// run// Copyright 2010 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.package main
funcmain() {
data :=make(map[int]string,1)
data[0] ="hello, "
data[0] +="world!"if data[0] !="hello, world!"{panic("BUG: "+ data[0])}}