Macro const_str::concat

source ·
macro_rules! concat {
    ($($x: expr),+ $(,)?) => { ... };
}
Expand description

Concatenates values into a string slice.

The input type must be one of

§Examples

const PROMPT: &str = "The answer is";
const ANSWER: usize = 42;
const MESSAGE: &str = const_str::concat!(PROMPT, " ", ANSWER);

assert_eq!(MESSAGE, "The answer is 42");