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rust-bitcoin-unsafe-fast/primitives
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merge-script bc93498b3e
Merge rust-bitcoin/rust-bitcoin#4485: Add `Builder::with_capacity()` 
d003d48592 Add `Builder::with_capacity()` (Daniel Roberts)
e492f94289 Update `ScriptBuf::with_capacity` docs (Daniel Roberts)

Pull request description:

  Enable the creation of `bitcoin::script::Builder` with a preallocated capacity.

  This is pretty minor, but it provides a small speedup if used correctly. I've observed a 0.4% speedup and a 0.7% speedup in two code bases that create lots of outputs (on the order of tens to hundreds of thousands). It provided a much larger speedup (5% or so) in the latter code base before some other optimizations dwarfed it.

  I have a branch that also uses it for `ScriptBufExt::new_*()` but while it provides a small performance improvement for all script types except one, `ScriptBufExt::new_p2tr()` actually causes a small performance regression. Since the only use case I have for creating lots and lots of scripts is in taproot with CHECKTEMPLATEVERIFY, I'm holding back that change if/until I figure out what's going on exactly (and hopefully resolve it).

ACKs for top commit:
  tcharding:
    ACK d003d48592
  apoelstra:
    ACK d003d4859251abb01929ccab6009a02e0c96b0cd; successfully ran local tests

Tree-SHA512: 51137574ca3d9dc5c319df124f470abd0f82413c093a5636af0439eb0fc2ad01dcf83df366a02279fc7d28feed24aa8c7db33b3c474d8bde7a9b6636343f8e9a
 		2025-05-13 17:16:54 +00:00
..
contrib Remove rust-ordered dependency 2025-02-18 13:36:07 +11:00
src Merge rust-bitcoin/rust-bitcoin#4485: Add `Builder::with_capacity()` 2025-05-13 17:16:54 +00:00
tests primitives: Add an API test module 2025-05-09 09:10:19 +10:00
CHANGELOG.md Bump version of bitcoin-primitives to 0.101.0 2024-11-15 10:58:46 +11:00
Cargo.toml Implement Display for block::Header 2025-04-16 17:24:41 +10:00
README.md docs: fix LICENCE link 2025-03-23 11:41:07 +00:00

README.md

Rust Bitcoin - primitive types.

This crate provides primitive data types that are used throughout the rust-bitcoin ecosystem.

Semver compliance

Functions marked as unstable (e.g. foo__unstable) are not guaranteed to uphold semver compliance. They are primarily provided to support rust-bitcoin.

Minimum Supported Rust Version (MSRV)

This library should always compile with any combination of features on Rust 1.63.0.

Licensing

The code in this project is licensed under the Creative Commons CC0 1.0 Universal license. We use the SPDX license list and SPDX IDs.