LANGUAGE » RUST

Numbers

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Methods

Method	Description
`round`	Round to nearest whole number.
`floor`	Largest integer less than or equal to number.
`ceil`	Smallest integer greater than or equal to number.
`trunc`	Integer part without fractional digits.
`max`	Highest number.
`min`	Lowest number.

Example:

rust

let pi = 3.141592;
let round_pi = pi.round();

Between two floats a and b, return the highest or lowest:

rust

a.max(b) // f32::max(a, b)
a.min(b) // f32::min(a, b)

If updating a number in a function that received it as &mut:

rust

fn update_counter(&mut count) {
    *count += 1;
}