fib40-static.rill

import std.stdio;
import std.assert;

def main() {
    val a = fib!(40)();
    assert( a == 102334155 );
    a.print();
}

def fib!(v: int32)(): int32 when v == 0 {
    return 0;
}

def fib!(v: int32)(): int32 when v == 1 {
    return 1;
}

def fib!(v: int32)(): int32 when v >= 2 {
    return fib!(v-1)() + fib!(v-2)();
}