diff options
Diffstat (limited to 'test/nilptr/arrayindex.go')
-rw-r--r-- | test/nilptr/arrayindex.go | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/test/nilptr/arrayindex.go b/test/nilptr/arrayindex.go deleted file mode 100644 index fa26532c6..000000000 --- a/test/nilptr/arrayindex.go +++ /dev/null @@ -1,26 +0,0 @@ -// $G $D/$F.go && $L $F.$A && -// ((! sh -c ./$A.out) >/dev/null 2>&1 || 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. - println(p[uintptr(unsafe.Pointer(&x))]) // should crash -} |