/usr/share/go-1.6/test/func4.go is in golang-1.6-src 1.6.1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | // errorcheck
// 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.
// Verify that it is illegal to take the address of a function.
// Does not compile.
package main
var notmain func()
func main() {
var x = &main // ERROR "address of|invalid"
main = notmain // ERROR "assign to|invalid"
_ = x
}
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