String concat / interpolation?

[ttytm]

Is there a way?

[mertcandav]

There is no support for string interpolation.
But you can use std::fmt standard library for string formatting.

For example:

use fmt for std::fmt

fn main() {
    let (a, b, c, d) = 1, 2, 3, 4
    outln(fmt::format("{}, {}, {}, {}", a, b, c, d)) // 1, 2, 3, 4
    fmt::printf("{}, {}, {}, {}\n", a, b, c, d)      // 1, 2, 3, 4
    fmt::println(a, b, c, d)                         // 1234
}