cmov
v0.5.3 GrowingConditional move CPU intrinsics which are guaranteed on major platforms (ARM32/ARM64, x86/x86_64, RISC-V) to execute in constant-time and not be rewritten as branches by the compiler. Provides wrappers for the CMOV family of instructions on x86/x86_64 and CSEL on AArch64, along with a portable "best-effort" pure Rust fallback implementation.
Quick Verdict
- ✓Actively maintained (updated 53d ago)
- !Pre-1.0: API may have breaking changes
- ✓Team maintained (2 owners)
- ✓Tiny footprint (27KB, 1 deps)
- ✓Permissive license (Apache-2.0 OR MIT)
Security
Deep Insights
6.6M downloads in the last 30 days (220.7K/day), up 149% from the previous period.
The primary maintainer publishes 216 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.
Despite being 4+ years old, cmov hasn't reached 1.0 yet. Expect potential API changes between versions.
Only 1 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.
At 26KB, cmov is lightweight. Small crate size correlates with focused, well-scoped functionality.
60% of releases have been yanked. Check version history before pinning.
Notable dependents include ctutils, kiddo, faest. When high-quality crates choose cmov, it's a strong quality signal.
Health Breakdown
Recency, release consistency, active ratio
Yanked ratio, deps, size, maturity, features
Reverse deps, ownership, ecosystem
Downloads, momentum, growth trend
Docs, repo, license, metadata
Download Trend
Top Dependents
Most downloaded crates that depend on cmov
