A crate for ~O(1) charwise indexing into a string, without normally using as much memory as a Vec<char>.
1000 "e"'s with 3 extra non ascii chars, shuffled:
| Implementation | Memory Use | Index 200th codepoint |
|---|---|---|
Vec<char> |
4,012B (+ 24B direct) | 0.6ns |
IndexedChars |
2,009B (+ 64B direct) | 4ns |
String |
1,006B (+ 24B direct) | 126ns |
(data collected using benches/char_index.rs)
This crate is fully no_std, however it does rely on alloc.
A std feature may be added at a later date, but it is currently unknown what that would include.
This crate is licensed under MPL-2.0, this is a weak copyleft license intended to keep any modifications to the core library open source, without affecting other requirements greatly. This is not legal advice.