This crate provides a numerically ordered wrapper type, NumOrd
. This
type implements the PartialOrd
and PartialEq
traits for all the
possible combinations of built-in integer types, in a mathematically correct
manner without overflows. Please refer to the
the documentation for more information.
To start using num-ord
add the following to your Cargo.toml
:
toml
[dependencies]
num-ord = "0.1"
```rust use num_ord::NumOrd;
let x = 3i64; let y = 3.5f64; asserteq!(x < (y as i64), false); // Incorrect. asserteq!(NumOrd(x) < NumOrd(y), true); // Correct.
let x = 9007199254740993i64; let y = 9007199254740992f64; asserteq!(format!("{}", y), "9007199254740992"); // No rounded constant trickery! asserteq!((x as f64) <= y, true); // Incorrect. assert_eq!(NumOrd(x) <= NumOrd(y), false); // Correct. ```
num-ord
is released under the Zlib license, a permissive license. It is
OSI and FSF approved and GPL compatible.