bytesize 0.2.0

ByteSize is an utility that easily makes bytes size representation and helps its arithmetic operations.


Build Status

ByteSize is an utility that easily makes bytes size representation and helps its arithmetic operations.

API Documentation


Add this to your Cargo.toml:

bytesize = "0.2.0"

and this to your crate root:

extern crate bytesize;


Arithmetic operations

extern crate bytesize;

use bytesize::ByteSize;

fn byte_arithmetic_operator() {
  let x = ByteSize::mb(1);
  let y = ByteSize::kb(100);

  let plus = x + y;
  print!("{}", plus);

  let minus = ByteSize::tb(100) + ByteSize::gb(4);
  print!("{}", minus);

Human readable string

fn assert_display(expected: &str, b: ByteSize) {
  assert_eq!(expected, format!("{}", b));

  fn test_display() {
    assert_display("215 B", ByteSize::b(215));
    assert_display("1.0 KB", ByteSize::kb(1));
    assert_display("301.0 KB", ByteSize::kb(301));
    assert_display("419.0 MB", ByteSize::mb(419));
    assert_display("518.0 GB", ByteSize::gb(518));
    assert_display("815.0 TB", ByteSize::tb(815));
    assert_display("609.0 PB", ByteSize::pb(609));

  fn assert_to_string(expected: &str, b: ByteSize, si: bool) {
    assert_eq!(expected.to_string(), b.to_string(si));

  fn test_to_string() {
    assert_to_string("215 B", ByteSize::b(215), true);
    assert_to_string("215 B", ByteSize::b(215), false);

    assert_to_string("1.0 kiB", ByteSize::kib(1), true);
    assert_to_string("1.0 KB", ByteSize::kib(1), false);

    assert_to_string("293.9 kiB", ByteSize::kb(301), true);
    assert_to_string("301.0 KB", ByteSize::kb(301), false);

    assert_to_string("1.0 MiB", ByteSize::mib(1), true);
    assert_to_string("1048.6 KB", ByteSize::mib(1), false);

    assert_to_string("1.9 GiB", ByteSize::mib(1907), true);
    assert_to_string("2.0 GB", ByteSize::mib(1908), false);

    assert_to_string("399.6 MiB", ByteSize::mb(419), true);
    assert_to_string("419.0 MB", ByteSize::mb(419), false);

    assert_to_string("482.4 GiB", ByteSize::gb(518), true);
    assert_to_string("518.0 GB", ByteSize::gb(518), false);

    assert_to_string("741.2 TiB", ByteSize::tb(815), true);
    assert_to_string("815.0 TB", ByteSize::tb(815), false);

    assert_to_string("540.9 PiB", ByteSize::pb(609), true);
    assert_to_string("609.0 PB", ByteSize::pb(609), false);