Big integer types for Rust,
Add this to your
[dependencies] num-bigint = "0.2"
and this to your crate root:
extern crate num_bigint;
std crate feature is mandatory and enabled by default. If you depend on
default-features = false, you must manually enable the
std feature yourself. In the future, we hope to support
#![no_std] with the
alloc crate when
std is not enabled.
u128 are only available with Rust 1.26 and later. The build script automatically detects this, but you can make it mandatory by enabling the
i128 crate feature.
Release notes are available in RELEASES.md.
num-bigint crate is tested for rustc 1.15 and greater.
num-bigint strives for good performance in pure Rust code, other crates may offer better performance with different trade-offs. The following table offers a brief comparison to a few alternatives.
|Apache-2.0||nightly||rust and inline assembly|
|LGPL-3.0+||1.18||bundles GMP via |
|MIT||stable?||links to GMP|
|MIT/Apache-2.0||1.26||pure rust (unfinished)|