Struct num_format::Buffer

pub struct Buffer { /* fields omitted */ }

A key type. Represents a stack-allocated buffer you can use to get a formatted &str without heap allocation.

Example

use num_format::{Buffer, Locale};

fn main() {
    // Create a stack-allocated buffer...
    let mut buf = Buffer::default();

    // Write "1,000,000" into the buffer...
    buf.write_formatted(&1000000, &Locale::en);

    // Get a view into the buffer as a &str...
    let s = buf.as_str();

    // Do what you want with the &str...
    assert_eq!("1,000,000", s);
}

Methods

impl Buffer

pub fn new() -> Buffer

Constructs a new, stack-allocated buffer.

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

Returns a &[u8] view into the buffer.

pub fn as_str(&self) -> &str

Returns a &str view into the buffer.

pub fn is_empty(&self) -> bool

Returns true if the buffer is empty; false otherwise.

pub fn len(&self) -> usize

Returns the length (in bytes) of the buffer.

pub fn write_formatted<F, N>(&mut self, n: &N, format: &F) -> usize where
    F: Format,
    N: ToFormattedStr, 

Writes the provided number into the buffer using the provided format.

Trait Implementations

impl Default for Buffer

fn default() -> Buffer

Same as the new method.

impl Clone for Buffer

fn clone(&self) -> Buffer

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Buffer

impl AsRef<str> for Buffer

fn as_ref(&self) -> &str

Performs the conversion.

impl Display for Buffer

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

Formats the value using the given formatter.

impl Debug for Buffer

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

Formats the value using the given formatter.

impl Deref for Buffer

type Target = str

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Borrow<str> for Buffer

fn borrow(&self) -> &str

Immutably borrows from an owned value.