bitwiseFlags.go

//I'm learning about bitwise flags and bitwise math (|, ^=, |=, etc) in golang...
//http://play.golang.org/p/QTJZJaOjZc

package main

import "fmt"

const (
	one   = 1 << iota // 1 = 0000 0001
	two               // 2 = 0000 0010
	three             // 4 = 0000 0100
)

func main() {

	fmt.Printf("%b\n", one)           // 1
	fmt.Printf("%b\n", two)           // 10
	fmt.Printf("%b\n", three)         // 100
	fmt.Printf("%b\n", one|two|three) // 111

	test := one | two | three

	fmt.Printf("%b\n", test&two)
	fmt.Printf("%c\n", test&two)
	fmt.Printf("%d\n", test&two)
	fmt.Printf("%o\n", test&two)
	fmt.Printf("%q\n", test&two)
	fmt.Printf("%x\n", test&two)
	fmt.Printf("%X\n", test&two)
	fmt.Printf("%U\n", test&two)

	/*	%b	base 2
		%c	the character represented by the corresponding Unicode code point
		%d	base 10
		%o	base 8
		%q	a single-quoted character literal safely escaped with Go syntax.
		%x	base 16, with lower-case letters for a-f
		%X	base 16, with upper-case letters for A-F
		%U 	Unicode format: U+1234; same as "U+%04X"

	*/

}