Slices (with closure)

slices.go

package main

import "golang.org/x/tour/pic"

func mult(x, y int) uint8 {
	return uint8( x * y )
}

func mid(x, y int) uint8 {
	return uint8( (x + y) / 2 )
}

func pow(x, y int) uint8 {
	return uint8( x^y )
}


func generateWithFunc(generator func(x, y int) uint8) func(dx int, dy int) [][]uint8 {
	return func(dx, dy int) [][]uint8 {
		tab := make([][]uint8, dx)
		for x := range tab {
			tab[x] = make([]uint8, dy) 
			for y := range tab[x] {
				tab[x][y] = generator(x, y)
			}
		}
		return tab
	}
}

func main() {
	pic.Show(generateWithFunc(mid))
}