Enum OptionI32 

#[repr(C, u8)]
pub enum OptionI32 {
    None,
    Some(i32),
}

Variants

None

Some(i32)

Implementations

impl OptionI32

pub fn into_option(&self) -> Option<i32>

impl OptionI32

pub fn as_option(&self) -> Option<&i32>

pub fn replace(&mut self, value: i32) -> OptionI32

pub fn is_some(&self) -> bool

pub fn is_none(&self) -> bool

pub const fn as_ref(&self) -> Option<&i32>

pub fn as_mut(&mut self) -> Option<&mut i32>

pub fn map<U, F: FnOnce(i32) -> U>(self, f: F) -> Option<U>

pub fn and_then<U, F>(self, f: F) -> Option<U>

where F: FnOnce(i32) -> Option<U>,

Trait Implementations

impl Clone for OptionI32

fn clone(&self) -> OptionI32

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionI32

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

Formats the value using the given formatter.

impl Default for OptionI32

fn default() -> OptionI32

Returns the “default value” for a type.

impl From<Option<i32>> for OptionI32

fn from(o: Option<i32>) -> OptionI32

Converts to this type from the input type.

impl From<OptionI32> for Option<i32>

fn from(o: OptionI32) -> Option<i32>

Converts to this type from the input type.

impl Hash for OptionI32

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for OptionI32

fn cmp(&self, other: &OptionI32) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for OptionI32

fn eq(&self, other: &OptionI32) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl PartialOrd for OptionI32

fn partial_cmp(&self, other: &OptionI32) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for OptionI32

impl Eq for OptionI32

impl StructuralPartialEq for OptionI32