Decision Workspace
rpn-c vs squiid-engine vs postfix
Side-by-side comparison of Rust crates
34
rpn-c
growingv0.2.3
A calculator environment using Reverse Polish Notation and multiple precision numbers
45
squiid-engine
growingv2.2.2
Squiid Engine is an RPN mathematical engine written in Rust
43
postfix
growingv0.1.2
Postfix expression evaluator
Core Metrics
| rpn-c | squiid-engine | postfix | |
|---|---|---|---|
| Health Score | 34 | 45 | 43 |
| Total Downloads | 10.3K | 1.9K | 5.6K |
| 30d Downloads | 12 | 6 | 7 |
| Dependents | 0 | 0 | 0 |
| Releases | 8 | 3 | 4 |
| Last Updated | 1178d ago | 381d ago | 2375d ago |
| Age | 5y | 1y | 6y 6m |
Health Breakdown
rpn-c
Maintenance
4
Quality
13
Community
3
Popularity
5
Documentation
9
squiid-engine
Maintenance
6
Quality
20
Community
5
Popularity
4
Documentation
10
postfix
Maintenance
9
Quality
16
Community
5
Popularity
4
Documentation
9
Technical Details
| rpn-c | squiid-engine | postfix | |
|---|---|---|---|
| Version | 0.2.3 | 2.2.2 | 0.1.2 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | GPL-3.0 | MIT |
| Dependencies | 8 | 7 | 0 |
| Crate Size | 28KB | 47KB | 2KB |
| Features | 0 | 3 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2024 | 2018 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •squiid-engine leads with a health score of 45/100, but none of the options score above 80.
- •rpn-c has the most downloads (10.3K), suggesting wider adoption.
- •⚠ rpn-c, squiid-engine, postfix have not been updated in over a year.
- •rpn-c, postfix are pre-1.0 — API may change.