parse first 16 chars from hash (string) to int64

main.go

package main

import (
	"strconv"
	"fmt"
	"reflect"
)

func main() {
	// Use the max value for signed 64 integer. http://golang.org/pkg/builtin/#int64
	var hash string = "0c821f675f132d790b3f25e79da739a7"
	var short = hash[0:16]
	
	fmt.Printf("short is %s\n", short)
		
	i, err := strconv.ParseInt(short, 16, 64)
	if err != nil {
		panic(err)
	}
	fmt.Printf("%v with type %s!\n", i, reflect.TypeOf(i))
}