Function confidence::runtime_with_regular_args

pub fn runtime_with_regular_args(
    ignore_perm_errors_flag: bool, 
    num_bytes: Option<usize>, 
    filename_l: &str, 
    filename_r: Option<&str>, 
    hashes_filename: Option<&str>, 
    writable: impl Write, 
    num_vs: u8, 
    progress: bool, 
    find_file_sizes: bool
) -> Result<i32, Error>

Return number of bytes