Scala: Tail recursive power function
function, pow, scala, tail-recursion
Solution
you have to replace so: `case 0 => result`
Problem
I always get "1" as result. :( Whats wrong with this function? ``` def power(base: Int, exp: Int): BigInt = { def _power(result: BigInt, exp: Int): BigInt = exp match { case 0 => 1 case _ => _power(result*base, exp-1) } _power(1, exp) } ```