Struct CompactSize

pub struct CompactSize;

Namespace for functions for compact encoding of integers.

This codec requires integers to be in the range 0x0..=0x02000000, for compatibility with Zcash consensus rules.

Implementations

impl CompactSize

pub fn read<R: Read>(reader: R) -> Result<u64>

Reads an integer encoded in compact form.

pub fn read_t<R: Read, T: TryFrom<u64>>(reader: R) -> Result<T>

Reads an integer encoded in contact form and performs checked conversion to the target type.

pub fn write<W: Write>(writer: W, size: usize) -> Result<()>

Writes the provided usize value to the provided Writer in compact form.

pub fn serialized_size(size: usize) -> usize

Returns the number of bytes needed to encode the given size in compact form.