thealgorithms/c-plus-plus vs z3prover/z3
Both showing Healthy signals — pick on fit, not health
As of June 2026, c-plus-plus and z3 both show healthy maintenance signals. c-plus-plus last saw a commit 8 months ago with 34+ active contributors, while z3 last saw a commit 1 month ago with 9+ active contributors. c-plus-plus is MIT-licensed while z3 is Other-licensed. Neither has known critical or high-severity CVEs in its dependency tree.
Informational only. RepoPilot summarises public signals at the time of analysis. Not professional, security, or legal advice.
thealgorithms/c-plus-plus →
Healthy across all four use cases
Permissive license, no critical CVEs, actively maintained — safe to depend on.
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
No critical CVEs, sane security posture — runnable as-is.
- ⚠Slowing — last commit 7mo ago
- ✓Last commit 7mo ago
- ✓34+ active contributors
- ✓Distributed ownership (top contributor 29% of recent commits)
- ✓MIT licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
z3prover/z3 →
Healthy across the board
non-standard license (Other)
Has a license, tests, and CI — clean foundation to fork and modify.
Documented and popular — useful reference codebase to read through.
No critical CVEs, sane security posture — runnable as-is.
- ⚠Non-standard license (Other) — review terms
- ✓Last commit 1d ago
- ✓9 active contributors
- ✓Distributed ownership (top contributor 28% of recent commits)
- ✓Other licensed
- ✓CI configured
- ✓Tests present
What would improve this?
- →Use as dependency Concerns → Mixed if: clarify license terms
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests
Signal-by-signal breakdown
| c-plus-plus | z3 | |
|---|---|---|
| Stars | 34,206 | 12,230 |
| Last commit | 8mo ago | 1mo ago |
| License | MIT | Other |
| Open issues | 33 | 166 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 1% | 5% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Healthy signals | Healthy signals |
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