Crate num_cmp [−] [src]
The NumCmp
trait for comparison between differently typed numbers.
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.
Traits
NumCmp |
A trait for comparison between differently typed numbers. |