Struct Mark 

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

A saved top of a Scratch arena, to return to with Scratch::reset. Marks compare equal when they save the same top.

Examples

use implicit_predicates_core::Scratch;

let mut buf = [0.0; 4];
let mut scratch = Scratch::borrowed(&mut buf);
let mark = scratch.mark();
scratch.push(&[1.0])?;
assert_ne!(scratch.mark(), mark);
scratch.reset(mark);
assert_eq!(scratch.mark(), mark);
assert_eq!(scratch.used(), 0);

Trait Implementations

impl Clone for Mark

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Mark

impl Debug for Mark

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

Formats the value using the given formatter.

impl Eq for Mark

impl PartialEq for Mark

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Mark