"rust attempt to multiply with overflow" Code Answer's

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rust attempt to multiply with overflow

Flyhouse_Squarewheel on Apr 01, 2021

/*
For the value to be u8, all operands of the expression need to be u8 as well.
The expression 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 doesn’t fit into a u8
which is why the compiler complains.

It works if you write it like this:
*/

fn main() {
    let x: u8 = (2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 - 1) as u8;
    println!("{}", x);
}

/*
This way the 2s and the 1 will be 64 or 32 bit integers and
the final result is then converted into u8.

You can also just use a bigger type like i32 or i64.
*/

Source: users.rust-lang.org

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"rust attempt to multiply with overflow" Code Answer's