bitflags/bitflags
A macro to generate structures which behave like bitflags observed · 2026-10-09
Health v2 · maintenance only
91/100
- Activity 95
- Release rhythm 82
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-22. Adoption (stars, forks) is never an input.
- gap_med: 45.0
- age_days: 4297
- days_rel: 42
- days_push: 33
- n_releases_24m: 15
Adoption not part of the score
1163 stars · 168 forks observed · 2026-10-09
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A Rust crate providing a macro to generate structures that behave like sets of bitflags with well-defined semantics and ergonomic APIs. It supports set operations like union, intersection, difference, and complement, plus optional serde and bytemuck integrations.
Use cases
- generate flags enums in Rust with ergonomic set operations
- wrap C API flags that may contain unknown bits
- create efficient options types with string parsing and formatting
- serialize and deserialize bitmask types with serde
- manage combinations of boolean options in a single integer
When to choose
- you need type-safe bitflag sets in Rust
- you are binding to C APIs with flag parameters
- you want efficient multi-option types with parsing support
When to avoid
- you need guaranteed-only-defined-bits enforcement
- you need C-style bitfields rather than flag sets
Facets
library · maturity stable
serialization developer-tools programming-languages rust bitflags bitmask macros flags-enum rust-crate
2 sources
- readme: https://github.com/bitflags/bitflags · fetched 2026-10-09 · 4fd0ec385222
- registry_crates: https://crates.io/api/v1/crates/bitflags · fetched 2026-08-29 · d76c2ae9445e
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| bitflags/bitflags | main | 91 |
For agents
markdown · JSON · MCP: product_card(name="bitflags/bitflags")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem