Decision Workspace
size_hinter vs iter-merge vs charmap
Side-by-side comparison of Rust crates
57
size_hinter
experimentalv0.4.2
Iterator adaptors allowing overriding or specifying size_hint.
52
iter-merge
growingv1.0.0
A high-performance iterator merging library
48
charmap
growingv0.2.2
A library for one-to-(none/one/many) character mapping.
Core Metrics
| size_hinter | iter-merge | charmap | |
|---|---|---|---|
| Health Score | 57 | 52 | 48 |
| Total Downloads | 531 | 13.7K | 6.5K |
| 30d Downloads | 103 | 4.1K | 7 |
| Dependents | 6 | 0 | 0 |
| Releases | 9 | 5 | 5 |
| Last Updated | 29d ago | 155d ago | 1083d ago |
| Age | 3m | 6m | 2y 11m |
Health Breakdown
size_hinter
Maintenance
18
Quality
14
Community
7
Popularity
3
Documentation
15
iter-merge
Maintenance
11
Quality
18
Community
6
Popularity
5
Documentation
12
charmap
Maintenance
10
Quality
17
Community
6
Popularity
5
Documentation
10
Technical Details
| size_hinter | iter-merge | charmap | |
|---|---|---|---|
| Version | 0.4.2 | 1.0.0 | 0.2.2 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 3 | 4 | 4 |
| Crate Size | 24KB | 39KB | 9KB |
| Features | 0 | 2 | 5 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | 1.85.1 | 1.68 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •size_hinter leads with a health score of 57/100, but none of the options score above 80.
- •iter-merge has the most downloads (13.7K), suggesting wider adoption.
- •⚠ charmap has not been updated in over a year.
- •size_hinter, charmap are pre-1.0 — API may change.