Struct std::num::NonZeroIsize[][src]

pub struct NonZeroIsize(_);
Deprecated since 1.26.0

: signed non-zero integers are considered for removal due to lack of known use cases. If you’re using them, please comment on https://github.com/rust-lang/rust/issues/49137

🔬 This is a nightly-only experimental API. (nonzero #49137)

An integer that is known not to equal zero.

This may enable some memory layout optimization such as:

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

Methods

impl NonZeroIsize
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🔬 This is a nightly-only experimental API. (nonzero #49137)

Create a non-zero without checking the value.

Safety

The value must not be zero.

🔬 This is a nightly-only experimental API. (nonzero #49137)

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

🔬 This is a nightly-only experimental API. (nonzero #49137)

Returns the value as a primitive type.

Trait Implementations

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

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

Performs copy-assignment from source. Read more

impl PartialOrd<NonZeroIsize> for NonZeroIsize
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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 Octal for NonZeroIsize
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Formats the value using the given formatter.

impl Ord for NonZeroIsize
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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 Eq for NonZeroIsize
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impl Copy for NonZeroIsize
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impl Hash for NonZeroIsize
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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 PartialEq<NonZeroIsize> for NonZeroIsize
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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 LowerHex for NonZeroIsize
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Formats the value using the given formatter.

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

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

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

Auto Trait Implementations

impl Send for NonZeroIsize

impl Sync for NonZeroIsize