support/racy/racy.go


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// Copyright 2013 The Go Authors.  All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build !appengine

// This program demonstrates a race condition.
// To observe the race with the race detector, build with -race.
package main

import "fmt"

func main() {
	done := make(chan bool)
	m := make(map[string]string)
	m["name"] = "world"
	go func() {
		m["name"] = "data race"
		done <- true
	}()
	fmt.Println("Hello,", m["name"])
	<-done
}