blob: 717f1f0a4d5b84075a2b28b1a765c93f3ea6e021 [file] [log] [blame]
// $G $D/$F.go && $L $F.$A && (! ./$A.out || echo BUG: should fail)
// 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.
package main
import "unsafe"
var x byte
func main() {
var p *[1<<30]byte = nil;
x = 123;
// The problem here is not the use of unsafe:
// it is that indexing into p[] with a large
// enough index jumps out of the unmapped section
// at the beginning of memory and into valid memory.
// Pointer offsets and array indices, if they are
// very large, need to dereference the base pointer
// to trigger a trap.