a013700527
In the past we've been using `chunks_exact` because const generics were
unstable but then, when they were stabilized we didn't use `as_chunks`
(or `array_chunks`) since they were unstable. But the instability was
only because Rust devs don't know how to handle `0` being passed in. The
function is perfectly implementable on stable. (With a tiny,
easy-to-understand `unsafe` block.) `core` doesn't want to make a
decision for all other crates yet but we can make it for our own crates
because we know that we simply never pass zero. (And even if we did, we
could just change the decision.)
It also turns out there's a hack to simulate `const {}` block in our
MSRV, so we can make compilation fail early.
This commit adds an extension trait to internals to provide the methods,
so we no longer have to use `chunks_exact`. It also cleans up the code
quite nicely.
|
||
|---|---|---|
| .. | ||
| contrib | ||
| embedded | ||
| src | ||
| tests | ||
| CHANGELOG.md | ||
| Cargo.toml | ||
| README.md | ||
README.md
Bitcoin Hashes Library
This is a simple, no-dependency library which implements the hash functions needed by Bitcoin. These are SHA1, SHA256, SHA256d, SHA512, and RIPEMD160. As an ancillary thing, it exposes hexadecimal serialization and deserialization, since these are needed to display hashes anyway.
Minimum Supported Rust Version (MSRV)
This library should always compile with any combination of features on Rust 1.63.0.
Contributions
Contributions are welcome, including additional hash function implementations.
Githooks
To assist devs in catching errors before running CI we provide some githooks. If you do not already have locally configured githooks you can use the ones in this repository by running, in the root directory of the repository:
git config --local core.hooksPath githooks/
Alternatively add symlinks in your .git/hooks directory to any of the githooks we provide.
Running Benchmarks
We use a custom Rust compiler configuration conditional to guard the benchmark code. To run the
benchmarks use: RUSTFLAGS='--cfg=bench' cargo +nightly bench.