Real

rama::crypto::dep::x509_parser::prelude::asn1_rs

Enum Real

pub enum Real {
    Binary {
        mantissa: f64,
        base: u32,
        exponent: i32,
        enc_base: u8,
    },
    Infinity,
    NegInfinity,
    Zero,
}

Available on crate feature crypto only.

Expand description

ASN.1 REAL type

§Limitations

When encoding binary values, only base 2 is supported

Variants§

Binary

Non-special values

Fields

§mantissa: f64

§base: u32

§exponent: i32

§enc_base: u8

Infinity

Infinity (∞).

NegInfinity

Negative infinity (−∞).

Zero

Zero

Implementations§

impl Real

pub fn new(f: f64) -> Real

Available on (crate features rustls or boring or acme) and crate feature rustls only.

Create a new REAL from the f64 value.

pub const fn with_enc_base(self, enc_base: u8) -> Real

Available on (crate features rustls or boring or acme) and crate feature rustls only.

pub const fn binary(mantissa: f64, base: u32, exponent: i32) -> Real

Available on (crate features rustls or boring or acme) and crate feature rustls only.

Create a new binary REAL

pub fn is_infinite(&self) -> bool

Available on (crate features rustls or boring or acme) and crate feature rustls only.

Returns true if this value is positive infinity or negative infinity, and false otherwise.

pub fn is_finite(&self) -> bool

Available on (crate features rustls or boring or acme) and crate feature rustls only.

Returns true if this number is not infinite.

pub fn f64(&self) -> f64

Available on (crate features rustls or boring or acme) and crate feature rustls only.

Returns the ‘f64’ value of this REAL.

Returned value is a float, and may be infinite.

pub fn f32(&self) -> f32

Available on (crate features rustls or boring or acme) and crate feature rustls only.

Returns the ‘f32’ value of this REAL.

This functions casts the result of Real::f64 to a f32, and loses precision.

Trait Implementations§

impl CheckDerConstraints for Real

fn check_constraints(any: &Any<'_>) -> Result<(), Error>

impl Debug for Real

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

Formats the value using the given formatter. Read more

impl From<Real> for f32

fn from(r: Real) -> f32

Converts to this type from the input type.

impl From<Real> for f64

fn from(r: Real) -> f64

Converts to this type from the input type.

impl From<f32> for Real

fn from(f: f32) -> Real

Converts to this type from the input type.

impl From<f64> for Real

fn from(f: f64) -> Real

Converts to this type from the input type.

impl PartialEq for Real

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

Tests for self and other values to be equal, and is used by ==.

1.0.0§

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 Tagged for Real

const TAG: Tag = Tag::RealType

impl ToDer for Real

Available on crate feature std only.

fn to_der_len(&self) -> Result<usize, Error>

Get the length of the object (including the header), when encoded

fn write_der_header( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

Attempt to write the DER header to this writer.

fn write_der_content( &self, writer: &mut dyn Write, ) -> Result<usize, SerializeError>

Attempt to write the DER content (all except header) to this writer.

fn to_der_vec(&self) -> Result<Vec<u8>, SerializeError>

Write the DER encoded representation to a newly allocated Vec<u8>.

fn to_der_vec_raw(&self) -> Result<Vec<u8>, SerializeError>

Similar to using to_vec, but uses provided values without changes. This can generate an invalid encoding for a DER object.

fn write_der(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

Attempt to write the DER encoded representation (header and content) into this writer. Read more

fn write_der_raw(&self, writer: &mut dyn Write) -> Result<usize, SerializeError>

Similar to using to_der, but uses provided values without changes. This can generate an invalid encoding for a DER object.

impl<'a, 'b> TryFrom<&'b Any<'a>> for Real

type Error = Error

The type returned in the event of a conversion error.

fn try_from(any: &'b Any<'a>) -> Result<Real, Error>

Performs the conversion.

impl<'a> TryFrom<Any<'a>> for Real

type Error = Error

The type returned in the event of a conversion error.

fn try_from(any: Any<'a>) -> Result<Real, Error>

Performs the conversion.

impl DerAutoDerive for Real

impl StructuralPartialEq for Real

Auto Trait Implementations§

impl Freeze for Real

impl RefUnwindSafe for Real

impl Send for Real

impl Sync for Real

impl Unpin for Real

impl UnwindSafe for Real

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> Choice for T
where T: Tagged,

fn can_decode(tag: Tag) -> bool

Is the provided Tag decodable as a variant of this CHOICE?

impl<T> DynTagged for T
where T: Tagged,

fn tag(&self) -> Tag

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<'a, T, E> FromBer<'a, E> for T
where T: TryFrom<Any<'a>, Error = E>, E: From<Error>,

fn from_ber(bytes: &'a [u8]) -> Result<(&'a [u8], T), Err<E>>

Attempt to parse input bytes into a BER object

impl<'a, T, E> FromDer<'a, E> for T
where T: TryFrom<Any<'a>, Error = E> + CheckDerConstraints + DerAutoDerive, E: From<Error> + Display + Debug,

fn from_der(bytes: &'a [u8]) -> Result<(&'a [u8], T), Err<E>>

Attempt to parse input bytes into a DER object (enforcing constraints)

impl<T> FutureExt for T

fn with_context(self, otel_cx: Context) -> WithContext<Self> ⓘ

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

fn with_current_context(self) -> WithContext<Self> ⓘ

Attaches the current Context to this type, returning a WithContext wrapper. Read more

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T> Pointable for T

const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> PolicyExt for T
where T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more

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

fn rama_from(value: T) -> U

impl<T, U, CrateMarker> RamaInto<U, CrateMarker> for T
where U: RamaFrom<T, CrateMarker>,

fn rama_into(self) -> U

impl<T, U> RamaTryFrom<T> for U
where U: TryFrom<T>,

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

fn rama_try_from(value: T) -> Result<U, <U as RamaTryFrom<T>>::Error>

impl<T, U, CrateMarker> RamaTryInto<U, CrateMarker> for T
where U: RamaTryFrom<T, CrateMarker>,

type Error = <U as RamaTryFrom<T, CrateMarker>>::Error

fn rama_try_into(self) -> Result<U, <U as RamaTryFrom<T, CrateMarker>>::Error>

impl<T> Same for T

type Output = T

Should always be Self

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more