How to compare two version number strings in golang

Question

I have two strings (they are actually version numbers and they could be any version numbers)

a := \"1.05.00.0156\"  
b := \"1.0.221.9289\"

Answer 1

This depends on what you mean by bigger.

A naive approach would be:

package main

import "fmt"
import "strings"

func main() {
    a := strings.Split("1.05.00.0156", ".")
    b := strings.Split("1.0.221.9289", ".")
    for i, s := range a {
        var ai, bi int
        fmt.Sscanf(s, "%d", &ai)
        fmt.Sscanf(b[i], "%d", &bi)
        if ai > bi {
            fmt.Printf("%v is bigger than %v\n", a, b)
            break
        }
        if bi > ai {
            fmt.Printf("%v is bigger than %v\n", b, a)
            break
        }
    }
}

http://play.golang.org/p/j0MtFcn44Z