float-derive
| Crates.io | float-derive |
| lib.rs | float-derive |
| version | 0.1.0 |
| created_at | 2022-10-29 16:43:24.062411+00 |
| updated_at | 2022-10-29 16:43:24.062411+00 |
| description | A crate that allows deriving Eq and Hash for types that contain floating points |
| homepage | https://github.com/projectkml/float-derive |
| repository | https://github.com/projectkml/float-derive |
| max_upload_size | |
| id | 701092 |
| size | 3,975 |
BeastLe9enD (BeastLe9enD)
documentation
https://docs.rs/float-derive
README
⚡ float-derive
A crate that allows deriving Eq and Hash for types that contain floats 🦀
[dependencies]
float-derive = "0.1.0"
IEEE 754 floating point numbers can have the value NAN (not a number). It is unequal to any float, including itself! This is the reason `f32` and `f64` doesn’t implement the `Eq` trait.
This crate allows to derive Eq and Hash for traits that contain floating points by explicitly comparing floating points such that: NAN == NAN is true.
How to use
use float_derive::{FloatPartialEq, FloatEq, FloatHash};
#[derive(FloatPartialEq, FloatEq, FloatHash)]
struct MyStruct {
a: i32,
b: i32,
my_float: f32,
my_second_float: f64
}
#[derive(FloatPartialEq, FloatEq, FloatHash)]
enum MyEnum {
A(i32, f32),
B { a: i32, b: f64 },
C
}
Credits
- ordered-float for offering explicit float equality.