/rust-substring

Primary LanguageRust

Effective substring in Rust

View code substring.rs

View blog Effective substring in Rust

Get Started

Run benchmark

cargo bench

Run tests

cargo test

Benchmark Results

substring(1, 20) on Hello✨, 🎈 this 🎉 is a text.:

skip take and collect      time:   [313.51 ns 315.61 ns 318.00 ns]
manual byte indices        time:   [43.970 ns 44.178 ns 44.407 ns]
2 char_indices()           time:   [30.878 ns 31.016 ns 31.160 ns]
1 char_indices()           time:   [31.925 ns 32.055 ns 32.189 ns]
left-right char skipping   time:   [30.525 ns 30.667 ns 30.817 ns]

substring(1, 20000) on "Hello✨, 🎈 this 🎉 is a text.".repeat(1000):

skip take and collect      time:   [50.435 µs 50.770 µs 51.132 µs]
manual byte indices        time:   [29.578 µs 29.742 µs 29.923 µs]
2 char_indices()           time:   [16.551 µs 16.659 µs 16.780 µs]
1 char_indices()           time:   [16.583 µs 16.664 µs 16.751 µs]
left-right char skipping   time:   [14.096 µs 14.338 µs 14.584 µs]