package main

import (
    "fmt"
    "math"
)

func cappedPow(x, n, lim float64) float64 {
    // executing a short statement before the
    // actual condition occurs. the statement
    // values are available on the 'else'
    // as well.
    if v := math.Pow(x, n); v < lim {
        return v
    } else {
        fmt.Printf("oh noes, %g >= %g!\n", v, lim)
    }

    return lim
}

func main() {
    fmt.Println(cappedPow(3, 2, 10))
    fmt.Println(cappedPow(3, 3, 20))
}