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bitcoin: Update feature docs 

The `bitcoin` crate documents its features in the crate level rustdocs,
currently they are stale.

Update and improve the feature docs section of crate level docs.
This commit is contained in:
Tobin C. Harding 2024-06-19 11:36:14 +10:00
parent 7712e5d891
commit c6c70a721e
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26
bitcoin/src/lib.rs
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@ -11,21 +11,21 @@
//!
//! See README.md for detailed documentation about development and supported environments.
//!
//! ## Available feature flags
//! # Cargo features
//!
//! * `std` - the usual dependency on `std` (default).
//! * `secp-recovery` - enables calculating public key from a signature and message.
//! * `base64` - (dependency), enables encoding of PSBTs and message signatures.
//! * `rand` - (dependency), makes it more convenient to generate random values.
//! * `serde` - (dependency), implements `serde`-based serialization and
//! deserialization.
//! * `base64` (dependency) - enables encoding of PSBTs and message signatures.
//! * `bitcoinconsensus` (dependency) - enables validating scripts and transactions.
//! * `bitcoinconsensus-std` - same as `bitcoinconsensus` but also enables `std` here and in the
//! `bitcoinconsensus` crate. Additionally, enables returning
//! `bitcoinconsensus::Error` from `std::error::Error::source()`.
//! * `default` - enables `std` and `secp-recovery`.
//! * `ordered` (dependency) - adds implementations of `ArbitraryOrd` to some structs.
//! * `rand` (transitive dependency) - makes it more convenient to generate random values.
//! * `rand-std` - same as `rand` but also enables `std` here and in `secp256k1`.
//! * `serde` (dependency) - implements `serde`-based serialization and deserialization.
//! * `secp-lowmemory` - optimizations for low-memory devices.
//! * `bitcoinconsensus-std` - enables `std` in `bitcoinconsensus` and communicates it
//! to this crate so it knows how to implement
//! `std::error::Error`. At this time there's a hack to
//! achieve the same without this feature but it could
//! happen the implementations diverge one day.
//! * `ordered` - (dependency), adds implementations of `ArbitraryOrdOrd` to some structs.
//! * `secp-recovery` - enables calculating public key from a signature and message.
//! * `std` - the usual dependency on `std`.
#![cfg_attr(all(not(feature = "std"), not(test)), no_std)]
// Experimental features we need.