package main

import (
	"io"
	"log"
)

func func1(s string) (n int, err error) {
	defer func() {
		log.Printf("func1(%q) = %d, %v", s, n, err)
	}()
	return 7, io.EOF
}

func main() {
	func1("GO")
}

//package main

//import "fmt"

//func trace(s string) string {
//	fmt.Println("entering: ", s)
//	return s
//}

//func un(s string) {
//	fmt.Println("leaving: ", s)
//}

//func a() {
//	defer un(trace("a"))
//	fmt.Println("in a")
//}

//func b() {
//	defer un(trace("b"))
//	fmt.Println("in b")
//	a()
//}

//func main() {
//	b()
//}