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FloatValue

Struct FloatValue 

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#[repr(C)]
pub struct FloatValue { pub number: isize, }
Expand description

Wrapper around an f32 value that is internally casted to an isize, in order to provide hash-ability (to avoid numerical instability).

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§number: isize

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impl FloatValue

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pub const fn const_new(value: isize) -> Self

Same as FloatValue::new(), but only accepts whole numbers, since using f32 in const fn is not yet stabilized.

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pub const fn const_new_fractional(pre_comma: isize, post_comma: isize) -> Self

Creates a FloatValue from a fractional number in const context.

This is needed because f32 operations are not allowed in const fn, but we still want to represent values like 1.5, 0.83, etc.

The function automatically detects the number of decimal places in post_comma and supports up to 3 decimal places. If more digits are provided, only the first 3 are used (truncation, not rounding).

§Arguments
  • pre_comma - The integer part (e.g., 1 for 1.5)
  • post_comma - The fractional part as digits (e.g., 5 for 0.5, 52 for 0.52, 523 for 0.523)
§Examples
// 1.5 = const_new_fractional(1, 5)
// 1.52 = const_new_fractional(1, 52)
// 1.523 = const_new_fractional(1, 523)
// 0.83 = const_new_fractional(0, 83)
// 1.17 = const_new_fractional(1, 17)
// 2.123456 -> 2.123 (truncated to 3 decimal places)
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pub fn new(value: f32) -> Self

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pub fn get(&self) -> f32

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pub fn interpolate(&self, other: &Self, t: f32) -> Self

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impl Clone for FloatValue

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fn clone(&self) -> FloatValue

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for FloatValue

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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 FloatValue

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fn default() -> Self

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

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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 From<f32> for FloatValue

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fn from(val: f32) -> Self

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

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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 Ord for FloatValue

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

This method returns an Ordering between self and other. Read more
1.21.0 · Source§

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

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for FloatValue

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fn eq(&self, other: &FloatValue) -> 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 FloatValue

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fn partial_cmp(&self, other: &FloatValue) -> 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 Copy for FloatValue

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impl Eq for FloatValue

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impl StructuralPartialEq for FloatValue

Auto Trait Implementations§

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> GetHash for T
where T: Hash,

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fn get_hash(&self) -> u64

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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.