mirror of
https://github.com/waku-org/nwaku.git
synced 2025-02-22 11:58:36 +00:00
41 lines
2.2 KiB
Markdown
41 lines
2.2 KiB
Markdown
# Stint (Stack-based multiprecision integers)
|
|
|
|
[](https://travis-ci.org/status-im/nim-stint)
|
|
[](https://ci.appveyor.com/project/nimbus/nim-stint)
|
|
[](https://opensource.org/licenses/Apache-2.0)
|
|
[](https://opensource.org/licenses/MIT)
|
|
|
|
|
|
|
|
A fast and portable stack-based multi-precision integer library in pure Nim
|
|
|
|
Main focus:
|
|
- Portability
|
|
- 32 and 64 bit arch
|
|
- ARM for usage on mobile phones
|
|
- Additionally RISC-V and MIPS for open hardware and low power IoT devices.
|
|
- Speed, library is carefully tuned to produce the best assembly given the current compilers.
|
|
However, the library itself does not resort to assembly for portability.
|
|
- No heap/dynamic allocation
|
|
- Ethereum applications
|
|
- Uint256/Int256 for Ethereum Virtual Machine usage.
|
|
- Uint2048 for Ethereum Bloom filters
|
|
- Ease of use:
|
|
- Use traditional `+`, `-`, `+=`, etc operators like on native types
|
|
- Representation of numbers in memory is the exact same as native types and endianness aware.
|
|
- In practice that means that interfacing with binary blobs representing numbers from cryptographic libraries can be done with a `cast` if it represents a Uint256, Uint512, Uint1024, Uint2048.
|
|
- converting to and from Hex
|
|
- converting to and from decimal strings
|
|
|
|
## License
|
|
|
|
Licensed and distributed under either of
|
|
|
|
* MIT license: [LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT
|
|
|
|
or
|
|
|
|
* Apache License, Version 2.0, ([LICENSE-APACHEv2](LICENSE-APACHEv2) or http://www.apache.org/licenses/LICENSE-2.0)
|
|
|
|
at your option. This file may not be copied, modified, or distributed except according to those terms.
|