// For more tutorials: https://blog.learngoprogramming.com // // Copyright © 2018 Inanc Gumus // Learn Go Programming Course // License: https://creativecommons.org/licenses/by-nc-sa/4.0/ // package main import "fmt" func showN() { if N == 0 { fmt.Println("showN : N is zero, increment it.") return } fmt.Printf("showN : N = %d\n", N) } func incrN() { N++ } // you cannot declare a function within the same package with the same name // func incrN() { // }