numeric-constants

Language: Gold, Platform: Echoes, Category: Tour of Go
https://github.com/remobjects/ElementsSamples/tree/master/Gold/Echoes/Tour of Go/numeric-constants

• numeric-constants.Echoes
  • References
    • #
  • Source Files
    • numeric-constants.go
  • Other Files

numeric-constants.go

// Ignored build directive: +build OMIT

package main

import "fmt"

const (
	// Create a huge number by shifting a 1 bit left 100 places.
	// In other words, the binary number that is 1 followed by 100 zeroes.
	Big = 1 << 100
	// Shift it right again 99 places, so we end up with 1<<1, or 2.
	Small = Big >> 99
)

func needInt(x int) int { return x*10 + 1 }
func needFloat(x float64) float64 {
	return x * 0.1
}

func main() {
	fmt.Println(needInt(Small))
	fmt.Println(needFloat(Small))
	fmt.Println(needFloat(Big))
}