word count with go

exercise3.go

package main

import (
    "code.google.com/p/go-tour/wc"
    "strings"
)

var m map[string]int

func WordCount(s string) map[string]int {
    sub_string := strings.Fields(s)
    m = make(map[string]int)
    
    for i := 0 ; i < len(sub_string); i++ {
    	m[sub_string[i]]++   
    }
    
    return m
}

func main() {
    wc.Test(WordCount)
}