std::concat - Rust
Description: API documentation for the Rust `concat` macro in crate `std`.
Keywords: rust, rustlang, rust-lang, concat

# 1.0.0[−][src]Macro std::concat

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

Concatenates literals into a static string slice.

This macro takes any number of comma-separated literals, yielding an expression of type `&'static str` which represents all of the literals concatenated left-to-right.

Integer and floating point literals are stringified in order to be concatenated.

# Examples

    let s = concat!("test", 10, 'b', true);
    assert_eq!(s, "test10btrue");

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