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itoa (1.0.18)

Published 2026-03-26 10:59:38 +00:00 by siennathesane

Installation

Set up this registry in the Cargo configuration file (for example ~/.cargo/config.toml):

[registry]
default = "gitea"

[registries.gitea]
index = "sparse+" # Sparse index
# index = "" # Git

[net]
git-fetch-with-cli = true

To install the package using Cargo, run the following command:

cargo add itoa@1.0.18

For more information on the Cargo registry, see the documentation.

About this package

Fast integer primitive to string conversion

itoa

This crate provides a fast conversion of integer primitives to decimal strings. The implementation comes straight from libcore but avoids the performance penalty of going through core::fmt::Formatter.

See also zmij for printing floating point primitives.

[dependencies]
itoa = "1.0"

Example

fn main() {
    let mut buffer = itoa::Buffer::new();
    let printed = buffer.format(128u64);
    assert_eq!(printed, "128");
}

Performance

The itoa-benchmark compares this library and other Rust integer formatting implementations across a range of integer sizes. The vertical axis in this chart shows nanoseconds taken by a single execution of itoa::Buffer::new().format(value) so a lower result indicates a faster library.

License

^{Licensed under either of Apache License, Version 2.0 or MIT license at your option.}
_{Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.}

Dependencies

ID	Version
no-panic	^0.1
criterion	^0.8

Keywords

integer

Details

Cargo

2026-03-26 10:59:38 +00:00

0

David Tolnay <dtolnay@gmail.com>

Repository Site

Documentation Site

MIT OR Apache-2.0

15 KiB

Assets (1)

itoa-1.0.18.crate 15 KiB

Versions (1) View all

1.0.18 2026-03-26