Macro concat_with::concat_line

macro_rules! concat_line {
    ($($e:expr),* $(,)*) => { ... };
}

Concatenates literals into a static string slice separated by a line break, \n.

#[macro_use] extern crate concat_with;

assert_eq!("test\n10\nb\ntrue", concat_line!("test", 10, 'b', true));