4 releases
new 0.2.2 | May 15, 2024 |
---|---|
0.2.1 | May 14, 2024 |
0.2.0 | May 14, 2024 |
0.1.0 | Sep 2, 2023 |
#256 in Math
21 downloads per month
185KB
5K
SLoC
twibint
Rust crate for arbitrarily big integers, signed or unsigned.
The main API of this crate is to export 2 types: BigUint and BigInt,
meant to represent unsigned or signed integers of arbitrarily large
absolute value. They are meant to be used in almost any way a regular
integer can be used. The only caveat is that they don't implement the
Copy trait ; this means that calling A + B
for example will perform
a move
operation on A
and B
, losing ownership of them. Most of the
time you will actually want to call &A + &B
, performing the operation
"by reference".
Build, documentation, benchmarks and tests are available the usual way calling the following:
cargo build
cargo docs
cargo bench
cargo test
For benchmarks specifically, you might want to call only some of these:
cargo bench mul
cargo bench add
cargo bench sub
Install as a Python package
Simply use from the base directory
python3 -m pip install .
or from the PyPi repository
pip install twibint
Python tests are available to be run in the pytest
framework. They are located
in the tests
folder and should provide ample example usage.
Changelog for version 0.2
This new version contains extensive accelerations for addition, subtraction, and multiplication on x86_64 machines. These will probably also have performance repercussions on many other features.
These acceleration are mostly due to dropping inline assembly for core loops, and are
based on unsafe
Rust. Other unsafe
features used include smartly swapping between
&[u32]
and &[u64]
slices via pointers.
Dependencies
~0.2–6MB
~16K SLoC