pub fn remove_leading_zeroes(list: &[u8]) -> Vec<u8> {
if let Some(first_non_zero) = list.iter().position(|&x| x != 0) {
list[first_non_zero..].to_vec()
} else {
Vec::new()
}
}
#[cfg(feature = "multithreaded")]
pub trait Threading: Sync + Send {}
#[cfg(not(feature = "multithreaded"))]
pub trait Threading {}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_remove_leading_zeroes() {
let data = &[0, 0, 0, 1, 2, 3, 0, 4];
let result = remove_leading_zeroes(data);
assert_eq!(result, vec![1, 2, 3, 0, 4]);
let data = &[1, 0, 0, 1, 2, 3, 0, 4];
let result = remove_leading_zeroes(data);
assert_eq!(result, vec![1, 0, 0, 1, 2, 3, 0, 4]);
let data = &[0, 0, 0, 0, 0];
let result = remove_leading_zeroes(data);
assert_eq!(result, Vec::<u8>::new());
let data = &[];
let result = remove_leading_zeroes(data);
assert_eq!(result, Vec::<u8>::new());
}
}