golang high order function example
package main
import "fmt"
func main() {
add, subtract := getAddSubtract()
print(3, 4, add, subtract)
}
func print(x, y int, add func(int, int) int, subtract func(int, int) int) {
fmt.Printf("Sum is: %d\n", add(x, y))
fmt.Printf("Difference Value is: %d\n", subtract(x, y))
}
func getAddSubtract() (func(int, int) int, func(int, int) int) {
add := func(x, y int) int {
return x + y
}
subtract := func(x, y int) int {
return x - y
}
return add, subtract
}