fmt-cmp

A Rust library for lexicographically comparing values in their Display representations.

The utilities provided by this library gives the same results as comparing values after applying to_string(), but they never allocate on the heap memory.

Examples

Compare digits of numbers:

rust assert!(fmt_cmp::eq(f64::NAN, f64::NAN)); // `"NaN" == "NaN"` assert!(fmt_cmp::cmp(&42, &240).is_gt()); // `"42" > "240"`

Sorting integers lexicographically:

```rust use std::collections::BTreeSet;

use fmt_cmp::Cmp as FmtCmp;

let mut values: BTreeSet> = (1..=10).map(FmtCmp).collect(); assert!(values .into_iter() .map(|cmp| cmp.0) .eq([1, 10, 2, 3, 4, 5, 6, 7, 8, 9])); ```

License

Copyright (c) 2021 Daiki "tesaguri" Mizukami

This project is licensed under either of:

• The Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0), or
• The MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)

at your option.