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Half

Struct Half 

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pub struct Half { /* private fields */ }
Expand description

IEEE 754 half-precision floating-point (binary16)

Layout: 1 sign bit, 5 exponent bits, 10 mantissa bits. Range: ±65504, smallest normal: 6.1×10⁻⁵, precision: ~3 decimal digits.

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impl Half

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pub const ZERO: Self

Zero constant

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pub const ONE: Self

One constant

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pub const NEG_ONE: Self

Negative one

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pub const INFINITY: Self

Positive infinity

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pub const NEG_INFINITY: Self

Negative infinity

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pub const NAN: Self

Not a number (NaN)

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pub const MAX: Self

Maximum finite value (65504)

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pub const MIN_POSITIVE: Self

Minimum positive normal value

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pub const EPSILON: Self

Machine epsilon (2⁻¹⁰ ≈ 9.77×10⁻⁴)

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pub const fn from_bits(bits: u16) -> Self

Create from raw bits

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pub const fn to_bits(self) -> u16

Get the raw bits

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pub fn from_f32(value: f32) -> Self

Convert from f32 to half-precision

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pub fn to_f32(self) -> f32

Convert to f32

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pub fn from_f64(value: f64) -> Self

Convert from f64 to half-precision

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pub fn to_f64(self) -> f64

Convert to f64

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pub fn is_nan(self) -> bool

Check if NaN

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pub fn is_infinite(self) -> bool

Check if infinite

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pub fn is_finite(self) -> bool

Check if finite

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pub fn is_normal(self) -> bool

Check if normal (not zero, denormal, infinity, or NaN)

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pub fn is_zero(self) -> bool

Check if zero (positive or negative)

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pub fn is_sign_negative(self) -> bool

Check if sign bit is set

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pub fn abs(self) -> Self

Absolute value

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pub fn fma(a: Self, b: Self, c: Self) -> Self

Fused multiply-add: a * b + c

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pub fn sqrt(self) -> Self

Square root

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pub fn recip(self) -> Self

Reciprocal (1/x)

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

Minimum of two values

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

Maximum of two values

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

Clamp between min and max

Trait Implementations§

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impl Add for Half

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type Output = Half

The resulting type after applying the + operator.
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fn add(self, rhs: Self) -> Self

Performs the + operation. Read more
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impl Clone for Half

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fn clone(&self) -> Half

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for Half

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impl Debug for Half

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

Formats the value using the given formatter. Read more
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impl Default for Half

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Display for Half

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

Formats the value using the given formatter. Read more
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impl Div for Half

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type Output = Half

The resulting type after applying the / operator.
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fn div(self, rhs: Self) -> Self

Performs the / operation. Read more
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impl Eq for Half

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impl From<Half> for f32

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fn from(v: Half) -> Self

Converts to this type from the input type.
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impl From<Half> for f64

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fn from(v: Half) -> Self

Converts to this type from the input type.
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impl From<f32> for Half

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fn from(v: f32) -> Self

Converts to this type from the input type.
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impl From<f64> for Half

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fn from(v: f64) -> Self

Converts to this type from the input type.
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impl Hash for Half

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Mul for Half

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type Output = Half

The resulting type after applying the * operator.
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fn mul(self, rhs: Self) -> Self

Performs the * operation. Read more
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impl Neg for Half

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type Output = Half

The resulting type after applying the - operator.
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fn neg(self) -> Self

Performs the unary - operation. Read more
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impl PartialEq for Half

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

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

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impl Sub for Half

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type Output = Half

The resulting type after applying the - operator.
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fn sub(self, rhs: Self) -> Self

Performs the - operation. Read more

Auto Trait Implementations§

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impl Freeze for Half

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impl RefUnwindSafe for Half

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impl Send for Half

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impl Sync for Half

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impl Unpin for Half

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impl UnsafeUnpin for Half

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impl UnwindSafe for Half

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> Upcast<T> for T

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fn upcast(&self) -> Option<&T>

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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WasmNotSend for T
where T: Send,

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impl<T> WasmNotSendSync for T

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impl<T> WasmNotSync for T
where T: Sync,