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