Struct BigInt 

pub struct BigInt { /* private fields */ }

Available on crate feature alloc only.

A tagged bignum integer (CBOR tag 2 or 3).

SACP-CBOR/1 represents integers outside the safe range using CBOR tags 2 (positive) and 3 (negative), with a byte string magnitude encoded canonically (non-empty, no leading zeros).

Implementations

impl BigInt

pub fn new(negative: bool, magnitude: Vec<u8>) -> Result<Self, CborError>

Construct a BigInt from sign and big-endian magnitude bytes.

Errors

Returns an error if:

• the magnitude is empty or has a leading zero, or
• the represented integer would be within the safe integer range.

pub const fn is_negative(&self) -> bool

Sign flag: true if this represents a negative bignum (tag 3).

pub fn magnitude(&self) -> &[u8]

Return the canonical big-endian magnitude bytes.

Trait Implementations

impl<'de> CborDecode<'de> for BigInt

fn decode<const CHECKED: bool>( decoder: &mut Decoder<'de, CHECKED>, ) -> Result<Self, CborError>

Decode Self from a streaming decoder.

impl CborEncode for BigInt

fn encode(&self, enc: &mut Encoder) -> Result<(), CborError>

Encode self into the provided encoder.

impl Clone for BigInt

fn clone(&self) -> BigInt

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BigInt

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

Formats the value using the given formatter.

impl From<BigInt> for CborInteger

fn from(value: BigInt) -> Self

Converts to this type from the input type.

impl PartialEq for BigInt

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

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

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 CborArrayElem for BigInt

impl Eq for BigInt

impl StructuralPartialEq for BigInt