fibonacci.csp

# fibonacci.csp
import "io.csp";

fn fib(n: i32): i32 {
    let a = 0;
    let b = 1;
    for 0 .. n {
        a + b |> (a = b, b = $);
    }

    <- a;
}

fn main(): i32 {
    let n = 10;
    std::io::printf("fib(%i) = %i\n", n, fib(n));

    <- 0;
}