Struct DiscardableFlag 

pub struct DiscardableFlag(/* private fields */);

1-bit discardable flag + 7 reserved bits packed into a u8.

The discardable flag indicates whether an option can be safely ignored by receivers that don’t understand it. The remaining 7 bits are reserved and should be set to 0.

Implementations

impl DiscardableFlag

pub fn new() -> Self

Create a new DiscardableFlag with all bits set to 0.

Returns

A DiscardableFlag with discardable=false and reserved=0

pub fn from_bool(discardable: bool) -> Self

Create a DiscardableFlag from a boolean value.

Parameters

• discardable - True to set the discardable bit, false to clear it

Returns

A DiscardableFlag with the specified discardable bit and reserved=0

pub fn is_discardable(&self) -> bool

Check if the discardable bit is set.

Returns

True if the option can be discarded, false otherwise

pub fn set_discardable(&mut self, discardable: bool)

Set or clear the discardable bit.

Parameters

• discardable - True to set the bit, false to clear it

pub fn reserved(&self) -> u8

Get the 7-bit reserved field value.

Returns

The lower 7 bits (should be 0 in well-formed packets)

pub fn as_u8(&self) -> u8

Convert to the u8 wire format representation.

Returns

The packed byte with discardable bit (MSB) and reserved bits

pub fn from_u8(value: u8) -> Self

Create a DiscardableFlag from a u8 value.

Parameters

• value - The byte value (bit 7 = discardable, bits 6-0 = reserved)

Returns

A DiscardableFlag with the specified bit pattern

Trait Implementations

impl Clone for DiscardableFlag

fn clone(&self) -> DiscardableFlag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DiscardableFlag

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

Formats the value using the given formatter.

impl PartialEq for DiscardableFlag

fn eq(&self, other: &DiscardableFlag) -> 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 Copy for DiscardableFlag

impl Eq for DiscardableFlag

impl StructuralPartialEq for DiscardableFlag