Struct std::num::NonZeroIsize [−][src]
pub struct NonZeroIsize(_);
: 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
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[src]
impl NonZeroIsizepub const unsafe fn new_unchecked(n: isize) -> NonZeroIsize[src]
pub const unsafe fn new_unchecked(n: isize) -> NonZeroIsizepub fn new(n: isize) -> Option<NonZeroIsize>[src]
pub fn new(n: isize) -> Option<NonZeroIsize>Create a non-zero if the given value is not zero.
pub fn get(self) -> isize[src]
pub fn get(self) -> isizeReturns the value as a primitive type.
Trait Implementations
impl Binary for NonZeroIsize[src]
impl Binary for NonZeroIsizefn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>Formats the value using the given formatter.
impl PartialEq<NonZeroIsize> for NonZeroIsize[src]
impl PartialEq<NonZeroIsize> for NonZeroIsizefn eq(&self, other: &NonZeroIsize) -> bool[src]
fn eq(&self, other: &NonZeroIsize) -> boolThis method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, other: &NonZeroIsize) -> bool[src]
fn ne(&self, other: &NonZeroIsize) -> boolThis method tests for !=.
impl Ord for NonZeroIsize[src]
impl Ord for NonZeroIsizefn cmp(&self, other: &NonZeroIsize) -> Ordering[src]
fn cmp(&self, other: &NonZeroIsize) -> OrderingThis method returns an Ordering between self and other. Read more
fn max(self, other: Self) -> Self1.21.0[src]
fn max(self, other: Self) -> SelfCompares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self1.21.0[src]
fn min(self, other: Self) -> SelfCompares and returns the minimum of two values. Read more
impl Octal for NonZeroIsize[src]
impl Octal for NonZeroIsizefn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>Formats the value using the given formatter.
impl PartialOrd<NonZeroIsize> for NonZeroIsize[src]
impl PartialOrd<NonZeroIsize> for NonZeroIsizefn partial_cmp(&self, other: &NonZeroIsize) -> Option<Ordering>[src]
fn partial_cmp(&self, other: &NonZeroIsize) -> Option<Ordering>This method returns an ordering between self and other values if one exists. Read more
fn lt(&self, other: &NonZeroIsize) -> bool[src]
fn lt(&self, other: &NonZeroIsize) -> boolThis method tests less than (for self and other) and is used by the < operator. Read more
fn le(&self, other: &NonZeroIsize) -> bool[src]
fn le(&self, other: &NonZeroIsize) -> boolThis method tests less than or equal to (for self and other) and is used by the <= operator. Read more
fn gt(&self, other: &NonZeroIsize) -> bool[src]
fn gt(&self, other: &NonZeroIsize) -> boolThis method tests greater than (for self and other) and is used by the > operator. Read more
fn ge(&self, other: &NonZeroIsize) -> bool[src]
fn ge(&self, other: &NonZeroIsize) -> boolThis method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
impl Display for NonZeroIsize[src]
impl Display for NonZeroIsizefn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>Formats the value using the given formatter. Read more
impl UpperHex for NonZeroIsize[src]
impl UpperHex for NonZeroIsizefn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>Formats the value using the given formatter.
impl Debug for NonZeroIsize[src]
impl Debug for NonZeroIsizefn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>Formats the value using the given formatter. Read more
impl LowerHex for NonZeroIsize[src]
impl LowerHex for NonZeroIsizefn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src]
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>Formats the value using the given formatter.
impl Eq for NonZeroIsize[src]
impl Eq for NonZeroIsizeimpl Hash for NonZeroIsize[src]
impl Hash for NonZeroIsizefn hash<__H>(&self, state: &mut __H) where
__H: Hasher, [src]
fn hash<__H>(&self, state: &mut __H) where
__H: Hasher, Feeds this value into the given [Hasher]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher, 1.3.0[src]
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher, Feeds a slice of this type into the given [Hasher]. Read more
impl Copy for NonZeroIsize[src]
impl Copy for NonZeroIsizeimpl Clone for NonZeroIsize[src]
impl Clone for NonZeroIsizefn clone(&self) -> NonZeroIsize[src]
fn clone(&self) -> NonZeroIsizeReturns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0[src]
fn clone_from(&mut self, source: &Self)Performs copy-assignment from source. Read more
Auto Trait Implementations
impl Send for NonZeroIsize
impl Send for NonZeroIsizeimpl Sync for NonZeroIsize
impl Sync for NonZeroIsize