Struct checked_float::CheckedFloat

pub struct CheckedFloat<T: Float, C: FloatChecker<T>>(_, _);

A checked floating point type.

Every instance of CheckedFloat is guaranteed to satisfy the property given by the provided FloatChecker. In particular, this can be used to have a floating point type that forbids values like NaN, infinity, negatives, etc. all by providing different checkers.

CheckedFloat supports all the typical operations of a normal float type. However, all operations that yield another float type (e.g., add, sub, sin, etc.) instead yield a custom Result type specified by the FloatChecker.

All methods from the Float type are supported by this wrapper in checked context. For documentation, see the original method definitions in Float.

CheckedFloat also supports an implementation of Ord, which allows for directly sorting CheckedFloat collections. The convention for this implementation has ordering -NaN < -Inf < ... < -0 = +0 < ... < +Inf < +NaN.

CheckedFloat::get can be used to get the underlying float value.

Implementations

impl<T: Float, C: FloatChecker<T>> CheckedFloat<T, C>

pub fn new(value: T) -> Result<Self, C::Error>

pub fn get(self) -> T

pub fn classify(self) -> FpCategory

pub fn integer_decode(self) -> (u64, i16, i8)

pub fn is_finite(self) -> bool

pub fn is_infinite(self) -> bool

pub fn is_nan(self) -> bool

pub fn is_normal(self) -> bool

pub fn is_sign_negative(self) -> bool

pub fn is_sign_positive(self) -> bool

pub fn is_zero(self) -> bool

pub fn is_one(self) -> bool

pub fn infinity() -> Result<Self, C::Error>

pub fn max_value() -> Result<Self, C::Error>

pub fn min_positive_value() -> Result<Self, C::Error>

pub fn min_value() -> Result<Self, C::Error>

pub fn nan() -> Result<Self, C::Error>

pub fn neg_infinity() -> Result<Self, C::Error>

pub fn neg_zero() -> Result<Self, C::Error>

pub fn zero() -> Result<Self, C::Error>

pub fn one() -> Result<Self, C::Error>

pub fn epsilon() -> Result<Self, C::Error>

pub fn abs(self) -> Result<Self, C::Error>

pub fn acos(self) -> Result<Self, C::Error>

pub fn acosh(self) -> Result<Self, C::Error>

pub fn asin(self) -> Result<Self, C::Error>

pub fn asinh(self) -> Result<Self, C::Error>

pub fn atan(self) -> Result<Self, C::Error>

pub fn atanh(self) -> Result<Self, C::Error>

pub fn cbrt(self) -> Result<Self, C::Error>

pub fn ceil(self) -> Result<Self, C::Error>

pub fn cos(self) -> Result<Self, C::Error>

pub fn cosh(self) -> Result<Self, C::Error>

pub fn exp(self) -> Result<Self, C::Error>

pub fn exp2(self) -> Result<Self, C::Error>

pub fn exp_m1(self) -> Result<Self, C::Error>

pub fn floor(self) -> Result<Self, C::Error>

pub fn fract(self) -> Result<Self, C::Error>

pub fn ln(self) -> Result<Self, C::Error>

pub fn ln_1p(self) -> Result<Self, C::Error>

pub fn log10(self) -> Result<Self, C::Error>

pub fn log2(self) -> Result<Self, C::Error>

pub fn neg(self) -> Result<Self, C::Error>

pub fn recip(self) -> Result<Self, C::Error>

pub fn round(self) -> Result<Self, C::Error>

pub fn signum(self) -> Result<Self, C::Error>

pub fn sin(self) -> Result<Self, C::Error>

pub fn sinh(self) -> Result<Self, C::Error>

pub fn sqrt(self) -> Result<Self, C::Error>

pub fn tan(self) -> Result<Self, C::Error>

pub fn tanh(self) -> Result<Self, C::Error>

pub fn trunc(self) -> Result<Self, C::Error>

pub fn to_degrees(self) -> Result<Self, C::Error>

pub fn to_radians(self) -> Result<Self, C::Error>

pub fn abs_sub(self, other: Self) -> Result<Self, C::Error>

pub fn add(self, other: Self) -> Result<Self, C::Error>

pub fn atan2(self, other: Self) -> Result<Self, C::Error>

pub fn div(self, other: Self) -> Result<Self, C::Error>

pub fn hypot(self, other: Self) -> Result<Self, C::Error>

pub fn log(self, base: Self) -> Result<Self, C::Error>

pub fn mul(self, other: Self) -> Result<Self, C::Error>

pub fn powf(self, n: Self) -> Result<Self, C::Error>

pub fn rem(self, other: Self) -> Result<Self, C::Error>

pub fn sub(self, other: Self) -> Result<Self, C::Error>

pub fn copysign(self, sign: Self) -> Result<Self, C::Error>

pub fn mul_add(self, a: Self, b: Self) -> Result<Self, C::Error>

pub fn powi(self, n: i32) -> Result<Self, C::Error>

pub fn sin_cos(self) -> (Result<Self, C::Error>, Result<Self, C::Error>)

Trait Implementations

impl<T: Float, C: FloatChecker<T>> Clone for CheckedFloat<T, C>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Float + Debug, C: FloatChecker<T>> Debug for CheckedFloat<T, C>

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

Formats the value using the given formatter.

impl<T: Float + Display, C: FloatChecker<T>> Display for CheckedFloat<T, C>

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

Formats the value using the given formatter.

impl<T: Float, C: FloatChecker<T>> Ord for CheckedFloat<T, C>

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl<T: Float, C: FloatChecker<T>> PartialEq<CheckedFloat<T, C>> for CheckedFloat<T, C>

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

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

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

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

impl<T: Float, C: FloatChecker<T>> PartialOrd<CheckedFloat<T, C>> for CheckedFloat<T, C>

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

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

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

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

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

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

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<T: Float, C: FloatChecker<T>> Copy for CheckedFloat<T, C>

impl<T: Float, C: FloatChecker<T>> Eq for CheckedFloat<T, C>