LeGoEn10Etapes/fonctions/main.go

/* Copyright (C) 2011-2023  Patrick H. E. Foubet - E2L Ivry
Ecole du Logiciel Libre : https://e2li.org/

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or any
later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>
*******************************************************************/

package main

import "fmt"

func init() {
	fmt.Println("Salut depuis main 1")
}

func init() {
	fmt.Println("Salut depuis main 2")
}

func init() {
	fmt.Println("Salut depuis main 3")
}

func main() {
	fmt.Println("Salut tout le Monde")
	q, r := NamedDivide(15, 6)
	fmt.Printf("Division 15 / 6, Quotient: %d Reste: %d\n", q, r)
	fmt.Printf("Facture: %.2f\n", Facture(8.75, 10.2, 3.7))
	Bonjour()

	Bonjour := func() string {
		return "On cache la fonction externe Bonjour"
	}

	TakeFunc(GiveFunc())
	TakeFunc(Bonjour)
}

func Bonjour() {
	fmt.Println("Bonjour")
}

// ceci provoque une erreur de redefinition
// func Bonjour(m string) {
// 	fmt.Println(m)
// }

func Add(a, b int) int {
	return a + b
}

func Divide(a, b int) (int, int) {
	return a / b, a % b
}

func NamedDivide(a, b int) (quotient int, remainder int) {
	quotient, remainder = a/b, a%b
	return
}

func TakeFunc(take func() string) {
	data := take()
	fmt.Println(data)
}

func GiveFunc() func() string {
	f := func() string {
		return "Fonction retour"
	}
	return f
}

func Facture(mht float64, items ...float64) (total float64) {
	for _, item := range items {
		total += item
	}

	total *= (1 + mht*.01)
	return
}