# Concatenates multiple identifiers. # Usage ```rust use concat_mulidents::concat_idents; macro_rules! concat_test { ($name:ident, $name2:ident) => { concat_idents! { fn $name--_--$name2() { let $name--$name2 = "Hello, World!"; println!("{}", $name--$name2); } } }; } fn main () { concat_test!(hello, world); hello_world(); } ```