Struct der::asn1::IntRef

pub struct IntRef<'a> { /* private fields */ }

Signed arbitrary precision ASN.1 INTEGER reference type.

Provides direct access to the underlying big endian bytes which comprise an signed integer value.

Intended for use cases like very large integers that are used in cryptographic applications (e.g. keys, signatures).

Implementations

impl<'a> IntRef<'a>

pub fn new(bytes: &'a [u8]) -> Result<Self>

Create a new IntRef from a byte slice.

pub fn as_bytes(&self) -> &'a [u8]

Borrow the inner byte slice which contains the least significant bytes of a big endian integer value with all leading ones stripped.

pub fn len(&self) -> Length

Get the length of this IntRef in bytes.

pub fn is_empty(&self) -> bool

Is the inner byte slice empty?

Trait Implementations

impl<'a> Clone for IntRef<'a>

fn clone(&self) -> IntRef<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for IntRef<'a>

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

Formats the value using the given formatter.

impl<'a> DecodeValue<'a> for IntRef<'a>

fn decode_value<R: Reader<'a>>(reader: &mut R, header: Header) -> Result<Self>

Attempt to decode this message using the provided Reader.

impl<'a> EncodeValue for IntRef<'a>

fn value_len(&self) -> Result<Length>

Compute the length of this value (sans Tag+Length header) when encoded as ASN.1 DER.

fn encode_value(&self, writer: &mut impl Writer) -> Result<()>

Encode value (sans Tag+Length header) as ASN.1 DER using the provided Writer.

fn header(&self) -> Result<Header>

where Self: Tagged,

Get the Header used to encode this value.

impl<'a> FixedTag for IntRef<'a>

const TAG: Tag = Tag::Integer

ASN.1 tag

impl<'a> From<&IntRef<'a>> for Int

Available on crate feature alloc only.

fn from(value: &IntRef<'a>) -> Int

Converts to this type from the input type.

impl<'a> From<&IntRef<'a>> for IntRef<'a>

fn from(value: &IntRef<'a>) -> IntRef<'a>

Converts to this type from the input type.

impl<'a> Ord for IntRef<'a>

fn cmp(&self, other: &IntRef<'a>) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl<'a> PartialEq for IntRef<'a>

fn eq(&self, other: &IntRef<'a>) -> 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<'a> PartialOrd for IntRef<'a>

fn partial_cmp(&self, other: &IntRef<'a>) -> 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<'a> RefToOwned<'a> for IntRef<'a>

Available on crate feature alloc only.

type Owned = Int

The resulting type after obtaining ownership.

fn ref_to_owned(&self) -> Self::Owned

Creates a new object taking ownership of the data

impl<'__der: 'a, 'a> TryFrom<&'__der Any> for IntRef<'a>

Available on crate feature alloc only.

type Error = Error

The type returned in the event of a conversion error.

fn try_from(any: &'__der Any) -> Result<IntRef<'a>>

Performs the conversion.

impl<'__der: 'a, 'a> TryFrom<AnyRef<'__der>> for IntRef<'a>

type Error = Error

The type returned in the event of a conversion error.

fn try_from(any: AnyRef<'__der>) -> Result<IntRef<'a>>

Performs the conversion.

impl<'a> Copy for IntRef<'a>

impl<'a> Eq for IntRef<'a>

impl<'a> StructuralPartialEq for IntRef<'a>