.0 · source§

impl From<NonZero<i16>> for NonZero<isize>

source§

fn from(small: NonZero<i16>) -> NonZero<isize>

Converts NonZero<i16> to NonZero<isize> losslessly.

1.41.0 · source§

impl From<NonZero<i32>> for NonZero<i128>

source§

fn from(small: NonZero<i32>) -> NonZero<i128>

Converts NonZero<i32> to NonZero<i128> losslessly.

1.41.0 · source§

impl From<NonZero<i32>> for NonZero<i64>

source§

fn from(small: NonZero<i32>) -> NonZero<i64>

Converts NonZero<i32> to NonZero<i64> losslessly.

1.41.0 · source§

impl From<NonZero<i64>> for NonZero<i128>

source§

fn from(small: NonZero<i64>) -> NonZero<i128>

Converts NonZero<i64> to NonZero<i128> losslessly.

1.41.0 · source§

impl From<NonZero<i8>> for NonZero<i128>

source§

fn from(small: NonZero<i8>) -> NonZero<i128>

Converts NonZero<i8> to NonZero<i128> losslessly.

1.41.0 · source§

impl From<NonZero<i8>> for NonZero<i16>

source§

fn from(small: NonZero<i8>) -> NonZero<i16>

Converts NonZero<i8> to NonZero<i16> losslessly.

1.41.0 · source§

impl From<NonZero<i8>> for NonZero<i32>

source§

fn from(small: NonZero<i8>) -> NonZero<i32>

Converts NonZero<i8> to NonZero<i32> losslessly.

1.41.0 · source§

impl From<NonZero<i8>> for NonZero<i64>

source§

fn from(small: NonZero<i8>) -> NonZero<i64>

Converts NonZero<i8> to NonZero<i64> losslessly.

1.41.0 · source§

impl From<NonZero<i8>> for NonZero<isize>

source§

fn from(small: NonZero<i8>) -> NonZero<isize>

Converts NonZero<i8> to NonZero<isize> losslessly.

1.41.0 · source§

impl From<NonZero<u16>> for NonZero<i128>

source§

fn from(small: NonZero<u16>) -> NonZero<i128>

Converts NonZero<u16> to NonZero<i128> losslessly.

1.41.0 · source§

impl From<NonZero<u16>> for NonZero<i32>

source§

fn from(small: NonZero<u16>) -> NonZero<i32>

Converts NonZero<u16> to NonZero<i32> losslessly.

1.41.0 · source§

impl From<NonZero<u16>> for NonZero<i64>

source§

fn from(small: NonZero<u16>) -> NonZero<i64>

Converts NonZero<u16> to NonZero<i64> losslessly.

1.41.0 · source§

impl From<NonZero<u16>> for NonZero<u128>

source§

fn from(small: NonZero<u16>) -> NonZero<u128>

Converts NonZero<u16> to NonZero<u128> losslessly.

1.41.0 · source§

impl From<NonZero<u16>> for NonZero<u32>

source§

fn from(small: NonZero<u16>) -> NonZero<u32>

Converts NonZero<u16> to NonZero<u32> losslessly.

1.41.0 · source§

impl From<NonZero<u16>> for NonZero<u64>

source§

fn from(small: NonZero<u16>) -> NonZero<u64>

Converts NonZero<u16> to NonZero<u64> losslessly.

1.41.0 · source§

impl From<NonZero<u16>> for NonZero<usize>

source§

fn from(small: NonZero<u16>) -> NonZero<usize>

Converts NonZero<u16> to NonZero<usize> losslessly.

1.41.0 · source§

impl From<NonZero<u32>> for NonZero<i128>

source§

fn from(small: NonZero<u32>) -> NonZero<i128>

Converts NonZero<u32> to NonZero<i128> losslessly.

1.41.0 · source§

impl From<NonZero<u32>> for NonZero<i64>

source§

fn from(small: NonZero<u32>) -> NonZero<i64>

Converts NonZero<u32> to NonZero<i64> losslessly.

1.41.0 · source§

impl From<NonZero<u32>> for NonZero<u128>

source§

fn from(small: NonZero<u32>) -> NonZero<u128>

Converts NonZero<u32> to NonZero<u128> losslessly.

1.41.0 · source§

impl From<NonZero<u32>> for NonZero<u64>

source§

fn from(small: NonZero<u32>) -> NonZero<u64>

Converts NonZero<u32> to NonZero<u64> losslessly.

1.41.0 · source§

impl From<NonZero<u64>> for NonZero<i128>

source§

fn from(small: NonZero<u64>) -> NonZero<i128>

Converts NonZero<u64> to NonZero<i128> losslessly.

1.41.0 · source§

impl From<NonZero<u64>> for NonZero<u128>

source§

fn from(small: NonZero<u64>) -> NonZero<u128>

Converts NonZero<u64> to NonZero<u128> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<i128>

source§

fn from(small: NonZero<u8>) -> NonZero<i128>

Converts NonZero<u8> to NonZero<i128> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<i16>

source§

fn from(small: NonZero<u8>) -> NonZero<i16>

Converts NonZero<u8> to NonZero<i16> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<i32>

source§

fn from(small: NonZero<u8>) -> NonZero<i32>

Converts NonZero<u8> to NonZero<i32> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<i64>

source§

fn from(small: NonZero<u8>) -> NonZero<i64>

Converts NonZero<u8> to NonZero<i64> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<isize>

source§

fn from(small: NonZero<u8>) -> NonZero<isize>

Converts NonZero<u8> to NonZero<isize> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<u128>

source§

fn from(small: NonZero<u8>) -> NonZero<u128>

Converts NonZero<u8> to NonZero<u128> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<u16>

source§

fn from(small: NonZero<u8>) -> NonZero<u16>

Converts NonZero<u8> to NonZero<u16> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<u32>

source§

fn from(small: NonZero<u8>) -> NonZero<u32>

Converts NonZero<u8> to NonZero<u32> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<u64>

source§

fn from(small: NonZero<u8>) -> NonZero<u64>

Converts NonZero<u8> to NonZero<u64> losslessly.

1.41.0 · source§

impl From<NonZero<u8>> for NonZero<usize>

source§

fn from(small: NonZero<u8>) -> NonZero<usize>

Converts NonZero<u8> to NonZero<usize> losslessly.

1.35.0 · source§

impl FromStr for NonZero<i128>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<i128>, <NonZero<i128> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<i16>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<i16>, <NonZero<i16> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<i32>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<i32>, <NonZero<i32> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<i64>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<i64>, <NonZero<i64> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<i8>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

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
1.35.0 · source§

impl FromStr for NonZero<isize>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

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

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<u128>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<u128>, <NonZero<u128> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<u16>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<u16>, <NonZero<u16> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<u32>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<u32>, <NonZero<u32> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<u64>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<u64>, <NonZero<u64> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<u8>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str(src: &str) -> Result<NonZero<u8>, <NonZero<u8> as FromStr>::Err>

Parses a string s to return a value of this type. Read more
1.35.0 · source§

impl FromStr for NonZero<usize>

§

type Err = ParseIntError

The associated error which can be returned from parsing.
source§

fn from_str( src: &str ) -> Result<NonZero<usize>, <NonZero<usize> 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
1.28.0 · 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.
1.71.0 · source§

impl Neg for &NonZero<i128>

§

type Output = <NonZero<i128> as Neg>::Output

The resulting type after applying the - operator.
source§

fn neg(self) -> <NonZero<i128> as Neg>::Output

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for &NonZero<i16>

§

type Output = <NonZero<i16> as Neg>::Output

The resulting type after applying the - operator.
source§

fn neg(self) -> <NonZero<i16> as Neg>::Output

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for &NonZero<i32>

§

type Output = <NonZero<i32> as Neg>::Output

The resulting type after applying the - operator.
source§

fn neg(self) -> <NonZero<i32> as Neg>::Output

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for &NonZero<i64>

§

type Output = <NonZero<i64> as Neg>::Output

The resulting type after applying the - operator.
source§

fn neg(self) -> <NonZero<i64> as Neg>::Output

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for &NonZero<i8>

§

type Output = <NonZero<i8> as Neg>::Output

The resulting type after applying the - operator.
source§

fn neg(self) -> <NonZero<i8> as Neg>::Output

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for &NonZero<isize>

§

type Output = <NonZero<isize> as Neg>::Output

The resulting type after applying the - operator.
source§

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

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for NonZero<i128>

§

type Output = NonZero<i128>

The resulting type after applying the - operator.
source§

fn neg(self) -> NonZero<i128>

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for NonZero<i16>

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type Output = NonZero<i16>

The resulting type after applying the - operator.
source§

fn neg(self) -> NonZero<i16>

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for NonZero<i32>

§

type Output = NonZero<i32>

The resulting type after applying the - operator.
source§

fn neg(self) -> NonZero<i32>

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for NonZero<i64>

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type Output = NonZero<i64>

The resulting type after applying the - operator.
source§

fn neg(self) -> NonZero<i64>

Performs the unary - operation. 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.
source§

fn neg(self) -> NonZero<i8>

Performs the unary - operation. Read more
1.71.0 · source§

impl Neg for NonZero<isize>

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type Output = NonZero<isize>

The resulting type after applying the - operator.
source§

fn neg(self) -> NonZero<isize>

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.
1.28.0 · source§

impl<T> Ord for NonZero<T>

source§

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

This method returns an Ordering between self and other. Read more
source§

fn max(self, other: NonZero<T>) -> NonZero<T>

Compares and returns the maximum of two values. Read more
source§

fn min(self, other: NonZero<T>) -> NonZero<T>

Compares and returns the minimum of two values. Read more
source§

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

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

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

This method 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>

source§

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

This method returns an ordering between self and other values if one exists. Read more
source§

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

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

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

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

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

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

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
1.51.0 · source§

impl Rem<NonZero<u128>> for u128

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fn rem(self, other: NonZero<u128>) -> u128

This operation satisfies n % d == n - (n / d) * d, and cannot panic.

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type Output = u128

The resulting type after applying the % operator.
1.51.0 · source§

impl Rem<NonZero<u16>> for u16

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fn rem(self, other: NonZero<u16>) -> u16

This operation satisfies n % d == n - (n / d) * d, and cannot panic.

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type Output = u16

The resulting type after applying the % operator.
1.51.0 · source§

impl Rem<NonZero<u32>> for u32

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fn rem(self, other: NonZero<u32>) -> u32

This operation satisfies n % d == n - (n / d) * d, and cannot panic.

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type Output = u32

The resulting type after applying the % operator.
1.51.0 · source§

impl Rem<NonZero<u64>> for u64

source§

fn rem(self, other: NonZero<u64>) -> u64

This operation satisfies n % d == n - (n / d) * d, and cannot panic.

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type Output = u64

The resulting type after applying the % operator.
1.51.0 · source§

impl Rem<NonZero<u8>> for u8

source§

fn rem(self, other: NonZero<u8>) -> u8

This operation satisfies n % d == n - (n / d) * d, and cannot panic.

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type Output = u8

The resulting type after applying the % operator.
1.51.0 · source§

impl Rem<NonZero<usize>> for usize

source§

fn rem(self, other: NonZero<usize>) -> usize

This operation satisfies n % d == n - (n / d) * d, and cannot panic.

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type Output = usize

The resulting type after applying the % operator.
1.49.0 · source§

impl TryFrom<NonZero<i128>> for NonZero<i16>

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fn try_from( value: NonZero<i128> ) -> Result<NonZero<i16>, <NonZero<i16> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<i16>.

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type Error = TryFromIntError

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

impl TryFrom<NonZero<i128>> for NonZero<i32>

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fn try_from( value: NonZero<i128> ) -> Result<NonZero<i32>, <NonZero<i32> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<i32>.

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type Error = TryFromIntError

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

impl TryFrom<NonZero<i128>> for NonZero<i64>

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fn try_from( value: NonZero<i128> ) -> Result<NonZero<i64>, <NonZero<i64> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<i64>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
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<i128>> for NonZero<isize>

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

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

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type Error = TryFromIntError

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

impl TryFrom<NonZero<i128>> for NonZero<u128>

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fn try_from( value: NonZero<i128> ) -> Result<NonZero<u128>, <NonZero<u128> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<u128>.

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type Error = TryFromIntError

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

impl TryFrom<NonZero<i128>> for NonZero<u16>

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fn try_from( value: NonZero<i128> ) -> Result<NonZero<u16>, <NonZero<u16> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<u16>.

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type Error = TryFromIntError

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

impl TryFrom<NonZero<i128>> for NonZero<u32>

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fn try_from( value: NonZero<i128> ) -> Result<NonZero<u32>, <NonZero<u32> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<u32>.

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type Error = TryFromIntError

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

impl TryFrom<NonZero<i128>> for NonZero<u64>

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fn try_from( value: NonZero<i128> ) -> Result<NonZero<u64>, <NonZero<u64> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<u64>.

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type Error = TryFromIntError

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

impl TryFrom<NonZero<i128>> for NonZero<u8>

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fn try_from( value: NonZero<i128> ) -> Result<NonZero<u8>, <NonZero<u8> as TryFrom<NonZero<i128>>>::Error>

Attempts to convert NonZero<i128> to NonZero<u8>.

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type Error = TryFromIntError

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

impl TryFrom<NonZero<i128>> for NonZero<usize>

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

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

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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<i16>> for NonZero<u128>

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fn try_from( value: NonZero<i16> ) -> Result<NonZero<u128>, <NonZero<u128> as TryFrom<NonZero<i16>>>::Error>

Attempts to convert NonZero<i16> to NonZero<u128>.

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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<u16>

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fn try_from( value: NonZero<i16> ) -> Result<NonZero<u16>, <NonZero<u16> as TryFrom<NonZero<i16>>>::Error>

Attempts to convert NonZero<i16> to NonZero<u16>.

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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<u32>

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fn try_from( value: NonZero<i16> ) -> Result<NonZero<u32>, <NonZero<u32> as TryFrom<NonZero<i16>>>::Error>

Attempts to convert NonZero<i16> to NonZero<u32>.

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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<u64>

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fn try_from( value: NonZero<i16> ) -> Result<NonZero<u64>, <NonZero<u64> as TryFrom<NonZero<i16>>>::Error>

Attempts to convert NonZero<i16> to NonZero<u64>.

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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<u8>

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fn try_from( value: NonZero<i16> ) -> Result<NonZero<u8>, <NonZero<u8> as TryFrom<NonZero<i16>>>::Error>

Attempts to convert NonZero<i16> to NonZero<u8>.

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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<usize>

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

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

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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<i16>

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fn try_from( value: NonZero<i32> ) -> Result<NonZero<i16>, <NonZero<i16> as TryFrom<NonZero<i32>>>::Error>

Attempts to convert NonZero<i32> to NonZero<i16>.

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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<i32>> for NonZero<isize>

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

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

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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<u128>

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fn try_from( value: NonZero<i32> ) -> Result<NonZero<u128>, <NonZero<u128> as TryFrom<NonZero<i32>>>::Error>

Attempts to convert NonZero<i32> to NonZero<u128>.

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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<u16>

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fn try_from( value: NonZero<i32> ) -> Result<NonZero<u16>, <NonZero<u16> as TryFrom<NonZero<i32>>>::Error>

Attempts to convert NonZero<i32> to NonZero<u16>.

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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<u32>

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fn try_from( value: NonZero<i32> ) -> Result<NonZero<u32>, <NonZero<u32> as TryFrom<NonZero<i32>>>::Error>

Attempts to convert NonZero<i32> to NonZero<u32>.

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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<u64>

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fn try_from( value: NonZero<i32> ) -> Result<NonZero<u64>, <NonZero<u64> as TryFrom<NonZero<i32>>>::Error>

Attempts to convert NonZero<i32> to NonZero<u64>.

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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<u8>

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fn try_from( value: NonZero<i32> ) -> Result<NonZero<u8>, <NonZero<u8> as TryFrom<NonZero<i32>>>::Error>

Attempts to convert NonZero<i32> to NonZero<u8>.

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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<usize>

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

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

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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<i16>

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fn try_from( value: NonZero<i64> ) -> Result<NonZero<i16>, <NonZero<i16> as TryFrom<NonZero<i64>>>::Error>

Attempts to convert NonZero<i64> to NonZero<i16>.

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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<i32>

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fn try_from( value: NonZero<i64> ) -> Result<NonZero<i32>, <NonZero<i32> as TryFrom<NonZero<i64>>>::Error>

Attempts to convert NonZero<i64> to NonZero<i32>.

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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<i64>> for NonZero<isize>

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

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

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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<u128>

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fn try_from( value: NonZero<i64> ) -> Result<NonZero<u128>, <NonZero<u128> as TryFrom<NonZero<i64>>>::Error>

Attempts to convert NonZero<i64> to NonZero<u128>.

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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<u16>

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fn try_from( value: NonZero<i64> ) -> Result<NonZero<u16>, <NonZero<u16> as TryFrom<NonZero<i64>>>::Error>

Attempts to convert NonZero<i64> to NonZero<u16>.

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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<u32>

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fn try_from( value: NonZero<i64> ) -> Result<NonZero<u32>, <NonZero<u32> as TryFrom<NonZero<i64>>>::Error>

Attempts to convert NonZero<i64> to NonZero<u32>.

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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<u64>

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fn try_from( value: NonZero<i64> ) -> Result<NonZero<u64>, <NonZero<u64> as TryFrom<NonZero<i64>>>::Error>

Attempts to convert NonZero<i64> to NonZero<u64>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<i64>> for NonZero<u8>

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fn try_from( value: NonZero<i64> ) -> Result<NonZero<u8>, <NonZero<u8> as TryFrom<NonZero<i64>>>::Error>

Attempts to convert NonZero<i64> to NonZero<u8>.

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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<usize>

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

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

§

type Error = TryFromIntError

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

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

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<i8>> for NonZero<u16>

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

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

§

type Error = TryFromIntError

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

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

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<i8>> for NonZero<u64>

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

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

§

type Error = TryFromIntError

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

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

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

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

§

type Error = TryFromIntError

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

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

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<i128>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<i16>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<i32>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<i64>

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

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

§

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>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<u128>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<u16>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<u32>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<u64>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<u8>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<isize>> for NonZero<usize>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<i128>

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fn try_from( value: NonZero<u128> ) -> Result<NonZero<i128>, <NonZero<i128> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<i128>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<i16>

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fn try_from( value: NonZero<u128> ) -> Result<NonZero<i16>, <NonZero<i16> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<i16>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<i32>

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fn try_from( value: NonZero<u128> ) -> Result<NonZero<i32>, <NonZero<i32> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<i32>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<i64>

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fn try_from( value: NonZero<u128> ) -> Result<NonZero<i64>, <NonZero<i64> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<i64>.

§

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>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<isize>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<u16>

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fn try_from( value: NonZero<u128> ) -> Result<NonZero<u16>, <NonZero<u16> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<u16>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<u32>

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fn try_from( value: NonZero<u128> ) -> Result<NonZero<u32>, <NonZero<u32> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<u32>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<u64>

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fn try_from( value: NonZero<u128> ) -> Result<NonZero<u64>, <NonZero<u64> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<u64>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<u8>

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fn try_from( value: NonZero<u128> ) -> Result<NonZero<u8>, <NonZero<u8> as TryFrom<NonZero<u128>>>::Error>

Attempts to convert NonZero<u128> to NonZero<u8>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u128>> for NonZero<usize>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u16>> for NonZero<i16>

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fn try_from( value: NonZero<u16> ) -> Result<NonZero<i16>, <NonZero<i16> as TryFrom<NonZero<u16>>>::Error>

Attempts to convert NonZero<u16> to NonZero<i16>.

§

type Error = TryFromIntError

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

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>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u16>> for NonZero<isize>

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u16>> for NonZero<u8>

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fn try_from( value: NonZero<u16> ) -> Result<NonZero<u8>, <NonZero<u8> as TryFrom<NonZero<u16>>>::Error>

Attempts to convert NonZero<u16> to NonZero<u8>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u32>> for NonZero<i16>

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fn try_from( value: NonZero<u32> ) -> Result<NonZero<i16>, <NonZero<i16> as TryFrom<NonZero<u32>>>::Error>

Attempts to convert NonZero<u32> to NonZero<i16>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u32>> for NonZero<i32>

source§

fn try_from( value: NonZero<u32> ) -> Result<NonZero<i32>, <NonZero<i32> as TryFrom<NonZero<u32>>>::Error>

Attempts to convert NonZero<u32> to NonZero<i32>.

§

type Error = TryFromIntError

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

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

source§

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u32>> for NonZero<isize>

source§

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u32>> for NonZero<u16>

source§

fn try_from( value: NonZero<u32> ) -> Result<NonZero<u16>, <NonZero<u16> as TryFrom<NonZero<u32>>>::Error>

Attempts to convert NonZero<u32> to NonZero<u16>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u32>> for NonZero<u8>

source§

fn try_from( value: NonZero<u32> ) -> Result<NonZero<u8>, <NonZero<u8> as TryFrom<NonZero<u32>>>::Error>

Attempts to convert NonZero<u32> to NonZero<u8>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u32>> for NonZero<usize>

source§

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<i16>

source§

fn try_from( value: NonZero<u64> ) -> Result<NonZero<i16>, <NonZero<i16> as TryFrom<NonZero<u64>>>::Error>

Attempts to convert NonZero<u64> to NonZero<i16>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<i32>

source§

fn try_from( value: NonZero<u64> ) -> Result<NonZero<i32>, <NonZero<i32> as TryFrom<NonZero<u64>>>::Error>

Attempts to convert NonZero<u64> to NonZero<i32>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<i64>

source§

fn try_from( value: NonZero<u64> ) -> Result<NonZero<i64>, <NonZero<i64> as TryFrom<NonZero<u64>>>::Error>

Attempts to convert NonZero<u64> to NonZero<i64>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<i8>

source§

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<isize>

source§

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

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

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<u16>

source§

fn try_from( value: NonZero<u64> ) -> Result<NonZero<u16>, <NonZero<u16> as TryFrom<NonZero<u64>>>::Error>

Attempts to convert NonZero<u64> to NonZero<u16>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<u32>

source§

fn try_from( value: NonZero<u64> ) -> Result<NonZero<u32>, <NonZero<u32> as TryFrom<NonZero<u64>>>::Error>

Attempts to convert NonZero<u64> to NonZero<u32>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<u8>

source§

fn try_from( value: NonZero<u64> ) -> Result<NonZero<u8>, <NonZero<u8> as TryFrom<NonZero<u64>>>::Error>

Attempts to convert NonZero<u64> to NonZero<u8>.

§

type Error = TryFromIntError

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

impl TryFrom<NonZero<u64>> for NonZero<usize>

source§

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

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

§

type Error = TryFromIntError

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

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

source§

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

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

§

type Error = TryFromIntError

The type returned in the event of a conversion error.
source§

impl TryFrom<NonZero<usize>> for Alignment

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type Error = TryFromIntError

The type returned in the event of a conversion error.
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fn try_from( align: NonZero<usize> ) -> Result<Alignment, <Alignment as TryFrom<NonZero<usize>>>::Error>

Performs the conversion.
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impl TryFrom<NonZero<usize>> for NonZero<i128>

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

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

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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<i16>

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

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

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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<i32>

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

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

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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<i64>

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

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

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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.
1.49.0 · source§

impl TryFrom<NonZero<usize>> for NonZero<isize>

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

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

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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<u128>

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

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

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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<u16>

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

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

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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<u32>

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

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

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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<u64>

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

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

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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<u8>

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

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

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type Error = TryFromIntError

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

impl TryFrom<i128> for NonZero<i128>

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

Attempts to convert i128 to NonZero<i128>.

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type Error = TryFromIntError

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

impl TryFrom<i16> for NonZero<i16>

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

Attempts to convert i16 to NonZero<i16>.

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type Error = TryFromIntError

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

impl TryFrom<i32> for NonZero<i32>

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

Attempts to convert i32 to NonZero<i32>.

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type Error = TryFromIntError

The type returned in the event of a conversion error.
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impl TryFrom<i64> for NonZero<i64>

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

Attempts to convert i64 to NonZero<i64>.

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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<