main with fixed func

main.go

package main

import "fmt"

// Soldier use for all case here
type Soldier struct {
	name    string
	corrupt bool
}

func buggyLoop(soldiers []Soldier) {
	soldierPtrs := []*Soldier{}
	for _, soldier := range soldiers {
		fmt.Printf("Soldier with name: <%s> and pointer: <%p>\n", soldier.name, &soldier)
		soldierPtrs = append(soldierPtrs, &soldier)
	}

	// range in array of pointer -> value here is a pointer
	for _, solsoldierPtr := range soldierPtrs {
		fmt.Printf("soldier <%s> with corruption: <%v> and pointer: <%p>\n", solsoldierPtr.name, solsoldierPtr.corrupt, solsoldierPtr)
	}
}

func fixedLoop(soldiers []Soldier) {
	soldierPtrs := []*Soldier{}
	for _, soldier := range soldiers {
		soldier := soldier // declare local temporary variables. -> new temporary addr in memory
		fmt.Printf("Soldier with name: <%s> and pointer: <%p>\n", soldier.name, &soldier)
		soldierPtrs = append(soldierPtrs, &soldier)
	}

	// range in array of pointer -> value here is a pointer
	for _, solsoldierPtr := range soldierPtrs {
		fmt.Printf("soldier <%s> with corruption: <%v> and pointer: <%p>\n", solsoldierPtr.name, solsoldierPtr.corrupt, solsoldierPtr)
	}
}

func main() {
	soldiers := []Soldier{
		{
			name:    "Too",
			corrupt: true,
		},
		{
			name:    "Pawit",
			corrupt: true,
		},
		{
			name:    "Tone",
			corrupt: false,
		},
	}

	fmt.Println("----- buggyLoop ------")
	buggyLoop(soldiers)

	fmt.Println("----- fixedLoop ------")
	fixedLoop(soldiers)
}