Built-in way to cast a string that is a a binary number to an actual number in Rust?

Question

For instance:

let n = "1010";

let m: u32 = ?

It can be done by adding each digit multiplied by the right power of two but is there another, simpler, built-in way ?

E_net4 · Accepted Answer · 2018-12-08 15:05:22Z

7

You are looking for from_str_radix, available to all core integer types.

let n = "1010";
let m = u32::from_str_radix(n, 2)?;
assert_eq!(m, 10);

answered Dec 8, 2018 at 15:05

E_net4

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