#![feature(concat_bytes)] fn main() { concat_bytes!(pie); //~ ERROR expected a byte literal concat_bytes!(pie, pie); //~ ERROR expected a byte literal concat_bytes!("tnrsi", "tnri"); //~ ERROR cannot concatenate string literals concat_bytes!(2.8); //~ ERROR cannot concatenate float literals concat_bytes!(300); //~ ERROR cannot concatenate numeric literals concat_bytes!('a'); //~ ERROR cannot concatenate character literals concat_bytes!(true, false); //~ ERROR cannot concatenate boolean literals concat_bytes!(42, b"va", b'l'); //~ ERROR cannot concatenate numeric literals concat_bytes!(42, b"va", b'l', [1, 2]); //~ ERROR cannot concatenate numeric literals concat_bytes!([ "hi", //~ ERROR cannot concatenate string literals ]); concat_bytes!([ 'a', //~ ERROR cannot concatenate character literals ]); concat_bytes!([ true, //~ ERROR cannot concatenate boolean literals ]); concat_bytes!([ false, //~ ERROR cannot concatenate boolean literals ]); concat_bytes!([ 2.6, //~ ERROR cannot concatenate float literals ]); concat_bytes!([ 265, //~ ERROR numeric literal is out of bounds ]); concat_bytes!([ -33, //~ ERROR expected a byte literal ]); concat_bytes!([ b"hi!", //~ ERROR cannot concatenate doubly nested array ]); concat_bytes!([ [5, 6, 7], //~ ERROR cannot concatenate doubly nested array ]); concat_bytes!(5u16); //~ ERROR cannot concatenate numeric literals concat_bytes!([5u16]); //~ ERROR numeric literal is not a `u8` }