Question

How to convert a number in a string to an array of int digits in Rust

Answer 1

fn string_to_int_array_of_digits(snumber: &str) -> Vec<i32> {
    let mut digits = Vec::with_capacity(snumber.len());
    
    for c in snumber.chars() {
        if let Some(digit) = c.to_digit(10) {
            digits.push(digit as i32);
        }
    }
    
    digits
}

fn main() {
    let snumber = "23089";
    
    let digits = string_to_int_array_of_digits(snumber);
    
    for digit in digits {
        print!("{} ", digit);
    }
}


  
/*
run:

2 3 0 8 9 

*/

 

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