Problem Solving in Golang

Reverse Integer

func reverse(x int) int {
    rev:= 0
    for x != 0 {
        pop := x % 10
        x = x / 10
         if rev > math.MaxInt32/10 || (rev == math.MaxInt32 /10 && pop > 7) {
            return 0
        }
        if rev < math.MinInt32/10 || (rev == math.MinInt32/10 && pop < -8) {
            return 0
        }
        rev = rev * 10 + pop
    }
    return rev
}