commit | e02ace59698cbafa239f08f804cd38e87c392efb | [log] [tgz] |
---|---|---|
author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Mon Mar 14 07:04:20 2022 +0000 |
committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Mon Mar 14 07:04:20 2022 +0000 |
tree | ec44dd90ddedf930b1d1122b8d8c5694d7d56374 | |
parent | 42b715fe2791ac73c920db34d40cd6c204eee1b6 [diff] | |
parent | c0bb8c1bd15da584cd39d80f295fc9dda3a84c53 [diff] |
Snap for 8294919 from c0bb8c1bd15da584cd39d80f295fc9dda3a84c53 to main-cg-testing-release Change-Id: I2043e675c13757014cd45d79a4132e61f92bf3b4
Big integer types for Rust, BigInt
and BigUint
.
Add this to your Cargo.toml
:
[dependencies] num-bigint = "0.4"
The std
crate feature is enabled by default, and is mandatory before Rust 1.36 and the stabilized alloc
crate. If you depend on num-bigint
with default-features = false
, you must manually enable the std
feature yourself if your compiler is not new enough.
num-bigint
supports the generation of random big integers when the rand
feature is enabled. To enable it include rand as
rand = "0.8" num-bigint = { version = "0.4", features = ["rand"] }
Note that you must use the version of rand
that num-bigint
is compatible with: 0.8
.
Release notes are available in RELEASES.md.
The num-bigint
crate is tested for rustc 1.31 and greater.
While 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.
Crate | License | Min rustc | Implementation |
---|---|---|---|
num-bigint | MIT/Apache-2.0 | 1.31 | pure rust |
ramp | Apache-2.0 | nightly | rust and inline assembly |
rug | LGPL-3.0+ | 1.37 | bundles GMP via gmp-mpfr-sys |
rust-gmp | MIT | stable? | links to GMP |
apint | MIT/Apache-2.0 | 1.26 | pure rust (unfinished) |
Licensed under either of
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.