// $G $D/$F.go && $L $F.$A && ./$A.out// Copyright 2009 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.packagemainimport"os"funcmain(){m:=make(map[int]int);m[0]=0;m[0]++;ifm[0]!=1{print("map does not increment\n");os.Exit(1)}}