commit | 7a3d2e99ed12fcf73310e0bc8a17cb3672f730d6 | [log] [tgz] |
---|---|---|
author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Thu Dec 16 00:04:06 2021 +0000 |
committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Thu Dec 16 00:04:06 2021 +0000 |
tree | 0545506bd7f7032e563d2653d92f3e19204249cd | |
parent | 5ce072760ac73307df636e553d45c8cd0c77523a [diff] | |
parent | c020b9e655285821e5a77fd37c48e3237dfdbe96 [diff] |
Snap for 8005954 from c020b9e655285821e5a77fd37c48e3237dfdbe96 to sdk-release Change-Id: If50c04b3bb32be7e964df114b4f17b8d5a02d1f7
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.