Struct core_foundation::number::CFNumber

pub struct CFNumber(_);

An immutable numeric value.

Methods

impl CFNumber

pub fn to_i32(&self) -> Option<i32>

pub fn to_i64(&self) -> Option<i64>

pub fn to_f32(&self) -> Option<f32>

pub fn to_f64(&self) -> Option<f64>

Trait Implementations

impl ConcreteCFType for CFNumber

impl TCFType for CFNumber

type Ref = CFNumberRef

The reference type wrapped inside this type.

fn as_concrete_TypeRef(&self) -> CFNumberRef

Returns the object as its concrete TypeRef.

unsafe fn wrap_under_get_rule(reference: CFNumberRef) -> Self

Returns an instance of the object, wrapping the underlying CFTypeRef subclass. Use this when following Core Foundation's "Get Rule". The reference count is bumped.

fn as_CFTypeRef(&self) -> CFTypeRef

Returns the object as a raw CFTypeRef. The reference count is not adjusted.

unsafe fn wrap_under_create_rule(reference: CFNumberRef) -> Self

Returns an instance of the object, wrapping the underlying CFTypeRef subclass. Use this when following Core Foundation's "Create Rule". The reference count is not bumped.

fn type_id() -> CFTypeID

Returns the type ID for this class.

fn as_CFType(&self) -> CFType

Returns the object as a wrapped CFType. The reference count is incremented by one.

fn into_CFType(self) -> CFType where
    Self: Sized, 

Returns the object as a wrapped CFType. Consumes self and avoids changing the reference count.

fn retain_count(&self) -> CFIndex

Returns the reference count of the object. It is unwise to do anything other than test whether the return value of this method is greater than zero.

fn type_of(&self) -> CFTypeID

Returns the type ID of this object.

fn show(&self)

Writes a debugging version of this object on standard error.

fn instance_of<OtherCFType: TCFType>(&self) -> bool

Returns true if this value is an instance of another type.

impl<'a> ToVoid<CFNumber> for &'a CFNumber

fn to_void(&self) -> *const c_void

impl ToVoid<CFNumber> for CFNumber

fn to_void(&self) -> *const c_void

impl ToVoid<CFNumber> for CFNumberRef

fn to_void(&self) -> *const c_void

impl CFPropertyListSubClass for CFNumber

fn to_CFPropertyList(&self) -> CFPropertyList

Create an instance of the superclass type [CFPropertyList] for this instance.

fn into_CFPropertyList(self) -> CFPropertyList where
    Self: Sized, 

Equal to [to_CFPropertyList], but consumes self and avoids changing the reference count.

impl Drop for CFNumber

fn drop(&mut self)

Executes the destructor for this type.

impl From<i32> for CFNumber

fn from(value: i32) -> Self

Performs the conversion.

impl From<i64> for CFNumber

fn from(value: i64) -> Self

Performs the conversion.

impl From<f32> for CFNumber

fn from(value: f32) -> Self

Performs the conversion.

impl From<f64> for CFNumber

fn from(value: f64) -> Self

Performs the conversion.

impl Clone for CFNumber

fn clone(&self) -> CFNumber

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for CFNumber

impl Ord for CFNumber

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

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

Restrict a value to a certain interval.

impl PartialEq<CFNumber> for CFNumber

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

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

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<CFNumber> for CFNumber

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

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

#[must_use] fn lt(&self, other: &Rhs) -> bool

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

#[must_use] fn le(&self, other: &Rhs) -> bool

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

#[must_use] fn gt(&self, other: &Rhs) -> bool

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

#[must_use] fn ge(&self, other: &Rhs) -> bool

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

impl Debug for CFNumber

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

Formats the value using the given formatter.