https://github.com/lifthrasiir/num-cmp

Comparison between differently typed numbers in Rust
https://github.com/lifthrasiir/num-cmp

rust

Last synced: 2 months ago
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Comparison between differently typed numbers in Rust

• Host: GitHub
• URL: https://github.com/lifthrasiir/num-cmp
• Owner: lifthrasiir
• License: other
• Created: 2017-03-02T12:26:26.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2020-02-03T19:03:17.000Z (almost 5 years ago)
• Last Synced: 2024-04-24T18:40:43.015Z (8 months ago)
• Topics: rust
• Language: Rust
• Homepage: https://docs.rs/num-cmp/
• Size: 16.6 KB
• Stars: 13
• Watchers: 1
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# num-cmp

The **[`NumCmp`](https://docs.rs/num-cmp/*/num_cmp/trait.NumCmp.html)** trait for comparison between differently typed numbers.

```rust

use std::f32;

use std::cmp::Ordering;

use num_cmp::NumCmp;

assert!(NumCmp::num_eq(3u64, 3.0f32));

assert!(NumCmp::num_lt(-4.7f64, -4i8));

assert!(!NumCmp::num_ge(-3i8, 1u16));

// 40_000_000 can be exactly represented in f32, 40_000_001 cannot

assert_eq!(NumCmp::num_cmp(40_000_000.0f32, 40_000_000u32), Some(Ordering::Equal));

assert_ne!(NumCmp::num_cmp(40_000_001.0f32, 40_000_001u32), Some(Ordering::Equal));

assert_eq!(NumCmp::num_cmp(f32::NAN,        40_000_002u32), None);

```

The `i128` Cargo feature can be enabled in nightly

to get support for `i128` and `u128` types as well,

which is being implemented in [Rust issue #35118][issue-35118].

[issue-35118]: https://github.com/rust-lang/rust/issues/35118