Struct core::num::NonZeroU81.28.0[][src]

#[repr(transparent)]
pub struct NonZeroU8(_);

An integer that is known not to equal zero.

This enables some memory layout optimization. For example, Option<NonZeroU32> is the same size as u32:

use std::mem::size_of;
assert_eq!(size_of::<Option<std::num::NonZeroU32>>(), size_of::<u32>());Run

Methods

impl NonZeroU8
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Create a non-zero without checking the value.

Safety

The value must not be zero.

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

Returns the value as a primitive type.

Trait Implementations

impl Copy for NonZeroU8
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impl Clone for NonZeroU8
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Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl Eq for NonZeroU8
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impl PartialEq for NonZeroU8
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This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

impl Ord for NonZeroU8
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This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

impl PartialOrd for NonZeroU8
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This method returns an ordering between self and other values if one exists. Read more

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

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

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

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

impl Hash for NonZeroU8
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Feeds this value into the given [Hasher]. Read more

Feeds a slice of this type into the given [Hasher]. Read more

impl Debug for NonZeroU8
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Formats the value using the given formatter. Read more

impl Display for NonZeroU8
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Formats the value using the given formatter. Read more

impl Binary for NonZeroU8
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Formats the value using the given formatter.

impl Octal for NonZeroU8
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Formats the value using the given formatter.

impl LowerHex for NonZeroU8
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Formats the value using the given formatter.

impl UpperHex for NonZeroU8
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Formats the value using the given formatter.

Auto Trait Implementations

impl Send for NonZeroU8

impl Sync for NonZeroU8