Struct CFNumber 

#[repr(C)]
pub struct CFNumber { /* private fields */ }

Available on crate feature CFNumber only.

Apple’s documentation

Implementations

impl CFNumber

pub unsafe fn new( allocator: Option<&CFAllocator>, the_type: CFNumberType, value_ptr: *const c_void, ) -> Option<CFRetained<CFNumber>>

pub fn type(self: &CFNumber) -> CFNumberType

pub fn byte_size(self: &CFNumber) -> CFIndex

pub fn is_float_type(self: &CFNumber) -> bool

pub unsafe fn value( self: &CFNumber, the_type: CFNumberType, value_ptr: *mut c_void, ) -> bool

pub unsafe fn compare( self: &CFNumber, other_number: Option<&CFNumber>, context: *mut c_void, ) -> CFComparisonResult

impl CFNumber

pub fn new_i8(val: i8) -> CFRetained<Self>

pub fn new_i16(val: i16) -> CFRetained<Self>

pub fn new_i32(val: i32) -> CFRetained<Self>

pub fn new_i64(val: i64) -> CFRetained<Self>

pub fn new_isize(val: isize) -> CFRetained<Self>

pub fn new_f32(val: f32) -> CFRetained<Self>

pub fn new_f64(val: f64) -> CFRetained<Self>

pub fn new_cgfloat(val: CGFloat) -> CFRetained<Self>

Available on crate feature CFCGTypes only.

impl CFNumber

pub fn as_i8(&self) -> Option<i8>

pub fn as_i16(&self) -> Option<i16>

pub fn as_i32(&self) -> Option<i32>

pub fn as_i64(&self) -> Option<i64>

pub fn as_isize(&self) -> Option<isize>

pub fn as_f32(&self) -> Option<f32>

pub fn as_f64(&self) -> Option<f64>

pub fn as_cgfloat(&self) -> Option<CGFloat>

Available on crate feature CFCGTypes only.

Methods from Deref<Target = CFType>

pub fn downcast_ref<T: ConcreteType>(&self) -> Option<&T>

Attempt to downcast the type to that of type T.

This is the reference-variant. Use CFRetained::downcast if you want to convert a retained type. See also ConcreteType for more details on which types support being converted to.

pub fn retain_count(&self) -> usize

Get the reference count of the object.

This function may be useful for debugging. You normally do not use this function otherwise.

Beware that some things (like CFNumbers, small CFStrings etc.) may not have a normal retain count for optimization purposes, and can return usize::MAX in that case.

Trait Implementations

impl AsRef<AnyObject> for CFNumber

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CFNumber> for CFNumber

fn as_ref(&self) -> &Self

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CFType> for CFNumber

fn as_ref(&self) -> &CFType

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<AnyObject> for CFNumber

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<CFType> for CFNumber

fn borrow(&self) -> &CFType

Immutably borrows from an owned value.

impl ConcreteType for CFNumber

fn type_id() -> CFTypeID

Get the unique CFTypeID identifier for the type.

impl Debug for CFNumber

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

Formats the value using the given formatter.

impl Deref for CFNumber

type Target = CFType

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Hash for CFNumber

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 Message for CFNumber

fn retain(&self) -> Retained<Self>

where Self: Sized,

Increment the reference count of the receiver.

impl Ord for CFNumber

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

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

fn partial_cmp(&self, other: &Self) -> 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 RefEncode for CFNumber

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Type for CFNumber

fn retain(&self) -> CFRetained<Self>

where Self: Sized,

Increment the reference count of the receiver.

fn as_concrete_TypeRef(&self) -> &Self

👎Deprecated: this is redundant

Helper for easier transition from the core-foundation crate.

unsafe fn wrap_under_get_rule(ptr: *const Self) -> CFRetained<Self>

where Self: Sized,

👎Deprecated: use CFRetained::retain

Helper for easier transition from the core-foundation crate.

fn as_CFTypeRef(&self) -> &CFType

where Self: AsRef<CFType>,

👎Deprecated: this is redundant (CF types deref to CFType)

Helper for easier transition from the core-foundation crate.

unsafe fn wrap_under_create_rule(ptr: *const Self) -> CFRetained<Self>

where Self: Sized,

👎Deprecated: use CFRetained::from_raw

Helper for easier transition from the core-foundation crate.

impl Eq for CFNumber

impl Send for CFNumber

impl Sync for CFNumber