rust nstrcmp

gistfile1.txt

macro_rules! trace(
  ($($arg:tt)*) => (
    { let x = ::std::io::stdout().write_line(format_args!(::std::fmt::format, $($arg)*)); println!("{}", x); }
  );
)

macro_rules! nstrcmp(
  ($x:ident, $y:ident, $n:expr) => (
    $x.len() >= $n && $y.len() >= $n && $x.slice(0, $n) == $y.slice(0, $n)
  );
)

#[test]
fn test_nstrcmp() {
  let x = ~"Hello World";
  let y = ~"Hello";
  let z = ~"hello";
  trace!("nstrcmp: {:?}", nstrcmp!(x, y, 5));
  trace!("nstrcmp: {:?}", nstrcmp!(x, y, 10));
  trace!("nstrcmp: {:?}", nstrcmp!(x, y, 3));
  trace!("nstrcmp: {:?}", nstrcmp!(z, y, 4));
}

strcmp: true
nstrcmp: false
nstrcmp: true
nstrcmp: false
test nstrcmp::test_nstrcmp ... ok

test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured