floor float rust

In Rust, you can use the floor function from the num_traits crate to round a floating-point number down to the nearest integer. To use this function, you first need to add the num-traits dependency to your Cargo.toml file:

[dependencies]
num-traits = "0.2"

Then, in your code, you can import the floor function and use it like this:

use num_traits::Float;

fn main() {
    let num = 3.7;
    let rounded_down = num.floor();
    println!("Rounded down: {}", rounded_down);
}

This will output:

Rounded down: 3

The floor function returns the largest integer less than or equal to the given number. It operates on any floating-point type that implements the Float trait from the num_traits crate.