#![allow(dead_code)]
fn main() {}
#[allow(unnecessary_operation)]
fn starts_with() {
"".chars().next() == Some(' ');
Some(' ') != "".chars().next();
}
fn chars_cmp_with_unwrap() {
let s = String::from("foo");
if s.chars().next().unwrap() == 'f' { }
if s.chars().next_back().unwrap() == 'o' { }
if s.chars().last().unwrap() == 'o' { }
if s.chars().next().unwrap() != 'f' { }
if s.chars().next_back().unwrap() != 'o' { }
if s.chars().last().unwrap() != 'o' { }
}
#[allow(unnecessary_operation)]
fn ends_with() {
"".chars().last() == Some(' ');
Some(' ') != "".chars().last();
"".chars().next_back() == Some(' ');
Some(' ') != "".chars().next_back();
}